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You searched for: Publication Year 2019 Remove constraint Publication Year: 2019 Subject discriminant analysis Remove constraint Subject: discriminant analysis
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1. The 1H NMR serum metabolomics response to a two meal challenge: a cross-over dietary intervention study in healthy human volunteers

Author:
Millie Rådjursöga; Helen M. Lindqvist; Anders Pedersen; Göran B. Karlsson; Daniel Malmodin; Carl Brunius; Lars Ellegård; Anna Winkvist
Source:
Nutrition journal 2019 v.18 no.1 pp. 25
ISSN:
1475-2891
Subject:
biochemical pathways; blood serum; breakfast; creatine; cross-over studies; discriminant analysis; eggs; experimental design; food intake; ham; isoleucine; metabolites; metabolome; metabolomics; methanol; models; nuclear magnetic resonance spectroscopy; nutritional intervention; tyrosine; volunteers
Abstract:
... BACKGROUND: Metabolomics represents a powerful tool for exploring modulation of the human metabolome in response to food intake. However, the choice of multivariate statistical approach is not always evident, especially for complex experimental designs with repeated measurements per individual. Here we have investigated the serum metabolic responses to two breakfast meals: an egg and ham based bre ...
DOI:
10.1186/s12937-019-0446-2
PubMed:
30961592
PubMed Central:
PMC6454665

2. 1H NMR spectroscopy combined with multivariate data analysis for differentiation of Brazilian lager beer according to brewery

Author:
Luis Augusto da Silva; Danilo Luiz Flumignan; Helena Redigolo Pezza; Leonardo Pezza
Source:
European food research & technology 2019 v.245 no.11 pp. 2365-2372
ISSN:
1438-2377
Subject:
beers; chemical interactions; chemometrics; data collection; discriminant analysis; least squares; nuclear magnetic resonance spectroscopy; organic acids and salts; pH; prediction; principal component analysis
Abstract:
... In this study, ¹H NMR spectroscopy was used to classify samples of beer, considering three categories (Ambev, Heineken, and Grupo Petrópolis), employing chemometric methods: principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA), and soft independent modeling of class analogies (SIMCA). The full NMR spectra were evaluated, although only the aliphatic region (0–3 p ...
DOI:
10.1007/s00217-019-03354-5

3. 1H NMR-based fingerprinting of eleven Mexican Capsicum annuum cultivars

Author:
Elideth Florentino-Ramos; Nemesio Villa-Ruano; Diego Hidalgo-Martínez; Moisés Ramírez-Meraz; Reinaldo Méndez-Aguilar; Rodolfo Velásquez-Valle; L. Gerardo Zepeda-Vallejo; Nury Pérez-Hernández; Elvia Becerra-Martínez
Source:
Food research international 2019 v.121 pp. 12-19
ISSN:
0963-9969
Subject:
Capsicum annuum; amino acids; antioxidants; ascorbic acid; bioavailability; cultivars; databases; discriminant analysis; free amino acids; hot peppers; human nutrition; metabolites; metabolomics; nuclear magnetic resonance spectroscopy; phenolic acids; phylogeny; principal component analysis; Mexico
Abstract:
... Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted 1H NMR-based metabolomic profiling of 11 cultivars of Capsicum annuum species which are routinely consumed worldwide. The metabolomic fingerprinting detected via 1H NMR contained 44 metabolites including sugars, amino acids, organic acids, polyphenolic acids and alcoho ...
DOI:
10.1016/j.foodres.2019.03.025

4. 1H NMR-based metabolomics revealed the protective effects of Guilingji on the testicular dysfunction of aging rats

Author:
Si-jun Zhao; Jun-sheng Tian; Gang Tai; Xiao-xia Gao; Hua-lan Liu; Guan-hua Du; Xiao-jie Liu; Xue-mei Qin
Source:
Journal of ethnopharmacology 2019 v.238 pp. 111839
ISSN:
0378-8741
Subject:
3-hydroxybutyric acid; Oriental traditional medicine; alanine; amino acid metabolism; blood serum; discriminant analysis; elderly; least squares; longevity; metabolites; metabolomics; phenylalanine; protective effect; pyruvic acid; rats; testes; testosterone; tissues; youth
Abstract:
... Guilingji (GLJ), a famous and classical traditional Chinese medicine (TCM) prescription, has been used to extend the lifespan and improve the life qualities of the elderly for hundreds of years in China.Aim of the study: We aimed to explore the protective effects of GLJ on the testicular dysfunction of aging rats, as well as the regulating effects of GLJ on the metabolic disturbance and metabolite ...
DOI:
10.1016/j.jep.2019.111839

5. 1H NMR Metabolic Profile to Discriminate Pasture Based Alpine Asiago PDO Cheeses

Author:
Severino Segato; Augusta Caligiani; Barbara Contiero; Gianni Galaverna; Vittoria Bisutti; Giulio Cozzi
Source:
Animals 2019 v.9 no.10 pp. -
ISSN:
2076-2615
Subject:
biomarkers; cheese ripening; cheeses; chemical analysis; choline; dairies; discriminant analysis; highlands; lysine; metabolites; metabolomics; milk; nuclear magnetic resonance spectroscopy; pastures; raw milk; tyrosine; water solubility; Italy
Abstract:
... The study was carried out in an alpine area of North-Eastern Italy to assess the reliability of proton nuclear magnetic resonance 1H NMR to fingerprint and discriminate Asiago PDO cheeses processed in the same dairy plant from upland pasture-based milk or from upland hay-based milk. Six experimental types of Asiago cheese were made from raw milk considering 2 cows’ feeding systems (pasture- ...
DOI:
10.3390/ani9100722
PubMed:
31557876
PubMed Central:
PMC6827078

6. 1H-NMR Metabolite Fingerprinting Analysis Reveals a Disease Biomarker and a Field Treatment Response in Xylella fastidiosa subsp. pauca-Infected Olive Trees

Author:
Chiara Roberta Girelli; Federica Angilè; Laura Del Coco; Danilo Migoni; Luigi Zampella; Simone Marcelletti; Nicola Cristella; Paolo Marangi; Marco Scortichini; Francesco Paolo Fanizzi
Source:
Plants 2019 v.8 no.5 pp. -
ISSN:
2223-7747
Subject:
Olea europaea; Xylella fastidiosa subsp. pauca; adults; bacterial diseases of plants; biochemical pathways; biomarkers; cultivars; decline; discriminant analysis; gamma-aminobutyric acid; least squares; leaves; lignin; malic acid; metabolism; metabolites; metabolomics; models; nuclear magnetic resonance spectroscopy; olives; orchards; phenolic compounds; plant pathogenic bacteria; quinic acid; spraying; spring; summer; tree diseases; trees; Italy
Abstract:
... Xylella fastidiosa subsp. pauca is a xylem-limited bacterial phytopathogen currently found associated on many hectares with the “olive quick decline syndrome” in the Apulia region (Southern Italy), and the cultivars Ogliarola salentina and Cellina di Nardò result in being particularly sensitive to the disease. In order to find compounds showing the capability of reducing the pop ...
DOI:
10.3390/plants8050115
PubMed:
31035723
PubMed Central:
PMC6571561

7. ATR-FTIR spectroscopy non-destructively detects damage-induced sour rot infection in whole tomato fruit

Author:
Paul Skolik; Martin R. McAinsh; Francis L. Martin
Source:
Planta 2019 v.249 no.3 pp. 925-939
ISSN:
0032-0935
Subject:
Fourier transform infrared spectroscopy; Geotrichum candidum; Solanum lycopersicum; cherry tomatoes; discriminant analysis; disease course; epidermis (plant); food security; fruit crops; fruits; horticulture; host-pathogen relationships; industry; microbial detection; multivariate analysis; pathogens; principal component analysis
Abstract:
... MAIN CONCLUSION: ATR-FTIR spectroscopy with subsequent multivariate analysis non-destructively identifies plant–pathogen interactions during disease progression, both directly and indirectly, through alterations in the spectral fingerprint. Plant–environment interactions are essential to understanding crop biology, optimizing crop use, and minimizing loss to ensure food security. Damage-induced pa ...
DOI:
10.1007/s00425-018-3060-1

8. Accumulation, fractionation and health risk assessment of fluoride and heavy metals in soil-crop systems in northwest China

Author:
Yepu Li; Shengli Wang; Zhongren Nan; Fei Zang; Huiling Sun; Qian Zhang; Wen Huang; Lili Bao
Source:
Science of the total environment 2019 v.663 pp. 307-314
ISSN:
0048-9697
Subject:
Triticum aestivum; adults; basins; cadmium; carbonates; children; chromium; copper; corn; corn cobs; discriminant analysis; fluorides; fractionation; health effects assessments; heavy metals; hulls; human health; lead; leaves; males; manganese; municipal wastewater; nickel; risk; roots; sewage; soil; soil pollution; stems; streams; wastewater irrigation; water solubility; wheat; zinc; China
Abstract:
... Untreated industrial sewage and domestic wastewater irrigation has led to agricultural soil-crop system contamination by heavy metals and fluoride in Dongdagou and Xidagou stream basins, Baiyin city, China. A total of 36 pairs of soil and wheat samples (roots, stalks, leaves, husks, and grains) and 42 pairs of soil and maize samples (roots, stalk1, stalk2, stalk3, leaves, husks, corncobs and grain ...
DOI:
10.1016/j.scitotenv.2019.01.257

9. Accurate discrimination of Gastrodia elata from different geographical origins using high‐performance liquid chromatography fingerprint combined with boosting partial least‐squares discriminant analysis

Author:
Shanshan Sun; Yancheng Li; Lijun Zhu; Haiyan Ma; Lupan Li; Yufeng Liu
Source:
Journal of separation science 2019 v.42 no.17 pp. 2875-2882
ISSN:
1615-9306
Subject:
Gastrodia elata; Oriental traditional medicine; algorithms; discriminant analysis; high performance liquid chromatography; least squares; medicinal properties; prediction; principal component analysis; provenance
Abstract:
... Gastrodia elata from different geographical origins varies in quality and pharmacological activity. This study focused on the classification and identification of Gastrodia elata from six producing areas using high‐performance liquid chromatography fingerprint combined with boosting partial least‐squares discriminant analysis. Before recognition analysis, a principal component analysis was applied ...
DOI:
10.1002/jssc.201900073

10. Acoustically different contact calls of mother and young goitred gazelle are equally individualized: is this a common relationship in ruminants?

Author:
Ilya A. Volodin; Olga V. Sibiryakova; Natalia V. Soldatova; Elena V. Volodina
Source:
Behaviour v.156 no.12 pp. 1185-1207
ISSN:
0005-7959
Subject:
Cervidae; Gazella subgutturosa; acoustics; adults; age structure; discriminant analysis; females; gazelles; neonates; nose
Abstract:
... Relationships between individualization and the acoustics of contact calls in ungulate mother and young are different between taxa. We compared the acoustic variables and individuality of adult female and neonate goitred gazelles Gazella subgutturosa. Discriminant function analysis based on six acoustic variables of nasal (closed-mouth) contact calls similarly accurately classified calls to neonat ...
DOI:
10.1163/1568539X-00003561

11. Adulterant identification in mutton by electronic nose and gas chromatography-mass spectrometer

Author:
Qian Wang; Lu Li; Wu Ding; Dequan Zhang; Jiayi Wang; Kevin Reed; Boce Zhang
Source:
Food control 2019 v.98 pp. 431-438
ISSN:
0956-7135
Subject:
adulterants; adulterated products; discriminant analysis; duck meat; ducks; electronic nose; flavor; gas chromatography-mass spectrometry; least squares; markets; mutton; neural networks; public health; quantitative analysis; rapid methods; spectrometers; volatile organic compounds; China
Abstract:
... Battling meat adulteration is essential in preserving both public health and a fair market. This study depicts a method of reducing adulteration in meats, in which Electronic-nose (E-nose) and gas chromatography-mass spectrometer (GC-MS) were applied to identify adulterants in mutton. Duck meat was selected as a model adulterant due to its lower cost and similarity in flavor to mutton, as well as ...
DOI:
10.1016/j.foodcont.2018.11.038

12. Advanced understanding of genetic risk and metabolite signatures in construction workers via cytogenetics and metabolomics analysis

Author:
Ganesan Raja; Yoon-Kwan Jang; Jung-Soo Suh; Vasantha-Srinivasan Prabhakaran; Tae-Jin Kim
Source:
Process biochemistry 2019 v.86 pp. 117-126
ISSN:
1359-5113
Subject:
apoptosis; biomarkers; blood cells; blood serum; building construction; chemical reactions; cytokinesis; discriminant analysis; genotoxicity; genotype-environment interaction; karyotyping; metabolites; metabolome; metabolomics; mutagens; nuclear magnetic resonance spectroscopy; patients; reciprocal translocation; trisomics
Abstract:
... Clinical biomarkers of building construction workers (BCW)-related genetic risk and metabolome fluctuations are still lacking, and profiling and validating them is challenging. Metabolomics is well suited to address this need, and serum is a valuable and accessible biofluid. This study aimed to characterize the 1H nuclear magnetic resonance (NMR)-based serum metabolomics and discrimination of pati ...
DOI:
10.1016/j.procbio.2019.07.016

