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1. Multi-element signature of cuttlefish and its potential for the discrimination of different geographical provenances and traceability

Author:
Varrà, Maria Olga; Husáková, Lenka; Patočka, Jan; Ghidini, Sergio; Zanardi, Emanuela
Source:
Food chemistry 2021 v.356 pp. 129687
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; Sepiidae; accuracy; atomic absorption spectrometry; discriminant analysis; food chemistry; measurement; mercury; principal component analysis; traceability;     Show all 10 Subjects
Abstract:
... The measurement and analysis of fifty-two elements by quadrupole inductively coupled plasma mass spectrometry (Q-ICP-MS) and direct mercury analysis were applied to origin discrimination of Italian traditional cuttlefish (Chioggia, Venice lagoon) from Mediterranean and Atlantic samples. A total 68 specimens were analyzed in triplicates to generate 204 mass spectra profiles which were statistically ...
DOI:
10.1016/j.foodchem.2021.129687

2. Integrated 1H NMR fingerprint with NIR spectroscopy, sensory properties, and quality parameters in a multi-block data analysis using ComDim to evaluate coffee blends

Author:
Rocha Baqueta, Michel; Coqueiro, Aline; Henrique Março, Paulo; Mandrone, Manuela; Poli, Ferruccio; Valderrama, Patrícia
Source:
Food chemistry 2021 v.355 pp. 129618
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; data analysis; food chemistry; information; metabolites; near-infrared spectroscopy; principal component analysis; quality control;     Show all 8 Subjects
Abstract:
... Coffee quality is determined by several factors and, in the chemometric domain, the multi-block data analysis methods are valuable to study multiple information describing the same samples. In this industrial study, the Common Dimension (ComDim) multi-block method was applied to evaluate metabolite fingerprints, near-infrared spectra, sensory properties, and quality parameters of coffee blends of ...
DOI:
10.1016/j.foodchem.2021.129618

3. Assessment of an aerobic granular sludge system in the presence of pharmaceutically active compounds by quantitative image analysis and chemometric techniques

Author:
Leal, Cristiano S.; Lopes, Mariana; Val del Río, Angeles; Quintelas, Cristina; Castro, Paula M.L.; Ferreira, Eugénio C.; Amaral, A. Luís; Mesquita, Daniela P.
Source:
Journal of environmental management 2021 v.289 pp. 112474
ISSN:
0301-4797
Subject:
chemometrics,   etc   ; batch systems; biomass; discriminant analysis; environmental management; image analysis; principal component analysis; sludge; sulfamethoxazole; wastewater;     Show all 10 Subjects
Abstract:
... In this study, a sequencing batch reactor (SBR) with aerobic granular sludge (AGS) was operated with synthetic wastewater containing environmental relevant concentrations of 17β-estradiol (E2), 17α-ethinylestradiol (EE2) and sulfamethoxazole (SMX). Despite the presence of the studied PhAC, the granular fraction clearly predominated (TSSgᵣₐₙ/TSS ranging from 0.82 to 0.98) throughout the monitoring ...
DOI:
10.1016/j.jenvman.2021.112474

4. NIR and MIR spectroscopy for quick detection of the adulteration of cocoa content in chocolates

Author:
Santos, Ingrid Alves; Conceição, Daniele Gomes; Viana, Marília Borges; Silva, Grazielly de Jesus; Santos, Leandro Soares; Ferrão, Sibelli Passini Barbosa
Source:
Food chemistry 2021 v.349 pp. 129095
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; adulterated products; behavior; chocolate; correlation; detection; food chemistry; infrared spectroscopy; principal component analysis; spectral analysis;     Show all 10 Subjects
Abstract:
... The Near (NIR) and Mid (MIR) Infrared Spectroscopy associated with chemometric techniques were used to determine the cocoa solids content in chocolates and detect possible adulterations. Five chocolate formulations (30% to 90%) were produced with different cocoa solids concentrations and 110 commercial samples from 10 different countries with varying concentrations of cocoa solids (30% to 88%) wer ...
DOI:
10.1016/j.foodchem.2021.129095

5. HPLC-DAD fingerprints combined with chemometric techniques for the authentication of plucking seasons of Laoshan green tea