13. Advances in Electronic Nose Development for Application to Agricultural Products

Author:
Wenshen Jia; Gang Liang; Zhuojun Jiang; Jihua Wang
Source:
Food analytical methods 2019 v.12 no.10 pp. 2226-2240
ISSN:
1936-9751
Subject:
discriminant analysis; disease detection; electronic nose; fish; freshness; fruits; high performance liquid chromatography; livestock; meat; odors; principal component analysis; provenance; sensory evaluation; tandem mass spectrometry; tea
Abstract:
... High agricultural product quality is a fundamental requirement for consumers and odor is an important indicator that reflects product quality. Conventional analysis methods are based on sensory evaluation or on physic-chemical methods (e.g., high-performance liquid chromatography, liquid chromatography with tandem mass spectrometry). Analysis methods should be simple, quick, nondestructive, inexpe ...
DOI:
10.1007/s12161-019-01552-1

14. Advances in chemometric control of commercial diesel adulteration by kerosene using IR spectroscopy

Author:
Heloise O. M. A. Moura; Anne B. F. Câmara; Marfran C. D. Santos; Camilo L. M. Morais; Leomir A. S. de Lima; Kássio M. G. Lima; Luciene S. de Carvalho
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.11 pp. 2301-2315
ISSN:
1618-2642
Subject:
adulterants; adulterated products; algorithms; calibration; chemometrics; diesel fuel; discriminant analysis; infrared spectroscopy; kerosene; least squares; markets; models; physicochemical properties; principal component analysis; screening; storage quality; storage time
Abstract:
... Adulteration is a recurrent issue found in fuel screening. Commercial diesel contamination by kerosene is highly difficult to be detected via physicochemical methods applied in market. Although the contamination may affect diesel quality and storage stability, there is a lack of efficient methodologies for this evaluation. This paper assessed the use of IR spectroscopies (MIR and NIR) coupled with ...
DOI:
10.1007/s00216-019-01671-y

15. Age-dependent hypopharyngeal gland development and morphometric characteristics in the cross-bred lineage of honeybees reared for high royal jelly production

Author:
Mi Ra Lee; Yong Soo Choi; Dong Won Kim; Man Young Lee
Source:
Journal of Asia-Pacific entomology 2019 v.22 no.3 pp. 699-704
ISSN:
1226-8615
Subject:
body weight; crossbreds; discriminant analysis; geometry; hatching; honey bees; hybrids; hypopharyngeal glands; inbred lines; morphometry; proboscis; rearing; royal jelly; wings
Abstract:
... We reared the cross-bred FD lineage (F♀ × D♂) from inbred lines in pursuit of high royal jelly (RJ)-producing honeybee traits. The present study compared the new crossbred FD line to a high RJ-producing colony (HRC) and a low RJ-producing colony (LRC) by investigating the production of RJ, morphological characteristics, and age-dependent hypopharyngeal gland (HPG) development of the honeybees. The ...
DOI:
10.1016/j.aspen.2019.05.004

16. Aging discrimination of French cheese types based on the optimization of an electronic nose using multivariate computational approaches combined with response surface method (RSM)

Author:
Mahdi Ghasemi-Varnamkhasti; Ayat Mohammad-Razdari; Seyedeh Hoda Yoosefian; Zahra Izadi; Maryam Siadat
Source:
Lebensmittel-Wissenschaft + Technologie 2019 v.111 pp. 85-98
ISSN:
0023-6438
Subject:
cheeses; data collection; discriminant analysis; electronic nose; least squares; lodging; neural networks; odors; prediction; principal component analysis; response surface methodology; storage time; support vector machines
Abstract:
... This research was conducted to classify different types of cheeses using an electronic nose (e-nose). The experiments were accomplished in three storage periods such as on days 1, 7, and 14. To classify and analyze the output response of the sensors, artificial neural network (ANN), principal component analysis (PCA), linear discriminant analysis (LDA), support vector machine (SVM), partial least ...
DOI:
10.1016/j.lwt.2019.04.099

17. Agro-morphological description, genetic diversity and population structure of chickpea using genomic-SSR and ESR-SSR molecular markers

Author:
Hiva Seyedimoradi; Reza Talebi; Homayoun Kanouni; Amir Mohammad Naji; Ezzat Karami
Source:
Journal of plant biochemistry and biotechnology 2019 v.28 no.4 pp. 483-495
ISSN:
0971-7811
Subject:
alleles; allelic variation; breeding programs; chickpeas; cluster analysis; discriminant analysis; expressed sequence tags; genetic markers; genotype; germplasm; loci; microsatellite repeats; pods; population structure; seed yield; seeds
Abstract:
... In this study, genetic diversity of agro-morphological traits and population structure of 167 chickpea were assessed using genomic-SSR and EST-SSR molecular markers. Field evaluation of chickpea genotypes showed highly variation for most of measured characteristics such as: number of pods per plant, number of seeds per plant, 100-seed weight and seed yield. Cluster analysis based on morphological ...
DOI:
10.1007/s13562-019-00507-1

18. Agromorphological divergence among four agro-ecological populations of Bambara groundnut (Vigna subterranea (L.) Verdc.) in Côte d'Ivoire

Author:
Beket Séverin Bonny; Koffi Adjoumani; Dagou Seka; Kouamé Guillaume Koffi; Léonie Clémence Kouonon; Kouamé Kévin Koffi; Irié A. Zoro Bi
Source:
Annals of agricultural science 2019 v.64 no.1 pp. 103-111
ISSN:
0570-1783
Subject:
Vigna subterranea; agroecological zones; analysis of variance; breeding; climatic factors; descriptive statistics; discriminant analysis; phenology; phenotypic variation; provenance; rain; temperature; Cote d'Ivoire
Abstract:
... Characterization of four Bambara groundnut populations regrouping one hundred one accessions collected from four agro-ecological zones in Côte d’Ivoire was made using 19 agro-morphological traits. Descriptive statistics indicated a wide range and high phenotypic variability within each population. Analyses of variance showed highly significant agro-morphological differentiation among populations. ...
DOI:
10.1016/j.aoas.2019.04.001

19. Alignment of Food Processing Classification Systems with Nutrient Quality (OR14-01-19)

Author:
Rachel Bleiweiss-Sande; Kenneth Chui; Whitney Evans; Sarah Amin; Jeanne Goldberg; Jennifer Sacheck
Source:
Current developments in nutrition 2019 v.3 no.Supplement_1 pp. -
ISSN:
2475-2991
Subject:
National Health and Nutrition Examination Survey; added sugars; ascorbic acid; calcium; children; choline; discriminant analysis; eating habits; food intake; food processing; iron; magnesium; nutrient content; nutrients; nutritional adequacy; potassium; processed foods; regression analysis; saturated fats; sodium; vitamin A
Abstract:
... Processed foods are associated with energy-dense eating patterns among children, yet research using food processing classification systems has led to varying conclusions regarding the impact of processed foods on dietary quality. This study utilized three common classification systems to examine (a) agreement between systems for processing level assignment, and (b) relationships between processing ...
DOI:
10.1093/cdn/nzz038.OR14-01-19

20. Analysis of Bobbing Displays in Four Species of Galápagos Lava Lizards Using Conventional and Novel Quantitative Methods

Author:
Joseph M. Macedonia; David L. Clark; Morgan R. Fonley; Isabella Centurione; John W. Rowe; Carlos A. Valle
Source:
Herpetologica 2019 v.75 no.4 pp. 290-300
ISSN:
1938-5099
Subject:
courtship; discriminant analysis; lizards; predators; prediction; principal component analysis; quantitative analysis; territoriality
Abstract:
... Some of the most striking behaviors of animals are displays used in courtship, territorial behavior, and in defense against predators. Among reptiles, lizards exhibit enormous diversity in the stereotyped motion patterns of their bobbing displays. Although the bobbing displays of numerous lizard species have been described to date, those of the Galápagos Lava Lizards (Microlophus spp., Tropidurida ...
DOI:
10.1655/Herpetologica-D-19-00015.1

21. Analysis of Scotch Whisky by 1H NMR and chemometrics yields insight into its complex chemistry

Author:
Will Kew; Ian Goodall; Dušan Uhrín
Source:
Food chemistry 2019 pp. 125052
ISSN:
0308-8146
Subject:
Scotch whisky; chemometrics; discriminant analysis; ethanol; least squares; malt; nuclear magnetic resonance spectroscopy; principal component analysis; provenance; reference standards; wood
Abstract:
... Scotch Whisky has been analysed as a complex mixture in its raw form using high resolution Nuclear Magnetic Resonance (NMR) and previously developed water and ethanol suppression techniques. This has allowed for the positive identification of 25 compounds in Scotch Whisky by means of comparison to reference standards, spike-in experiments, and advanced 1D and 2D NMR experiments. Quantification of ...
DOI:
10.1016/j.foodchem.2019.125052

22. Analysis of breakage patterns in a sheared layer of elongated particles

Author:
Marek Schöngut; Zdenĕk Grof; František Štĕpánek
Source:
Powder technology 2019 v.345 pp. 682-691
ISSN:
0032-5910
Subject:
discriminant analysis; equipment design; equipment performance; particle size; powders
Abstract:
... Discrete Element Method (DEM) simulations of elongated (i.e. needle-shaped) particles breakage in a shear field confined between two parallel plates, in analogy with processes occurring in a powder shear cell tester, were carried out. Effects of particle strength, shear rate and the compressive stress were investigated. The breakage patterns occurring in a layer of particles due to compressive and ...
DOI:
10.1016/j.powtec.2019.01.045

23. Analysis of chemosensory markers in cigarette smoke from different tobacco varieties by GC×GC-TOFMS and chemometrics

Author:
Thiago G. Schwanz; Liane V.V. Bokowski; Marcelo C.A. Marcelo; Angela C. Jandrey; Jailson C. Dias; Daniel H. Maximiano; Luciana S. Canova; Oscar F.S. Pontes; Guilherme P. Sabin; Samuel Kaiser
Source:
Talanta 2019 v.202 pp. 74-89
ISSN:
0039-9140
Subject:
chemometrics; cigarettes; color; discriminant analysis; fermentation; flavor; heterocyclic nitrogen compounds; heterocyclic oxygen compounds; least squares; leaves; models; plant cultural practices; polycyclic aromatic hydrocarbons; smoke; sucrose esters; sugar content; Virginia
Abstract:
... Commercial cigarettes are made from a blend of different tobacco varieties, which in turn are the results of different agronomic practices and post-harvest curing processes. The highly complex mixture of smoke compounds reflects each tobacco variety and the levels of sensory-relevant markers. Therefore, the aim of this work was to identify potential relevant chemosensory markers in the mainstream ...
DOI:
10.1016/j.talanta.2019.04.060

24. Analysis of the Effects of Dietary Pattern on the Oral Microbiome of Elite Endurance Athletes

Author:
Nida Murtaza; Louise M. Burke; Nicole Vlahovich; Bronwen Charlesson; Hayley M. O’Neill; Megan L. Ross; Katrina L. Campbell; Lutz Krause; Mark Morrison
Source:
Nutrients 2019 v.11 no.3 pp. -
ISSN:
2072-6643
Subject:
Haemophilus; Neisseria; Prevotella; Streptococcus; athletes; carbohydrates; diet; discriminant analysis; eating habits; energy intake; fatigue strength; formaldehyde; genes; human health; least squares; males; microbiome; microorganisms; multidimensional scaling; ribosomal RNA; saliva; Asia; Australia; Europe; North America; South America
Abstract:
... Although the oral microbiota is known to play a crucial role in human health, there are few studies of diet x oral microbiota interactions, and none in elite athletes who may manipulate their intakes of macronutrients to achieve different metabolic adaptations in pursuit of optimal endurance performance. The aim of this study was to investigate the shifts in the oral microbiome of elite male endur ...
DOI:
10.3390/nu11030614
PubMed:
30871219
PubMed Central:
PMC6471070

25. Analysis of transcriptional response in zebrafish eleutheroembryos exposed to climbazole: Signaling pathways and potential biomarkers

Author:
Hui Zhang; Zhi‐Feng Chen; Zenghua Qi; Shi‐Chao Yan; Wen‐Wen Wei; Guoguang Liu; Zongwei Cai
Source:
Environmental toxicology and chemistry 2019 v.38 no.4 pp. 794-805
ISSN:
0730-7268
Subject:
Danio rerio; active ingredients; aquatic environment; biomarkers; discriminant analysis; embryo (animal); essential genes; fish; gene expression regulation; inflammation; interleukin-1beta; interleukin-8; larvae; least squares; messenger RNA; oocytes; oxidative stress; personal care products; phenotype; risk; sexual development; signal transduction; transcription (genetics); translation (genetics)
Abstract:
... Climbazole is an antifungal active ingredient used in personal care products. After application this chemical reaches the aquatic environment and may pose a risk to fish. In the present study, we measured the transcriptional effects of essential genes related to a wide range of signaling pathways on zebrafish eleutheroembryos exposed to climbazole at environmentally relevant and predicted worst‐ca ...
DOI:
10.1002/etc.4355

26. Analysis of volatile organic compounds from patients and cell lines for the validation of lung cancer biomarkers by proton-transfer-reaction mass spectrometry

Author:
Yun Sun; Yibing Chen; Chuanqiang Sun; Haipei Liu; Yan Wang; Xuehui Jiang
Source:
Analytical methods 2019 v.11 no.25 pp. 3188-3197
ISSN:
1759-9679
Subject:
adenocarcinoma; biochemical pathways; biomarkers; cell lines; discriminant analysis; headspace analysis; ions; lung neoplasms; mass spectrometry; neoplasm cells; patients; squamous cell carcinoma; volatile organic compounds; volunteers
Abstract:
... Exhaled breath from 60 volunteers (20 adenocarcinoma lung cancer (LC) patients, 10 squamous cell carcinoma LC patients, and 30 healthy people) was analyzed using proton-transfer-reaction mass spectrometry (PTR-MS). The Mann–Whitney U test and stepwise forward linear discriminant analysis (LDA) were performed for data analysis. By applying LDA, it was possible to discriminate these three groups. Co ...
DOI:
10.1039/c9ay00759h

27. Analyzing Sunn pest resistance in bread wheat genotypes using phenotypic characteristics and molecular markers

Author:
Shilan Nasrollahi; Hedieh Badakhshan; Amin Sadeghi
Source:
Physiology and molecular biology of plants 2019 v.25 no.3 pp. 765-778
ISSN:
0971-5894
Subject:
discriminant analysis; flour; genetic markers; genetic variation; genotype; germplasm; grain yield; insects; pest resistance; pests; phenotype; regression analysis; retrotransposons; screening; start codon; wheat; Asia
Abstract:
... Sunn pest is one of the most destructive insects in the western and central parts of Asia causing severe reductions of wheat yield and flour quality. Therefore, an effort was undertaken to find effective resistance by analyzing genetic variation among 25 wheat genotypes artificially infested in field-cages as well as using start codon targeted (SCoT) polymorphism and inter- retrotransposon amplifi ...
DOI:
10.1007/s12298-019-00662-8
PubMed:
31168238
PubMed Central:
PMC6522623

28. Ancient olive trees as a source of olive oils rich in phenolic compounds

Author:
Nuno Rodrigues; Susana Casal; Teresa Pinho; António M. Peres; Albino Bento; Paula Baptista; José Alberto Pereira
Source:
Food chemistry 2019 v.276 pp. 231-239
ISSN:
0308-8146
Subject:
Olea europaea; breeding; crop year; discriminant analysis; olive oil; phenolic compounds; principal component analysis; secoiridoids; sensory properties
Abstract:
... Olive oil phenolic compounds are receiving increased attention due to its influence on sensory characteristics and to scientific evidences of positive health effects. In this work, 28 ancient olive trees were selected and, during four consecutive seasons (2014–2017), oils were extracted and their phenolic fraction characterized. Hydroxytyrosol and tyrosol secoiridoids were the predominant groups, ...
DOI:
10.1016/j.foodchem.2018.09.106

29. Annual Variability of Wing Morphology in Culex sitiens Wiedemann (Diptera, Culicidae) Mosquito Vectors from the Coastal Area of Samut Songkhram Province, Thailand

Author:
Tanawat Chaiphongpachara; Sedthapong Laojun
Source:
Journal of parasitology research 2019 v.2019 pp. -
ISSN:
2090-0031
Subject:
Culex sitiens; coasts; discriminant analysis; dry ice; ecology; environmental factors; geometry; human diseases; insect vectors; morphometry; mosquito control; multivariate analysis; rain; wings; Thailand
Abstract:
... Culex sitiens Wiedemann (Diptera, Culicidae) is a mosquito vector that is found in coastal areas. Effective control of mosquitoes requires knowledge of the biology, ecology, and behavior of the vector as well as of various other aspects, including its morphology. Currently, variations in the wing size and shape of coastal Cx. sitiens have not been described. Here, morphological changes were studie ...
DOI:
10.1155/2019/3978965
PubMed:
30941205
PubMed Central:
PMC6420999

30. Anti-HIV-1 activity of quinic acid isolated from Helichrysum mimetes using NMR-based metabolomics and computational analysis

Author:
S.E. Yazdi; G. Prinsloo; H.M. Heyman; C.B. Oosthuizen; T. Klimkait; J.J.M. Meyer
Source:
South African journal of botany 2019 v.126 pp. 328-339
ISSN:
0254-6299
Subject:
Helichrysum; Human immunodeficiency virus 1; RNA-directed DNA polymerase; acetone; aerial parts; antiviral properties; binding sites; bioassays; carbohydrates; computer simulation; discriminant analysis; doxorubicin; hexane; immunosuppression; infectious diseases; inhibitory concentration 50; mechanism of action; metabolomics; methylene chloride; models; moieties; nuclear magnetic resonance spectroscopy; principal component analysis; quinic acid; solvents; traditional medicine; viruses
Abstract:
... Helichrysum species are widely used in traditional medicine with potential against infectious diseases. Extraction of the aerial parts of 32 Helichrysum species was done using polar (methanol:water (1:1)) and non-polar (hexane, dichloromethane and acetone) solvent systems. Anti-human immunodeficiency virus (HIV) bioassays revealed that polar extracts of H. mimetes and H. chrysargyrum (2.5 μg/mL), ...
DOI:
10.1016/j.sajb.2019.04.023

31. Antimicrobial peptide hybrid fluorescent protein based sensor array discriminate ten most frequent clinic isolates

Author:
Xiaobo Fan; Wei Xu; Jinsong Han; Xinglu Jiang; Michael Wink; Guoqiu Wu
Source:
Biochimica et biophysica acta 2019 v.1863 no.6 pp. 1158-1166
ISSN:
0304-4165
Subject:
Escherichia coli; antimicrobial peptides; antimicrobial properties; antimicrobial proteins; bacteria; bacterial growth; buffers; calcium; cell membranes; culture media; discriminant analysis; green fluorescent protein; ions; lipopolysaccharides; minimum inhibitory concentration; quartz crystal microbalance
Abstract:
... Antimicrobial peptides killed bacteria through intercalating into the bacterial membrane. Their antimicrobial efficiencies varied in bacterial species and were affected by ion strength in the culture medium. A recombinant IGP protein consisted of an antimicrobial peptide, Ib-AMP4 fused with the Green Fluorescent Protein was expressed from E. coli cells and was found to maintain the antimicrobial a ...
DOI:
10.1016/j.bbagen.2019.04.010

32. Antioxidant activity and phenolic composition in pomegranate (Punica granatum L.) genotypes from south Italy by UHPLC–Orbitrap‐MS approach

Author:
Vita Di Stefano; Rosa Pitonzo; Maria Eugenia Novara; David Bongiorno; Serena Indelicato; Carla Gentile; Giuseppe Avellone; Rosaria Bognanni; Salvatore Scandurra; Maria Grazia Melilli
Source:
Journal of the science of food and agriculture 2019 v.99 no.3 pp. 1038-1045
ISSN:
0022-5142
Subject:
Punica granatum; anthocyanins; antioxidant activity; discriminant analysis; ferulic acid; fruits; functional foods; genotype; health promotion; polyphenols; pomegranate juice; pomegranates; spectroscopy; ultra-performance liquid chromatography; Italy
Abstract:
... BACKGROUND: Pomegranate fruits are a rich source of polyphenols with numerous health‐promoting effects. Pomegranate juices of five genotypes (‘Mollar’, ‘Kingdom’, ‘Dente di Cavallo’, and two old populations ‘Francofonte’ and ‘Santa Tecla’) were evaluated regarding anthocyanin and non‐anthocyanin phenolic contents using ultrahigh performance liquid chromatography (UHPLC)–Orbitrap‐mass spectrometry ...
DOI:
10.1002/jsfa.9270

33. Antioxidant activity and the isolation of polyphenols and new iridoids from Chilean Gaultheria phillyreifolia and G. poeppigii berries

Author:
Daniel Mieres-Castro; Guillermo Schmeda-Hirschmann; Cristina Theoduloz; Sergio Gómez-Alonso; José Pérez-Navarro; Katherine Márquez; Felipe Jiménez-Aspee
Source:
Food chemistry 2019 v.291 pp. 167-179
ISSN:
0308-8146
Subject:
Gaultheria; anthocyanins; antioxidant activity; chlorogenic acid; countercurrent chromatography; cyanidin; delphinidin; discriminant analysis; fruits; iridoids; odors; polyphenols; quercetin; secondary metabolites; small fruits; sweetness
Abstract:
... The berries from the native Chilean Gaultheria phillyreifolia and G. poeppigii are appreciated for their sweet taste and aroma. Fruits from both species were investigated for their secondary metabolite composition and antioxidant activity. The extracts were submitted to membrane chromatography to separate anthocyanins from copigments. Four anthocyanins were isolated by counter-current chromatograp ...
DOI:
10.1016/j.foodchem.2019.04.019

34. Applicability of a pre-established set of facial proportions from frontal photographs in forensic age estimation of a Brazilian population

Author:
Carlos Eduardo Palhares Machado; Bianca Marques Santiago; Laíse Nascimento Correia Lima; Paola Sampaio Gonzales; Ademir Franco; Flávio de Barros Vidal; Inmaculada Aleman Aguilera; Marco Aurelio Guimarães
Source:
Forensic science international 2019 v.301 pp. e1
ISSN:
0379-0738
Subject:
Internet; age determination; children; crime; databases; discriminant analysis; face; females; forensic sciences; males; photographs; Brazil
Abstract:
... Child pornography on the internet is one of the crimes with highest increasing incidence worldwide. In this specific type of crime, the victim’s age has important legal implications. To overcome the lack of scientifically established protocols, European researchers explored and proposed a set of facial proportions obtained from images to estimate age. Within a validation scope, the present study a ...
DOI:
10.1016/j.forsciint.2019.05.009

35. Application of Multivariate Analysis Techniques for Selecting Soil Physical Quality Indicators: A Case Study in Long‐Term Field Experiments in Apulia (Southern Italy)

Author:
Mirko Castellini; Anna Maria Stellacci; Emanuele Barca; Massimo Iovino
Source:
Soil Science Society of America journal 2019 v.83 no.3 pp. 707-720
ISSN:
0361-5995
Subject:
agricultural soils; available water capacity; bulk density; burning; case studies; crop residue management; data collection; discriminant analysis; durum wheat; field capacity; field experimentation; growing season; long term experiments; minimum tillage; monitoring; multivariate analysis; no-tillage; plant available water; principal component analysis; soil quality; straw; uncertainty; Italy
Abstract:
... Core Ideas Soil physical quality (SPQ) on two long‐term experiments was evaluated. Relationships among five SPQ indicators (BD, PMAC, AC, PAWC and RFC) were evaluated. Two multivariate analysis techniques (PCA, SDA) were applied to select key indicators. PCA and SDA generally identified RFC as a key soil physical indicator. An optimal AC range was suggested to assess the air capacity of agricultur ...
DOI:
10.2136/sssaj2018.06.0223

36. Application of a semi-automated vocal fingerprinting approach to monitor Bornean gibbon females in an experimentally fragmented landscape in Sabah, Malaysia

Author:
Dena J. Clink; Margaret C. Crofoot; Andrew J. Marshall
Source:
Bioacoustics 2019 v.28 no.3 pp. 193-209
ISSN:
2165-0586
Subject:
Borneo; Hylobatidae; accuracy; bioacoustics; classification; data collection; discriminant analysis; extraction; females; habitat fragmentation; mammals; prediction; seasons; support vector machines; windows; Malaysia
Abstract:
... Vocal individuality has been documented in a variety of mammalian species and it has been proposed that this individuality can be used as a vocal fingerprint to monitor individuals. Here we provide and test a classification method using Mel-frequency cepstral coefficients (MFCCs) to extract features from Bornean gibbon female calls. Our method is semi-automated as it requires manual pre-processing ...
DOI:
10.1080/09524622.2018.1426042

37. Application of an olfactory system to detect and distinguish bitter chocolates with different percentages of cocoa

Author:
Behzad Nouri; Seyed Saeid Mohtasebi; Ahmad Jahanbakhshi
Source:
Journal of food process engineering 2019 v.42 no.7 pp. e13248
ISSN:
0145-8876
Subject:
chocolate; chocolate liquor; cocoa beans; cocoa butter; cocoa industry; data collection; discriminant analysis; electronic nose; experts; markets; nondestructive methods; principal component analysis; rapid methods; sugars; support vector machines
Abstract:
... Chocolate is one of the most consumed products in the world. Chocolate is a mixture of roasted cocoa beans and ultrafine particles of sugar (or without containing cocoa butter). The mixture is supplied with different percentages of cocoa in the market. In this research, the ability of an olfactory system is evaluated as a fast, nondestructive, and low‐cost method to detect bitter chocolates with d ...
DOI:
10.1111/jfpe.13248

38. Application of chemometric techniques: An innovative approach to discriminate two seaweed cultivars by physico-functional properties

Author:
Albert Linton Charles; Mochammad Amin Alamsjah
Source:
Food chemistry 2019 v.289 pp. 269-277
ISSN:
0308-8146
Subject:
Kappaphycus alvarezii; Sargassum duplicatum; bulk density; chemometrics; cluster analysis; cultivars; discriminant analysis; emulsifying properties; macroalgae; multivariate analysis; novel foods; powders; principal component analysis; product development
Abstract:
... Chemometric techniques were employed to discriminate two Indonesian seaweed cultivars (Kappaphycus alvarezii and Sargassum duplicatum) based on their physico-functional properties. Data of physico-functional properties, including emulsifying activity and bulk density, were processed using multivariate, discriminant analysis (DA), principal component analysis (PCA), and cluster analysis (CA). Signi ...
DOI:
10.1016/j.foodchem.2019.03.051

39. Application of chemometric tools for the comparison of volatile profile from raw and roasted regional and foreign almond cultivars (Prunus dulcis)

Author:
Ivo Oliveira; Ricardo Malheiro; Anne S. Meyer; José Alberto Pereira; Berta Gonçalves
Source:
Journal of food science and technology 2019 v.56 no.8 pp. 3764-3776
ISSN:
0022-1155
Subject:
Prunus dulcis; alcohols; almonds; benzaldehyde; chemometrics; cultivars; discriminant analysis; gas chromatography-mass spectrometry; headspace analysis; monitoring; off flavors; oxidation; principal component analysis; raw fruit; roasting; solid phase microextraction; volatile compounds
Abstract:
... In almonds, volatile compounds are major contributors to flavour, being scarce the current knowledge about their volatile profile. Hence, this work intended to characterize the volatile profile, using headspace solid-phase microextraction and gas chromatography–mass spectrometry, in raw and roasted almond cultivars (regional cvs. Amendoão, Bonita, Casanova, Molar and Pegarinhos and foreign cvs. Fe ...
DOI:
10.1007/s13197-019-03847-x
PubMed:
31413403
PubMed Central:
PMC6675829

40. Application of isotopic and elemental fingerprints in identifying the geographical origin of goat milk in China

Author:
Hongyan Liu; Qingyu Zhao; Xiaoqing Guo; Chaohua Tang; Xiaonan Yu; Tengfei Zhan; Yuchang Qin; Junmin Zhang
Source:
Food chemistry 2019 v.277 pp. 448-454
ISSN:
0308-8146
Subject:
barium; carbon; casein; deuterium; discriminant analysis; drinking water; farms; goat milk; lipids; milk; nickel; nitrogen; oxygen; provenance; rubidium; soil; stable isotopes; strontium; zinc; China
Abstract:
... In the study, the samples of goat milk, feed, soil and drinking water were firstly collected from nine farms of three provinces in China, the stable isotopic ratios (δ¹³C, δ¹⁵N, δ²H and δ¹⁸O) in casein, lipid of milk, feed, and drinking water and the contents of 11 elements in milk and soil were determined. Statistical analysis indicated that except the content of Zn, other variables in milk showe ...
DOI:
10.1016/j.foodchem.2018.10.144

41. Application of laser-induced backscattering imaging for predicting and classifying ripening stages of “Berangan” bananas

Author:
Nurazwin Zulkifli; Norhashila Hashim; Khalina Abdan; Marsyita Hanafi
Source:
Computers and electronics in agriculture 2019 v.160 pp. 100-107
ISSN:
0168-1699
Subject:
Musa acuminata; automation; bananas; cameras; color; diodes; discriminant analysis; image analysis; prediction; quality control; ripening; total soluble solids; wavelengths
Abstract:
... This study investigates the potential of laser light backscattering imaging (LLBI) for predicting and classifying Musa Acuminata cv. Berangan at different ripening stages. Backscattering images of Berangan bananas at various ripening stages from 2 to 7 were acquired by a charge coupled device (CCD) camera coupled with a laser diode emitting light at a wavelength of 658 nm. The grey level intensity ...
DOI:
10.1016/j.compag.2019.02.031

42. Application of morphometric measures in estimation of body weight and discrimination of Astyanax lacustris and Astyanax fasciatus

Author:
Hortência Aparecida Botelho; Aline de Assis Lago; Alisson Lucrecio da Costa; Adriano Carvalho Costa; Rafael Vilhena Reis Neto; Zoraia Silva; Fagner Machado Ribeiro; Marcos Barcellos Café; Rilke Tadeu Fonseca de Freitas
Source:
Aquaculture research 2019 v.50 no.9 pp. 2429-2436
ISSN:
1355-557X
Subject:
Astyanax fasciatus; animal organs; body weight; carcass yield; discriminant analysis; fish; morphometry; slaughter; tail
Abstract:
... The objective of this study was to verify the direct and indirect correlation between morphometric measures, ratios, body weight and yield in two lambari species Astyanax lacustris and Astyanax fasciatus and whether the discriminant analysis is capable of separating and allocating the species. We used 102 lambari yellow tail and 60 lambari red tail. The fish were weighed and submitted to the evalu ...
DOI:
10.1111/are.14196

43. Application of morphometric study to discriminate Pteridium aquilinum (L.) Kuhn subsp. pinetorum (C. N. Page & R. R. Mill 1995) J. A. Thomson in Poland

Author:
Elżbieta Zenkteler; Oskar Nowak
Source:
Biodiversity 2019 v.56 no.1 pp. 1-12
ISSN:
2080-945X
Subject:
Pteridium aquilinum; discriminant analysis; fronds; morphometry; quantitative traits; texture; Poland
Abstract:
... Pteridium aquilinum subsp. pinetorum is one of two morphologically distinct taxa of the genus Pteridium identified in Poland. In order to confirm their distinctively recognizable morphology, nine features defining each of these taxa were subjected to a morphometric analysis. These features, including taxonomic characters of vegetative structures, were measured or counted for their most comprehensi ...
DOI:
10.2478/biorc-2019-0015

44. Application of multivariate statistical analyses to ItraxTM core scanner data for the identification of deep-marine sedimentary facies: A case study in the Galician Continental Margin

Author:
A.E. López Pérez; D. Rey; V. Martins; M. Plaza-Morlote; B. Rubio
Source:
Quaternary international 2019 v.514 pp. 152-160
ISSN:
1040-6182
Subject:
barium; calcium; case studies; cluster analysis; color; data collection; discriminant analysis; iron; magnetism; manganese; marine environment; multivariate analysis; principal component analysis; sand; scanners; scanning electron microscopy
Abstract:
... The validity and usefulness of multivariate statistical tools for the facies characterization in deep-marine environments have been applied on the geochemical, sedimentological and magnetic data from a piston core extracted from the Transitional Zone in the Galician Continental Margin. The combination of geochemical profiles of Fe, Mn, Ti, Ba and Ca and magnetic susceptibility (MS) obtained using ...
DOI:
10.1016/j.quaint.2018.06.035

45. Application of otolith morphometry for the study of ontogenetic variations of Odontesthes argentinensis

Author:
Fernanda Gabriela Biolé; Roberta Callicó Fortunato; Gustavo Ariel Thompson; Alejandra Vanina Volpedo
Source:
Environmental biology of fishes 2019 v.102 no.10 pp. 1301-1310
ISSN:
0378-1909
Subject:
Odontesthes argentinensis; analysis of variance; coasts; discriminant analysis; fish; fish communities; geometry; habitats; morphometry; ontogeny; otoliths; sexual maturity; Atlantic Ocean
Abstract:
... The study of otolith morphometry is a tool widely used in numerous studies of fish populations (fish stocks, taxonomic, ecological, ontogeny, among others). The aim of this study was to detect ontogenetic variations in the otolith of Odontesthes argentinensis through the application of traditional and geometric morphometry and the association of these variations with ecological and trophic habits ...
DOI:
10.1007/s10641-019-00908-0

46. Assessing Treatment Response and Prognosis by Serum and Tissue Metabolomics in Breast Cancer Patients

Author:
Julia Debik; Leslie R. Euceda; Steinar Lundgren; Hedda von der Lippe Gythfeldt; Øystein Garred; Elin Borgen; Olav Engebraaten; Tone F. Bathen; Guro F. Giskeødegård
Source:
Journal of proteome research 2019 v.18 no.10 pp. 3649-3660
ISSN:
1535-3907
Subject:
biopsy; blood serum; breast neoplasms; discriminant analysis; drug therapy; least squares; lipids; metabolites; metabolomics; monitoring; nuclear magnetic resonance spectroscopy; patients; prediction; prognosis; proteome
Abstract:
... Patients with locally advanced breast cancer have a worse prognosis compared to patients with localized tumors and require neoadjuvant treatment before surgery. The aim of this study was to characterize the systemic metabolic effect of neoadjuvant chemotherapy in patients with large primary breast cancers and to relate these changes to treatment response and long-term survival. This study included ...
DOI:
10.1021/acs.jproteome.9b00316

47. Assessing Waste Cooking Oils for the Production of Quality Biodiesel Using an Electronic Nose and a Stochastic Model

Author:
Adriano F. Siqueira; Igor G. Vidigal; Mariana P. Melo; Domingos S. Giordani; Pollyanna S. Batista; Ana L. G. Ferreira
Source:
Energy & fuels 2019 v.33 no.4 pp. 3221-3226
ISSN:
1520-5029
Subject:
acidity; biodiesel; discriminant analysis; economic feasibility; electronic nose; frying oil; fuel production; iodine value; kitchen waste; laboratory experimentation; lipids; prediction; raw materials; stochastic processes; viscosity; Brazil
Abstract:
... Around 1% of waste cooking oil (WCO) is currently recycled to make biodiesel in Brazil, mainly because used oils can acquire physicochemical characteristics that render them unsuitable as raw materials. To make biofuel production from waste oils and fats more efficient and economically feasible, it is important to develop simple, rapid, and low-cost methods for testing the quality of WCOs. With th ...
DOI:
10.1021/acs.energyfuels.8b04230

48. Assessing fish authenticity by direct analysis in real time-high resolution mass spectrometry and multivariate analysis: discrimination between wild-type and farmed salmon

Author:
Giuseppina M. Fiorino; Ilario Losito; Elisabetta De Angelis; Marco Arlorio; Antonio F. Logrieco; Linda Monaci
Source:
Food research international 2019 v.116 pp. 1258-1265
ISSN:
0963-9969
Subject:
Salmo salar; aquaculture; carbon; commercialization; data collection; discriminant analysis; farmed fish; fatty acids; fish fillets; markets; mass spectrometry; multivariate analysis; oxidation; principal component analysis; provenance; salmon; seafood consumption; seafoods; Canada; Chile; Norway
Abstract:
... The constant increase in seafood consumption worldwide has led to a parallel growth of the incidence of products obtained by aquaculture on the market, but also of the fraudulent commercialization of farmed products as wild-type ones. A careful characterization of the lipid component of seafood products based on chromatography-mass spectrometry techniques has been reported as a promising approach ...
DOI:
10.1016/j.foodres.2018.10.013

49. Assessing sediment yield and sources using fingerprinting method in a representative catchment of the Loess Plateau, China

Author:
Peng Tian; Zhengfeng An; Guangju Zhao; Peng Gao; Pengfei Li; Wenyi Sun; Xingmin Mu
Source:
Environmental earth sciences 2019 v.78 no.8 pp. 261
ISSN:
1866-6280
Subject:
arable soils; cesium; discriminant analysis; lead; radionuclides; rain; sandstone; sediment yield; sediments; soil properties; storms; water conservation; watershed management; watersheds; China
Abstract:
... Quantitative assessment of sediment yield and sources is of great importance for future soil and water conservation and watershed management in erosion-prone areas. This study investigated sediment yield and sources by using a simple fingerprinting method in a dam-controlled watershed on the northern Loess Plateau. The sampling sediment profile exhibited 24 flood couplets corresponding to rainfall ...
DOI:
10.1007/s12665-019-8240-1

50. Assessing the Key Environmental Factors in the Formation of Phytoplankton Spatial Structure in Large Subarctic Rivers (East Siberia)

Author:
V. A. Gabyshev; O. I. Gabysheva
Source:
Water resources 2019 v.46 no.4 pp. 563-570
ISSN:
0097-8078
Subject:
climate; discriminant analysis; environmental factors; growing season; hydrochemistry; morphometry; physicochemical properties; phytoplankton; rivers; watersheds; Siberia
Abstract:
... Data of 2000–2011 on phytoplankton of 12 large subarctic rivers, their hydrochemical, hydrological, and morphometric parameters and the climatic characteristics of their drainage basins have been analyzed with the use of step-wise discriminant analysis and clusterization of observations to establish that the formation of phytoplankton spatial structure in rivers in the northeastern Siberia is gove ...
DOI:
10.1134/S0097807819040092

51. Assessing the contribution of hydroxylation species in the photochemical transformation of primidone (pharmaceutical)

Author:
Yingjie Liu; Shuwen Yan; Lushi Lian; Jianzhong Ma; Huaxi Zhou; Weihua Song
Source:
Science of the total environment 2019 v.696 pp. 133826
ISSN:
0048-9697
Subject:
discriminant analysis; dissolved organic matter; dissolved oxygen; hydroxyl radicals; hydroxylation; models; personal care products; photolysis; radiolysis; singlet oxygen; solar radiation
Abstract:
... Pharmaceutical and personal care products (PPCPs) are a group of emerging contaminants that have frequently been detected in aqueous environments. Phototransformation driven by solar irradiation is one of the most important natural processes for the elimination of PPCPs. In this study, primidone (PMD) was chosen as a model “photorefractory” compound. A series of experiments were conducted to asses ...
DOI:
10.1016/j.scitotenv.2019.133826

52. Assessing the effect of season, montanera length and sampling location on Iberian pig fat by compositional data analysis and standard multivariate statistics

Author:
Antonio Garrido-Fernández; Manuel León-Camacho
Source:
Food chemistry 2019 v.295 pp. 377-386
ISSN:
0308-8146
Subject:
Iberian (swine breed); discriminant analysis; fatty acids; multivariate analysis; swine
Abstract:
... The work studies the effect of season, montanera length, and sampling location on the Iberian pig fat, using compositional data (CoDa) analysis and standard statistics. CoDa variation array and logratios involving C18:3: (C18:3/C17:1), (C18:3/C20:0), and (C18:3/18:0) as well as the ilr balances (coordinates), based on C18:3, C17:1, and C20:0, showed the highest variances. Discriminant Analysis (DA ...
DOI:
10.1016/j.foodchem.2019.05.123

53. Assessment and improvement of the Cloud Emission and Scattering Index (CESI) – an algorithm for cirrus detection

Author:
Liwen Wang; Miao Tian; Youfei Zheng
Source:
International journal of remote sensing 2019 v.40 no.14 pp. 5366-5387
ISSN:
1366-5901
Subject:
algorithms; discriminant analysis; image analysis; latitude; probability; remote sensing; seasonal variation; summer; Australia; China; Sahara Desert; Saudi Arabia
Abstract:
... This study evaluates and improves the cirrus detection of the middle and low peak Weighting Function (WF) Cloud Emission and Scattering Index (CESI) by using the Visible Infrared Imaging Radiometer Suite (VIIRS) cloud mask product. Results show that CESI-3 (peak WF about 890 hPa) accurately detect cirrus with the Probability of detection (POD) value reaching 0.69 during both at day and nighttimes. ...
DOI:
10.1080/01431161.2019.1579938

54. Assessment and interpretation of river water quality in Little Akaki River using multivariate statistical techniques

Author:
M. Yilma; Z. Kiflie; A. Windsperger; N. Gessese
Source:
International journal of environmental science and technology 2019 v.16 no.7 pp. 3707-3720
ISSN:
1735-1472
Subject:
ammonia; biochemical oxygen demand; chemical oxygen demand; cluster analysis; discriminant analysis; electrical conductivity; factor analysis; land use; monitoring; nitrates; nitrites; phosphates; principal component analysis; river water; rivers; sewage; total nitrogen; total phosphorus; total suspended solids; waste disposal; water quality; Ethiopia
Abstract:
... Indiscriminant waste disposal is limiting the usability of the Little Akaki River in Addis Ababa, Ethiopia. Besides, there are inadequate comprehensive studies on the river principally due to insufficient research fund. Therefore, in this study, water quality investigation that is both regular and economical is sought. In October and November 2015, twenty-seven locations were sampled from the rive ...
DOI:
10.1007/s13762-018-2000-8

55. Assessment of Genetic Diversity of Tea Germplasm for Its Management and Sustainable Use in Korea Genebank

Author:
Kyung Jun Lee; Jung-Ro Lee; Raveendar Sebastin; Myoung-Jae Shin; Seong-Hoon Kim; Gyu-Taek Cho; Do Yoon Hyun
Source:
Forests 2019 v.10 no.9 pp. -
ISSN:
1999-4907
Subject:
Camellia sinensis; alleles; beverages; cultivars; discriminant analysis; gene banks; genetic variation; germplasm; microsatellite repeats; new variety; plant breeding; population structure; tea; variance; South America; South Korea
Abstract:
... Tea (Camellia sinensis (L.) O. Kuntze) is cultivated in many developing Asian, African, and South American countries, and is the most widely consumed beverage in the world. It is of critical importance to understand the genetic diversity and population structure of tea germplasm for effective collection, conservation, and utilization. In this study, 410 tea accessions collected from South Korea we ...
DOI:
10.3390/f10090780

56. Assessment of the Standardized Precipitation and Evaporation Index (SPEI) as a Potential Management Tool for Grasslands

Author:
Patrick J. Starks; Jean L. Steiner; James P. S. Neel; Kenneth E. Turner; Brian K. Northup; Prasanna H. Gowda; Michael A. Brown
Source:
Agronomy 2019 v.9 no.5 pp. -
ISSN:
2073-4395
Subject:
Agricultural Research Service; algorithms; biomass production; climate; data collection; decision making; discriminant analysis; drought; evaporation; forage; forage production; grasslands; grazing; grazing lands; livestock; livestock husbandry; neural networks; pastures; prediction; trees; vegetable crops
Abstract:
... Early warning of detrimental weather and climate (particularly drought) on forage production would allow for tactical decision-making for the management of pastures, supplemental feed/forage resources, and livestock. The standardized precipitation and evaporation index (SPEI) has been shown to be correlated with production of various cereal and vegetable crops, and with above-ground tree mass. Its ...
DOI:
10.3390/agronomy9050235

57. Assessment of the optimal spectral bands for designing a sensor for vineyard disease detection: the case of ‘Flavescence dorée’

Author:
H. Al-Saddik; J. C. Simon; F. Cointault
Source:
Precision agriculture 2019 v.20 no.2 pp. 398-422
ISSN:
1385-2256
Subject:
Vitis; cameras; crops; discriminant analysis; disease detection; leaves; models; monitoring; phytoplasmal diseases; spectral analysis; spectroscopy; support vector machines; unmanned aerial vehicles; vegetation index; vineyards; France
Abstract:
... Disease detection and control is one of the main objectives of vineyard research in France. Manual monitoring of diseases is a time consuming operation especially when fields are large. Current research studies aim to develop automatic in-field systems to detect diseases. This study investigated the optimal spectral bands for the design of a dedicated high-resolution multispectral camera embedded ...
DOI:
10.1007/s11119-018-9594-1

58. Assuring food safety and traceability of polished rice from different production regions in China and Southeast Asia using chemometric models

Author:
Zhi Liu; Weixing Zhang; Yongzhi Zhang; Tianjin Chen; Shengzhi Shao; Li Zhou; Yuwei Yuan; Tongzhou Xie; Karyne M. Rogers
Source:
Food control 2019 v.99 pp. 1-10
ISSN:
0956-7135
Subject:
cadmium; calcium; carbon; chemometrics; discriminant analysis; food safety; fraud; iron; mass spectrometry; models; nitrogen; oxygen; prediction; principal component analysis; provenance; rice; rubidium; silver; sodium; stable isotopes; traceability; zinc; China; Malaysia; Thailand
Abstract:
... A novel strategy combining elemental analysis-isotopic ratio mass spectrometry (EA-IRMS) and inductively plasma coupled mass spectrometry (ICP-MS) analysis with chemometric data-processing was applied to differentiate polished rice from different growing regions in China with rice imported from Southeast Asia (Thailand and Malaysia). Seven stable isotope ratios (i.e. δ¹³C, δ¹⁵N, δ²H, δ¹⁸O, ⁸⁷/⁸⁶Sr ...
DOI:
10.1016/j.foodcont.2018.12.011

59. Austrian Pinot blanc wines: Typicity, wine styles and the influence of different oenological decisions on the volatile profile of wines

Author:
C. Philipp; S. Sari; P. Eder; E. Patzl-Fischerleitner; R. Eder
Source:
BIO web of conferences 2019 v.15 pp. 02005
ISSN:
2117-4458
Subject:
Citrus; apples; breads; discriminant analysis; grapes; guidelines; honey; odors; pears; provenance; questionnaires; quinces; volatile compounds; winemaking; wines; wood; Austria
Abstract:
... Pinot blanc is found in all wine regions of Austria. However, it plays an economically subordinate role compared to the most important white grape variety, Grüner Veltliner. The concept of wine typicity and terroir is that the geographical origin and oenological practices, along with the grape variety, make an important contribution to the final expression of the finished wine. The purpose of this ...
DOI:
10.1051/bioconf/20191502005

60. Authentication of European sea bass according to production method and geographical origin by light stable isotope ratio and rare earth elements analyses combined with chemometrics

Author:
Maria Olga Varrà; Sergio Ghidini; Emanuela Zanardi; Anna Badiani; Adriana Ianieri
Source:
Italian journal of food safety 2019 v.8 no.1 pp. -
ISSN:
2239-7132
Subject:
Dicentrarchus labrax; basins; bass; carbon; chemometrics; data collection; discriminant analysis; erbium; europium; holmium; lanthanum; lutetium; nitrogen; principal component analysis; provenance; stable isotopes; terbium; Mediterranean Sea
Abstract:
... In this work, stable isotope ratio (SIR) and rare earth elements (REEs) analyses, combined with multivariate data elaboration, were used to explore the possibility to authenticate European sea bass (Dicentrarchus labrax L.) according to: i) production method (wild or farmed specimens); ii) geographical origin (Western, Central or Eastern Mediterranean Sea). The dataset under investigation included ...
DOI:
10.4081/ijfs.2019.7872
PubMed:
31008086
PubMed Central:
PMC6452092

61. Authentication of Tokaj Wine (Hungaricum) with the Electronic Tongue and Near Infrared Spectroscopy

Author:
John‐Lewis Z. Zaukuu; János Soós; Zsanett Bodor; József Felföldi; Ildikó Magyar; Zoltan Kovacs
Source:
Journal of food science 2019 v.84 no.12 pp. 3437-3444
ISSN:
0022-1147
Subject:
adulterated products; chemometrics; cost effectiveness; discriminant analysis; electronic tongue; grape must; grapes; least squares; near-infrared spectroscopy; principal component analysis; sensory properties; small fruits; spectrometers; sugar content; water uptake; wine quality; winemaking; wines
Abstract:
... Tokaj wines (Hungaricum) are botrytized wines acknowledged for the unique organoleptic properties bestowed by botrytized grape berries during production. Excluding these berries during wine production or manipulating the sugar content of low‐grade wines to imitate high‐grade wines are some recent suspicious activities that threaten the wine quality. Advanced methods such as spectroscopy and sensor ...
DOI:
10.1111/1750-3841.14956

62. Authentication of black cohosh (Actaea racemosa) dietary supplements based on chemometric evaluation of hydroxycinnamic acid esters and hydroxycinnamic acid amides

Author:
Ping Geng; Pei Chen; Jianghao Sun; Joe-Ann H. McCoy; James M. Harnly
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.27 pp. 7147-7156
ISSN:
1618-2642
Subject:
Actaea racemosa; amides; chemometrics; coumaric acids; data collection; dietary supplements; discriminant analysis; drug formulations; esters; least squares; models; monitoring; ultra-performance liquid chromatography
Abstract:
... Ester and amide derivatives of hydroxycinnamic acids are found in black cohosh (Actaea racemosa) and other Actaea plants. These two compound groups were evaluated for authentication of black cohosh dietary supplements. The hydroxycinnamic acid esters (HCAE) were profiled by ultra-performance liquid chromatography-photodiode array detection (UPLC-PDA). The hydroxycinnamic acid amides (HCAA) were ac ...
DOI:
10.1007/s00216-019-02082-9

63. Authentication of farmed and wild european eel (Anguilla anguilla) by fatty acid profile and carbon and nitrogen isotopic analyses

Author:
Mauro Vasconi; Annalaura Lopez; Cristina Galimberti; José Manuel Moreno Rojas; José Manuel Muñoz Redondo; Federica Bellagamba; Vittorio Maria Moretti
Source:
Food control 2019 v.102 pp. 112-121
ISSN:
0956-7135
Subject:
Anguilla anguilla; biometry; carbon; discriminant analysis; eating habits; eel; farms; fatty acid composition; isotope labeling; least squares; lipids; markets; muscles; nitrogen; principal component analysis; protein content; provenance; proximate composition; rearing; stable isotopes; variance; Denmark; Italy
Abstract:
... We determined fatty acid profile and protein carbon and nitrogen isotopic composition in muscle of wild and farmed eels, in order to discriminate the geographical origin of fish and their dietary habits. The samples were divided into groups according to the farm origin (Italy, Denmark and Netherland), the market size (capitoni and buratelli) and the farming system (pond, RAS, lagoon and wild). Bio ...
DOI:
10.1016/j.foodcont.2019.03.004

64. Automated discrimination of deveined shrimps based on grayscale image parameters

Author:
Nawaporn Thanasarn; Supapan Chaiprapat; Kriangkrai Waiyakan; Kunlapat Thongkaew
Source:
Journal of food process engineering 2019 v.42 no.4 pp. e13041
ISSN:
0145-8876
Subject:
abdomen; agricultural products; automation; digestive tract; discriminant analysis; equipment; ergonomics; fish industry; image analysis; imports; issues and policy; labor force; markets; sand; shrimp; support vector machines; United States
Abstract:
... The “Vein” in a shrimp is its digestive tract filled with grit, sand, and sediments stretching along the back of the abdomen. In most shrimp market forms, presence of vein is highly restricted and limited according to the U.S. standard for imports. This research aims to develop an image‐based approach for detection of improperly deveined shrimps. Two hundred shrimp images were subjected to a seque ...
DOI:
10.1111/jfpe.13041

65. Background correction method for improving the automated detection of radioisotopes from airborne gamma-ray surveys

Author:
Brian W. Dess; Robert T. Kroutil; Gary W. Small
Source:
Journal of environmental radioactivity 2019 v.198 pp. 104-116
ISSN:
0265-931X
Subject:
altitude; automation; cesium; cobalt; data collection; databases; discriminant analysis; environmental protection; gamma radiation; models; photometry; radioactivity; radionuclides; regression analysis; surveys
Abstract:
... An altitude-based background correction strategy was developed for use in the application of pattern recognition methods to the classification of gamma-ray spectra collected during airborne surveys. Application of this methodology helped to suppress the background spectral variation that serves to obscure the photopeaks associated with low levels of gamma-ray emission. The correction method was im ...
DOI:
10.1016/j.jenvrad.2018.12.022

66. Bacterial community assemblages in sediments under high anthropogenic pressure at Ichkeul Lake/Bizerte Lagoon hydrological system, Tunisia

Author:
Fida Ben Salem; Olfa Ben Said; Cristiana Cravo-Laureau; Ezzeddine Mahmoudi; Noëlle Bru; Mathilde Monperrus; Robert Duran
Source:
Environmental pollution 2019 v.252 pp. 644-656
ISSN:
0269-7491
Subject:
aquatic ecosystems; assets; bacterial communities; bioremediation; coasts; discriminant analysis; hydrology; lakes; monitoring; niches; pesticides; pollutants; pollution; polycyclic aromatic hydrocarbons; sediments; tin; Tunisia
Abstract:
... Bacterial communities inhabiting sediments in coastal areas endure the effect of strong anthropogenic pressure characterized by the presence of multiple contaminants. Understanding the effect of pollutants on the organization of bacterial communities is of paramount importance in order to unravel bacterial assemblages colonizing specific ecological niches. Here, chemical and molecular approaches w ...
DOI:
10.1016/j.envpol.2019.05.146

67. Basal Diet Determined Long-Term Composition of the Gut Microbiome and Mouse Phenotype to a Greater Extent than Fecal Microbiome Transfer from Lean or Obese Human Donors

Author:
Daphne M. Rodriguez; Abby D. Benninghoff; Niklas D.J. Aardema; Sumira Phatak; Korry J. Hintze
Source:
Nutrients 2019 v.11 no.7 pp. -
ISSN:
2072-6643
Subject:
Western diets; antibiotics; body composition; discriminant analysis; eating habits; experimental diets; glucose; high fat diet; humans; intestinal microorganisms; metabolic diseases; metabolism; mice; microbiome; obesity; phenotype; species diversity
Abstract:
... The Western dietary pattern can alter the gut microbiome and cause obesity and metabolic disorders. To examine the interactions between diet, the microbiome, and obesity, we transplanted gut microbiota from lean or obese human donors into mice fed one of three diets for 22 weeks: (1) a control AIN93G diet; (2) the total Western diet (TWD), which mimics the American diet; or (3) a 45% high-fat diet ...
DOI:
10.3390/nu11071630
PubMed:
31319545
PubMed Central:
PMC6682898

68. Behavioral and morphological evidence of an Allen's × Rufous hummingbird (Selasphorus sasin × S. rufus) hybrid zone in southern Oregon and northern California

Author:
Brian M. Myers; David T. Rankin; Kevin J. Burns; Christopher J. Clark
Source:
Auk 2019 v.136 no.4 pp. 1-24
ISSN:
1938-4254
Subject:
Selasphorus; breeding; breeds; coasts; courtship; discriminant analysis; females; hummingbirds; hybrids; males; phenotype; sexual selection; Alaska; California; Oregon
Abstract:
... Allen's (Selasphorus sasin) and Rufous (S. rufus) hummingbird have long been suspected to hybridize, and potentially form a hybrid zone where their ranges overlap in southern Oregon. Migratory Allen's Hummingbird (S. s. sasin) breeds along a narrow strip of the California coast up to the Oregon border, while Rufous Hummingbird breeds from southern Oregon to Alaska. Analysis of behavioral and morph ...
DOI:
10.1093/auk/ukz049

69. The Behaviour and Vocalisations of Captive Geoffroy's Horseshoe Bats, Rhinolophus clivosus (Chiroptera: Rhinolophidae)

Author:
Hana Petersen; Nikita Finger; Anna Bastian; David Jacobs
Source:
Acta chiropterologica 2019 v.20 no.2 pp. 439-453
ISSN:
1733-5329
Subject:
Rhinolophus; acoustics; animals; discriminant analysis; echolocation; experimental design; foraging; social behavior; social structure
Abstract:
... Acoustic signals are important to the biology of animals, mediating crucial activities such as social interactions (communication) as well as orientation and foraging (echolocation). Many signals used in communication are vocal, which are especially important in nocturnal animals such as bats where social interactions occur in darkness. Despite this, little is known about the social calls and beha ...
DOI:
10.3161/15081109ACC2018.20.2.014

70. Biogenic amines profile in red wines regarding aging and storage conditions

Author:
Mónica Palomino-Vasco; María Isabel Rodríguez-Cáceres; Nielene Mora-Diez; Rosario Pardo-Botello; María Isabel Acedo-Valenzuela
Source:
Journal of food composition and analysis 2019 pp. -
ISSN:
0889-1575
Subject:
biogenic amines; chromatography; cluster analysis; derivatization; discriminant analysis; fluorescence; principal component analysis; red wines; storage temperature; storage time; wine aging
Abstract:
... The determination and quantification of eight biogenic amines in red wines without sample clean-up has been carried out by an ultra-high performance chromatographic method with fluorescent detection based on the o-phthaldialdehyde derivatization reaction. In these conditions, several monovarietal ‘Tempranillo’ wines (young, oak and aged ones) have been analyzed and the total concentrations of biog ...
DOI:
10.1016/j.jfca.2019.103295

71. Biological ball filters regulate bacterial communities in marron (Cherax cainii) culture system

Author:
M.J. Foysal; R. Fotedar; S.K. Gupta; M.R. Chaklader
Source:
Letters in applied microbiology 2019 v.68 no.5 pp. 455-463
ISSN:
0266-8254
Subject:
Aquabacterium; Cherax; Corynebacterium; Firmicutes; Haliscomenobacter; Vibrio; ammonia; aquaculture; aquaculture tanks; bacteria; bacterial communities; beneficial microorganisms; discriminant analysis; dissolved oxygen; filters; nitrates; nitrites; organic compounds; pH; phosphorus; rearing; temperature; water quality
Abstract:
... This study aimed to characterize the bacterial communities in rearing water treated with commercial plastic biological ball filters named as Bio‐ball in marron culture for 60 days. Inclusion of Bio‐ball in the aquaculture tanks showed improvement in water quality parameters and enrichment of bacterial communities in terms of operational taxonomic units. The water treated with Bio‐ball showed signi ...
DOI:
10.1111/lam.13125

72. Bourbon and Rye Whiskeys Are Legally Distinct but Are Not Discriminated by Sensory Descriptive Analysis

Author:
Jacob Lahne; Hervé Abdi; Thomas Collins; Hildegarde Heymann
Source:
Journal of food science 2019 v.84 no.3 pp. 629-639
ISSN:
0022-1147
Subject:
bottling; corn; discriminant analysis; flavor; mouthfeel; rye; sensory evaluation; taste; whisky
Abstract:
... We present a Descriptive Analysis (DA) of a large representative sample (24 whiskeys) of two legally distinct types of American whiskeys: bourbon and rye whiskey (respectively distilled from a fermented “mashbill” of at least 51% corn or rye). We wanted to determine whether a trained panel could find sensory differences between these two products. We used standard DA: 11 judges were trained for 10 ...
DOI:
10.1111/1750-3841.14468

73. Bovine milk microbiome: a more complex issue than expected

Author:
Suvi Taponen; David McGuinness; Heidi Hiitiö; Heli Simojoki; Ruth Zadoks; Satu Pyörälä
Source:
Veterinary research 2019 v.50 no.1 pp. 44
ISSN:
1297-9716
Subject:
DNA; Methylobacterium; Staphylococcus aureus; Streptococcus uberis; bacteria; cattle; dairy herds; data collection; discriminant analysis; genes; high-throughput nucleotide sequencing; microbiome; milk; pathogens; polymerase chain reaction; ribosomal RNA; species richness; veterinary medicine
Abstract:
... The aim of this study was to analyze bacterial profiles of bovine mastitic milk samples and samples from healthy quarters using Next Generation Sequencing of amplicons from 16S rRNA genes and to compare results with microbiological results by PCR assays of the same samples. A total of 49 samples were collected from one single dairy herd during the same day. The samples were divided in two sample s ...
DOI:
10.1186/s13567-019-0662-y
PubMed:
31171032
PubMed Central:
PMC6555717

74. Can morphological characters be used to identify the pond-reared offspring of wild Chinese mitten crabs, Eriocheir sinensis, from different basins?

Author:
Xiaodong Jiang; Xugan Wu; Haining Wang; Yuhong Yang; Yongxu Cheng
Source:
Crustaceana v.92 no.8 pp. 957-978
ISSN:
0011-216X
Subject:
Eriocheir sinensis; basins; cluster analysis; crabs; discriminant analysis; principal component analysis; progeny; rivers; Yangtze River
Abstract:
... Although morphology is always used to distinguish wild Chinese mitten crab (Eriocheir sinensis) populations, whether morphology could be used to identify the pond-reared offspring of wild E. sinensis populations has remained unclear. This study was undertaken to examine the morphological difference of wild E. sinensis (G0) from the Yangtze River (YR), Huang River (HR) and Liao River (LR) as well a ...
DOI:
10.1163/15685403-00003918

75. Candidate quantitative trait loci and genes for fiber quality in Gossypium hirsutum L. detected using single- and multi-locus association mapping

Author:
Yanchao Yuan; Haijun Zhang; Liyuan Wang; Huixian Xing; Lili Mao; Jincai Tao; Xianlin Wang; Wei Feng; Qingkang Wang; Haoran Wang; Ze Wei; Guihua Zhang; Xian-Liang Song; Xue-Zhen Sun
Source:
Industrial crops and products 2019 v.134 pp. 356-369
ISSN:
0926-6690
Subject:
Gossypium hirsutum; breeding; chromosome mapping; cottonseed; discriminant analysis; fiber quality; gene expression; genes; genetic variation; genome-wide association study; loci; models; ovules; pleiotropy; quantitative polymerase chain reaction; quantitative trait loci; single nucleotide polymorphism; textile industry
Abstract:
... Upland cotton makes an important contribution to natural fiber production worldwide. Given the necessity to high quality fiber required in the textile industry, the genomic variation of diverse accessions and the loci underpinning fiber quality should be extensively investigated. Here, a panel of 196 upland cottons and 41,815 single-nucleotide polymorphism (SNP) markers were examined for detection ...
DOI:
10.1016/j.indcrop.2019.04.010

76. Carbon dot-based colorimetric sensor array for the discrimination of different water samples

Author:
Masoud Shariati-Rad; Zahra Ghorbani
Source:
Analytical methods 2019 v.11 no.43 pp. 5584-5590
ISSN:
1759-9679
Subject:
cameras; carbon quantum dots; chemometrics; cluster analysis; color; colorimetry; discriminant analysis; heavy metals; metal ions; principal component analysis
Abstract:
... Herein, a colorimetric sensor array has been introduced which uses carbon dots (CDs) to distinguish between different water samples. The basis of the method is that CDs interact differently with heavy metal ions in the presence of different water samples. The color change resulting from this interaction is recorded by a digital camera, and RGB values are analyzed by unsupervised and supervised che ...
DOI:
10.1039/c9ay01439j

77. Carcass Yields and Physicochemical Meat Quality Characteristics of Namibian Springbok (Antidorcas marsupialis) as Influenced by Muscle, Sex and Age1

Author:
Louwrens C. Hoffman; Diana L. van Schalkwyk; Nina M. Muller; Berndt J. van Rensburg; Kenneth W. McMillin
Source:
Meat and muscle biology 2019 v.3 no.1 pp. 344-355
ISSN:
2575-985X
Subject:
Antidorcas marsupialis; adults; animals; carcass yield; cooking quality; discriminant analysis; dressing percentage; females; lipid content; longissimus muscle; males; meat; meat quality; protein content; shear stress; slaughter weight
Abstract:
... This investigation determined the carcass yields of Namibian springbok and compared the physicochemical meat quality characteristics of 6 different muscles (biceps femoris, infraspinatus, Longissimus thoracis et lumborum, semimembranosus, semitendinosus, and supraspinatus) from different sex and age groups. Although the adult male slaughter weights (40.44 ± 1.88 kg) did not differ from that of the ...
DOI:
10.22175/mmb2019.05.0016

78. Cardiovascular Disease Protective Effect of Allicin Through Gut Microbiota Modulation (FS07-08-19)

Author:
Chen Pei Chen; Wei-Kai Wu; Suraphan Panyod; Ming-Shiang Wu; Sheen Lee-Yan
Source:
Current developments in nutrition 2019 v.3 no.Supplement_1 pp. -
ISSN:
2475-2991
Subject:
Lachnospiraceae; allicin; animal models; antioxidants; atherosclerosis; bioactive compounds; blood serum; carnitine; cholesteremic effect; digestive system; discriminant analysis; feces; garlic; intestinal microorganisms; liquid chromatography; males; mass spectrometry; meat consumption; metabolites; mice; nitrogen oxides; nutrition risk assessment; protective effect; red meat; ribosomal DNA; staining; trimethylamine
Abstract:
... Red meat consumption can promote atherosclerosis since the gut microbiota can metabolize L-carnitine from meat into trimethylamine N-oxide (TMAO) which is a causative risk for cardiovascular disease. Garlic has long been associated with health benefits. Allicin is a major bioactive compound typically found in blend fresh garlic. It possesses the antibacterial, anti-oxidant, and cholesterol-lowerin ...
DOI:
10.1093/cdn/nzz040.FS07-08-19

79. Cerebral hunger maps in rodents and humans by diffusion weighted MRI

Author:
Ania Benítez; Blanca Lizarbe; Irene Guadilla; Pilar López-Larrubia; Luis F. Lago-Fernández; Sebastián Cerdán; Manuel Sánchez-Montañés
Source:
Appetite 2019 v.142 pp. 104333
ISSN:
0195-6663
Subject:
data collection; diffusivity; discriminant analysis; fasting; human nutrition; hunger; hypothalamus; image analysis; magnetic resonance imaging; mice; rats
Abstract:
... We design, implement and validate a novel image processing strategy to obtain in vivo maps of hunger stimulation in the brain of mice, rats and humans, combining Diffusion Weighted Magnetic Resonance Imaging (DWI) datasets from fed and fasted subjects. Hunger maps were obtained from axial/coronal (rodents/humans) brain sections containing the hypothalamus and coplanar cortico-limbic structures usi ...
DOI:
10.1016/j.appet.2019.104333

80. Characterisation and classification of pineapple (Ananas comosus [L.] Merr.) juice from pulp and peel

Author:
G. Difonzo; K. Vollmer; F. Caponio; A. Pasqualone; R. Carle; C.B. Steingass
Source:
Food control 2019 v.96 pp. 260-270
ISSN:
0956-7135
Subject:
Ananas comosus; byproducts; discriminant analysis; fruit maturity; high performance liquid chromatography; metabolites; multivariate analysis; physicochemical properties; pineapple juice; pineapples; principal component analysis; pulp
Abstract:
... Large quantities of by-products, such as peels and trimmings, emerge during industrial pineapple (Ananas comosus [L.] Merr.) processing. The latter are further exploited by juice extraction. However, the low-quality juices obtained may be marketed as genuine pineapple juice from pulp or be admixed to the latter, thus adulterating the final product. To identify chemical markers, juice was extracted ...
DOI:
10.1016/j.foodcont.2018.09.015

81. Characterisation and geographical traceability of Italian goji berries

Author:
Daniela Bertoldi; Lina Cossignani; Francesca Blasi; Matteo Perini; Alice Barbero; Silvia Pianezze; Domenico Montesano
Source:
Food chemistry 2019 v.275 pp. 585-593
ISSN:
0308-8146
Subject:
Lycium; analytical methods; carbon; copper; discriminant analysis; minerals; nitrogen; nutritive value; palmitates; provenance; small fruits; stable isotopes; sulfur; traceability; zeaxanthin; Italy
Abstract:
... This work characterises and distinguishes Italian and Asian goji berries, combining three analytical approaches to determine 5 light stable isotope ratios, 57 mineral elements and 14 carotenoids.The study analyses stable isotope ratios and provides full HPLC-DAD-MS characterisation of the carotenoid fraction in goji berries for the first time. The isotopic composition of Italian berries was charac ...
DOI:
10.1016/j.foodchem.2018.09.098

82. Characterisation of Uruguayan Honeys by Multi-Elemental Analyses as a Basis to Assess Their Geographical Origin

Author:
Verónica Berriel; Patricia Barreto; Carlos Perdomo
Source:
Foods 2019 v.8 no.1 pp. -
ISSN:
2304-8158
Subject:
discriminant analysis; honey; mineral content; multivariate analysis; prediction; provenance; Argentina; Uruguay
Abstract:
... In this work, we evaluated the possibility of predicting the geographic origin of Uruguayan honeys using discriminant analysis (DA) on mineral concentration. Although the DA results appeared to discriminate between honeys from the south, central and north, the subsequent cross-validation analysis did not confirm this result. We also compared honeys from Uruguay and the Buenos Aires province (Argen ...
DOI:
10.3390/foods8010024
PubMed:
30641893
PubMed Central:
PMC6352123

83. Characteristics of fragipan B horizons developed on different parent material in North-Western Italy

Author:
E. Raimondo; G. Falsone; M. D’Amico; S. Stanchi; L. Celi; E. Bonifacio
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.3 pp. 308-321
ISSN:
1476-3567
Subject:
B horizons; Fragiudalfs; brittleness; clay; discriminant analysis; fragipans; iron oxides; kaolinite; land use; pH; porosity; rivers; roots; weathering; Italy
Abstract:
... A Fragipan (Bx) is a soil horizon hard when dry and brittle when moist, that undergoes slaking upon water immersion, forming a barrier to roots and limiting land use. Brittleness and slaking depend on soil porosity and particle arrangement, but still no agreement exists on the inorganic components responsible for such arrangement. We hypothesized that the same kind of particle arrangement may orig ...
DOI:
10.1080/03650340.2018.1501474

84. Characteristics of microbial community indicate anthropogenic impact on the sediments along the Yangtze Estuary and its coastal area, China

Author:
Xing-pan Guo; Yi Yang; Zuo-shun Niu; Da-Pei Lu; Chun-hong Zhu; Jing-nan Feng; Jia-yuan Wu; Yu-ru Chen; Fei-yun Tou; Min Liu; Lijun Hou
Source:
Science of the total environment 2019 v.648 pp. 306-314
ISSN:
0048-9697
Subject:
Euryarchaeota; ammonium; anthropogenic activities; biochemical pathways; biomarkers; chromium; coastal sediments; coasts; discriminant analysis; estuaries; high-throughput nucleotide sequencing; humans; indicator species; indigenous species; metabolism; methane; methanogens; methanotrophs; microbial communities; monitoring; nitrites; nitrogen content; nutrients; organic carbon; phosphorus; quantitative polymerase chain reaction; sludge; sulfates; urban runoff; wastewater treatment; zinc; China
Abstract:
... In the contaminated coastal sediments, variations of microbial community can reflect the impact of anthropogenic activities. The identification, evaluation and monitoring of the potential bio-indicator species and biomarker communities are vital for the ecological studies in sedimentary environments. Based on the high-throughput sequencing, the microbial communities were characterized in the sedim ...
DOI:
10.1016/j.scitotenv.2018.08.162

85. Characteristics of sagittae morphology in sixteen marine fish species collected from the Persian Gulf: Demonstration of the phylogenetic influence on otolith shape

Author:
Azad Teimori; Azam Khajooei; Mina Motamedi; Majid Askari Hesni
Source:
Regional studies in marine science 2019 v.29 pp. 100661
ISSN:
2352-4855
Subject:
DNA barcoding; discriminant analysis; genes; marine fish; marine science; morphometry; nucleotide sequences; otoliths; phylogeny; species diversity; Persian Gulf
Abstract:
... Previous studies have documented that some otolith features are genetically encoded and may have phylogenetic signals. However, few studies have applied molecular data to examine otolith morphology patterns with a phylogenetic view. To advance our knowledge on this issue, we examined a combination of data including otolith morphology, morphometry, shape indices and data of mtDNA sequences (COI gen ...
DOI:
10.1016/j.rsma.2019.100661

86. Characterization and classification of rat neural stem cells and differentiated cells by comparative metabolic and lipidomic profiling

Author:
Hwanhui Lee; Ha-Rim Lee; Hye-Youn Kim; Heayyean Lee; Hyun-Jung Kim; Hyung-Kyoon Choi
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.21 pp. 5423-5436
ISSN:
1618-2642
Subject:
creatinine; discriminant analysis; gas chromatography-mass spectrometry; glutamine; lactic acid; least squares; lipids; lysine; metabolites; neural stem cells; neurodegenerative diseases; rats
Abstract:
... It is necessary to characterize and classify neural stem cells (NSCs) and differentiated cells (DCs) for potential use of NSC to treat neurodegenerative diseases. We therefore performed an analysis of NSCs and DCs using gas chromatography mass spectrometry (GC-MS) and direct infusion mass spectrometry (DI-MS) with elaborate multivariate statistical analysis for the characterization and classificat ...
DOI:
10.1007/s00216-019-01922-y

87. Characterization and classification of wines according to geographical origin, vintage and specific variety based on elemental content: a new chemometric approach

Author:
Ioana Feher; Dana Alina Magdas; Adriana Dehelean; Costel Sârbu
Source:
Journal of food science and technology 2019 v.56 no.12 pp. 5225-5233
ISSN:
0022-1155
Subject:
chemometrics; discriminant analysis; principal component analysis; provenance; white wines
Abstract:
... A highly informative chemometric approach using elemental data to distinguish and classify wine samples according to different criteria was successfully developed. The robust chemometric methods, such fuzzy principal component analysis (FPCA), FPCA combined with linear discriminant analysis (LDA), namely FPCA-LDA and mainly fuzzy divisive hierarchical associative-clustering (FDHAC), including also ...
DOI:
10.1007/s13197-019-03991-4
PubMed:
31749469
PubMed Central:
PMC6838274

88. Characterization and discrimination of selected China's domestic pork using an LC-MS-based lipidomics approach

Author:
Si Mi; Ke Shang; Xia Li; Chun-Hui Zhang; Ji-Qian Liu; De-Qiong Huang
Source:
Food control 2019 pp. -
ISSN:
0956-7135
Subject:
data collection; discriminant analysis; least squares; liquid chromatography; models; nutritive value; polyketides; pork; raw meat; rump; sphingolipids; sterols; swine; tandem mass spectrometry; China
Abstract:
... A lipidomics study using liquid chromatography-tandem mass spectrometry and multivariate statistics was conducted in this work to discriminate raw pork meat. A total of 1180 lipid species were identified in the studied pork samples. Four, three and eight lipids were determined as potential discriminatory markers for the five cuts (shoulder, rump, loin, shank and belly) of Tibetan, Jilin and Sanmen ...
DOI:
10.1016/j.foodcont.2019.02.001

89. Characterization and discrimination of selected chicken eggs in China's retail market based on multi-element and lipidomics analysis

Author:
Si Mi; Ke Shang; Chun-Hui Zhang; Yu-Qing Fan
Source:
Food research international 2019 v.126 pp. 108668
ISSN:
0963-9969
Subject:
atomic absorption spectrometry; chemical analysis; chemical elements; chemometrics; chicken eggs; crossbreds; discriminant analysis; egg albumen; egg yolk; eggs; least squares; liquid chromatography; nutritive value; polyketides; retail marketing; sphingolipids; sterols; tandem mass spectrometry; China
Abstract:
... The present study focuses on the differentiation of Deqingyuan (n = 90), Taihe (n = 90) and crossbred (n = 90) black-boned silky fowl eggs based on chemometrics analysis of multi-element and lipidomics data. A total of 53 chemical elements were simultaneously quantified in the eggs using inductively coupled plasma mass spectrometry. Multivariate statistical analysis of element data screened 30, 13 ...
DOI:
10.1016/j.foodres.2019.108668

90. Characterization and mapping of illegal landfill potential occurrence in the Canary Islands

Author:
Lorenzo Carlos Quesada-Ruiz; Victor Rodriguez-Galiano; Rosa Jordá-Borrell
Source:
Waste management 2019 v.85 pp. 506-518
ISSN:
0956-053X
Subject:
coasts; crime; discriminant analysis; greenhouses; islands; landfills; models; monitoring; normalized difference vegetation index; population density; urban areas; waste management; wastes; Canary Islands
Abstract:
... The proliferation of illegal landfills (IL) has a negative impact, especially for ecologically sensitive areas or those attractive for tourists. This research focuses on the drivers of the IL spatial distribution in archipelagic environments for mapping the IL potential occurrence. 286 and 153 illegal landfills localizations were identified through fieldwork in the islands of Gran Canaria (GC) and ...
DOI:
10.1016/j.wasman.2019.01.015

91. Characterization of Brazilian banknotes using portable X-ray fluorescence and Raman spectroscopy

Author:
Aline R. Novais Rodrigues; Fábio Luiz Melquiades; Carlos Roberto Appoloni; Eduardo Neris Marques
Source:
Forensic science international 2019 v.302 pp. 109872
ISSN:
0379-0738
Subject:
Raman spectroscopy; X-radiation; X-ray fluorescence spectroscopy; discriminant analysis; elemental composition; equipment; fluorescence; least squares; metals; paper; pigments; principal component analysis; spectral analysis; Brazil
Abstract:
... As technology advances, counterfeiters improve their techniques reproducing banknotes with more accuracy. Spectroscopic techniques may be applied for characterization of these forgeries. The aim of this study was to develop a methodology for banknotes characterization employing portable X-ray fluorescence (pXRF) and portable Raman spectroscopy (RS) equipment for measurements in genuine and counter ...
DOI:
10.1016/j.forsciint.2019.06.030

92. Characterization of Brazilian coffee based on isotope ratio mass spectrometry (δ13C, δ18O, δ2H, and δ15N) and supervised chemometrics

Author:
Chuan-yi Peng; Yan-ling Zhang; Wei Song; Hui-mei Cai; Yijun Wang; Daniel Granato
Source:
Food chemistry 2019 v.297 pp. 124963
ISSN:
0308-8146
Subject:
carbon; chemometrics; data analysis; discriminant analysis; mass spectrometry; nitrogen; oxygen; provenance; stable isotopes; support vector machines; Brazil
Abstract:
... Authentication of ground coffee has become an important issue because of fraudulent activities in the sector. In the current work, sixty-seven Brazilian coffees produced in different geographical origins using organic (ORG, n = 25) and conventional (CONV, n = 42) systems were analyzed for their stable isotope ratios (δ13C, δ18O, δ2H, and δ15N). Data were analyzed by inferential analysis to compare ...
DOI:
10.1016/j.foodchem.2019.124963

93. Characterization of Volatile Profiles of Six Popular Edible Mushrooms Using Headspace‐Solid‐Phase Microextraction Coupled with Gas Chromatography Combined with Chemometric Analysis

Author:
Mun Yhung Jung; Da Eun Lee; Hong Yu Cheng; Il‐Min Chung; Seung‐Hyun Kim; Jae‐Gu Han; Won‐Sik Kong
Source:
Journal of food science 2019 v.84 no.3 pp. 421-429
ISSN:
0022-1147
Subject:
Hypsizygus; Pleurotus ostreatus; benzaldehyde; benzyl alcohol; chemometrics; data collection; discriminant analysis; farms; food industry; gas chromatography; mass spectrometry; metabolites; mushrooms; octenol; principal component analysis; quality control; solid phase microextraction; volatile compounds
Abstract:
... The classification of six mushroom species (white beech, brown beech, button, oyster, king oyster, and enoki mushrooms) was successfully achieved using canonical discriminant analysis (CDA) on volatile metabolite data sets obtained by headspace‐solid‐phase microextraction gas chromatography (HS‐SPME‐GC). Twenty‐seven major volatile compounds in six edible mushrooms were positively identified by HS ...
DOI:
10.1111/1750-3841.14481

94. Characterization of dried and freeze-dried sea fennel (Crithmum maritimum L.) samples with headspace gas-chromatography/mass spectrometry and evaluation of an electronic nose discrimination potential

Author:
Pasquale Giungato; Massimiliano Renna; Roberto Rana; Sabina Licen; Pierluigi Barbieri
Source:
Food research international 2019 v.115 pp. 65-72
ISSN:
0963-9969
Subject:
Crithmum maritimum; air drying; aldehydes; discriminant analysis; electronic nose; freeze drying; gas chromatography-mass spectrometry; headspace analysis; ketones; markets; monitoring; shelf life; spices; terpenoids; volatile organic compounds; water activity
Abstract:
... Processed samples (air-dried @ 40 and @ 60 °C and freeze-dried) of sea fennel (Crithmum maritimum L.), an autochthonous spice with interesting market potential, were analyzed by headspace gas-chromatography/mass spectrometry and classification capabilities of an electronic nose in discriminating between samples with stepwise forward statistics were evaluated as well. Freeze-drying process was the ...
DOI:
10.1016/j.foodres.2018.07.067

95. Characterization of the otic bacterial microbiota in dogs with otitis externa compared to healthy individuals

Author:
Juraj Korbelik; Ameet Singh; Joyce Rousseau; J. Scott Weese
Source:
Veterinary dermatology 2019 v.30 no.3 pp. 228
ISSN:
0959-4493
Subject:
DNA; Pseudomonas; Staphylococcus; bacteria; bioinformatics; community structure; computer software; discriminant analysis; dog diseases; dogs; ears; genes; otitis externa; ribosomal RNA; species diversity; veterinary medicine
Abstract:
... BACKGROUND: Otitis externa is a common multifactorial disease in dogs. The diversity of the cutaneous microbiota in dogs appears to decrease in diseased states. However, little is known about the microbiota of the canine ear and how it is altered by disease. HYPOTHESIS/OBJECTIVES: To describe the otic bacterial microbiota in dogs with otitis externa compared to healthy dogs. ANIMALS: Samples were ...
DOI:
10.1111/vde.12734

96. Characterization of three different classes of non-fermented teas using untargeted metabolomics

Author:
Qunfeng Zhang; Si Wu; Yan Li; Meiya Liu; Kang Ni; Xiaoyun Yi; Yuanzhi Shi; Lifeng Ma; Lothar Willmitzer; Jianyun Ruan
Source:
Food research international 2019 v.121 pp. 697-704
ISSN:
0963-9969
Subject:
antioxidants; chemical composition; discriminant analysis; flavor; least squares; metabolomics; models; secondary metabolites; taste; tea; China; Japan; Korean Peninsula
Abstract:
... Non-fermented teas, which are widely consumed in China, Japan, Korea, and elsewhere, have refreshing flavors and valuable health benefits. Various types of non-fermented teas look and taste similar and have no obvious differences in appearance, making their classification challenging. To date, there are very few reports about characterization and discrimination of different types of non-fermented ...
DOI:
10.1016/j.foodres.2018.12.042

97. Checking syrup adulteration of honey using bioluminescent bacteria and chemometrics

Author:
Dora Melucci; Alessandro Zappi; Luca Bolelli; Francesca Corvucci; Giorgia Serra; Michela Boi; Francesca-Vittoria Grillenzoni; Giorgio Fedrizzi; Simonetta Menotta; Stefano Girotti
Source:
European food research & technology 2019 v.245 no.2 pp. 315-324
ISSN:
1438-2377
Subject:
Vibrio fischeri; adulterated products; analytical methods; bacteria; bioluminescence; chemometrics; discriminant analysis; food research; fraud; honey; least squares; physicochemical properties; principal component analysis; rapid methods; screening; sugars; syrups
Abstract:
... Accomplishing the Italian law to verify honey quality is onerous, because it requires measuring many chemical and physical parameters. On the contrary, bioluminescence-based analytical methods allow for rapid and inexpensive analysis. Bioluminescence has never been applied before to verify honey adulteration. The application of chemometrics to analytical methods based on bioluminescence has been h ...
DOI:
10.1007/s00217-018-3163-8

98. Chemometric Analysis of Elemental Fingerprints for GE Authentication of Multiple Geographical Origins

Author:
Lu Xu; Qiong Shi; Si-Min Yan; Hai-Yan Fu; Shunping Xie; Daowang Lu
Source:
Journal of Analytical Methods in Chemistry (Online) 2019 v.2019 pp. -
ISSN:
2090-8873
Subject:
Gastrodia elata; atomic absorption spectrometry; cadmium; calcium; chemometrics; chromium; cobalt; copper; discriminant analysis; iron; lead; least squares; magnesium; manganese; minerals; molybdenum; nickel; potassium; provenance; sodium; strontium; zinc
Abstract:
... The feasibility of combining elemental fingerprints and chemical pattern recognition methods for authentication of the geographical origins of a Chinese herb, Gastrodia elata BI. (GE), was studied in this paper. A total of 210 GE samples were collected from 7 different producing areas. The levels of 15 mineral elements in GE, including Zn, Cd, Co, Cr, Cu, Ca, Mg, Mn, Mo, Ni, Pb, Sr, Fe, Na, and K, ...
DOI:
10.1155/2019/2796502
PubMed:
31380141
PubMed Central:
PMC6657606

99. Chemometric Authentication of Brazilian Coffees Based on Chemical Profiling

Author:
Pablo Inocêncio Monteiro; Jânio Sousa Santos; Oxana Ye Rodionova; Alexey Pomerantsev; Eduardo Sidinei Chaves; Neiva Deliberali Rosso; Daniel Granato
Source:
Journal of food science 2019 v.84 no.11 pp. 3099-3108
ISSN:
0022-1147
Subject:
Coffea arabica; adulterated products; antioxidant activity; botanical composition; caffeic acid; chemometrics; coffee products; discriminant analysis; flavonoids; food chain; high performance liquid chromatography; least squares; lipid peroxidation; organic foods; pH; principal component analysis; quality control; support vector machines; total soluble solids; Brazil
Abstract:
... In this work, different chemometric tools were compared to classify n = 26 conventional (CONV) and n = 19 organic (ORG) coffees from the main Brazilian producing regions based on the chemical composition, physicochemical properties, and antioxidant activity. Principal component analysis separated ORG and CONV coffees but the distinction among the producing regions of Brazilian coffee was not possi ...
DOI:
10.1111/1750-3841.14815

100. Chemometric classification and quantification of sesame oil adulterated with other vegetable oils based on fatty acids composition by gas chromatography

Author:
Changrui Xing; Xiangyu Yuan; Xueyou Wu; Xiaolong Shao; Jian Yuan; Wenjing Yan
Source:
Lebensmittel-Wissenschaft + Technologie 2019 v.108 pp. 437-445
ISSN:
0023-6438
Subject:
adulterated products; chemometrics; cooking fats and oils; corn oil; discriminant analysis; fatty acid composition; gas chromatography; least squares; principal component analysis; rapeseed; sesame oil; sesame seed; soybeans; sunflower oil; vegetable oil; vegetables
Abstract:
... The detection of adulteration of sesame oil with four vegetable oils was investigated by measuring fatty acid composition. Adulteration based fatty acid composition was evaluated with 73 sesame seed samples, 57 rapeseed seed samples, 103 soybean seed samples, 11 brands of sunflower oil and 14 brands of maize oil. Discriminate analysis and principal component analysis were used to study the data di ...
DOI:
10.1016/j.lwt.2019.03.085