Author:
Peng, Tian-Qin; Yin, Xiao-Li; Gu, Hui-Wen; Sun, Weiqing; Ding, Baomiao; Hu, Xian-Chun; Ma, Li-An; Wei, Shu-Dong; Liu, Zhi; Ye, Shi-Yi
Source:
Food chemistry 2021 v.347 pp. 128959
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; autumn; food chemistry; green tea; high performance liquid chromatography; models; principal component analysis; summer;     Show all 8 Subjects
Abstract:
... Laoshan green teas plucked in summer and autumn were measured by high performance liquid chromatography-diode array detector (HPLC-DAD). After baseline correction, the fingerprints data were resolved by multivariate curve resolution-alternating least squares (MCR-ALS) and a total of 57 components were acquired. Relative concentrations of these components were afterwards applied to distinguish pluc ...
DOI:
10.1016/j.foodchem.2020.128959

6. Chemometric approaches to analyze the colostrum physicochemical and immunological (IgG) properties in the recently registered Himachali Pahari cow breed in India

Author:
Mehra, Rahul; Kumar, Shiv; Verma, Nishant; Kumar, Naveen; Singh, Rajat; Bhardwaj, Anuradha; Nayan, Varij; Kumar, Harish
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.145 pp. 111256
ISSN:
0023-6438
Subject:
chemometrics,   etc   ; analysis of variance; colostrum; cows; lactose; parturition; principal component analysis; titratable acidity; variance; India;     Show all 10 Subjects
Abstract:
... A chemometric study was conducted to know the geographical region-wise changes in the colostrum physicochemical and immunological properties of recently registered “Himachali Pahari” cow breed in India. The colostrum samples were collected within 72 h of parturition from two zones (high and low altitudes) comprising of four districts each and having different climatic conditions. Colostrum samples ...
DOI:
10.1016/j.lwt.2021.111256

7. Geographical traceability of sea cucumbers in China via chemometric analysis of stable isotopes and multi-elements

Author:
Kang, Xuming; Zhao, Yanfang; Liu, Wei; Ding, Haiyan; Zhai, Yuxiu; Ning, Jinsong; Sheng, Xiaofeng
Source:
Journal of food composition and analysis 2021 v.99 pp. 103852
ISSN:
0889-1575
Subject:
chemometrics,   etc   ; Holothuroidea; discriminant analysis; food composition; models; principal component analysis; seafoods; stable isotopes; traceability; China;     Show all 10 Subjects
Abstract:
... Geographical traceability is critical in protection the local characteristic product such as sea cucumbers, which is one of the highly valued seafood in China. Thus, it is urgent to develop some advanced techniques to clearly identify the geographical origins of sea cucumbers. In this work, the potential of data fusion techniques used for the traceability of sea cucumbers in China was evaluated by ...
DOI:
10.1016/j.jfca.2021.103852

8. Rapid Determination of Peroxide Value of Peanut Oils During Storage Based on Terahertz Spectroscopy

Author:
Liu, Wei; Zhao, Pengguang; Shi, Yule; Liu, Changhong; Zheng, Lei
Source:
Food analytical methods 2021 v.14 no.6 pp. 1269-1277
ISSN:
1936-9751
Subject:
chemometrics,   etc   ; absorbance; algorithms; least squares; models; oxidation; peanuts; peroxide value; prediction; principal component analysis; spectroscopy;     Show all 11 Subjects
Abstract:
... Terahertz (THz) spectroscopy was used to evaluate peroxide value (PV) of peanut oils during storage. Genetic algorithm (GA) and principal component analysis (PCA) were used as the pretreatment methods to reduce THz high-dimensional data. Interval partial least square (iPLS), back propagation neural network (BPNN), support vector regression (SVR), and partial least squares regression (PLSR) were co ...
DOI:
10.1007/s12161-020-01957-3

9. Aliphatic organic acids as promising authenticity markers of bracatinga honeydew honey

Author:
Seraglio, Siluana Katia Tischer; Bergamo, Greici; Brugnerotto, Patricia; Gonzaga, Luciano Valdemiro; Fett, Roseane; Costa, Ana Carolina Oliveira
Source:
Food chemistry 2021 v.343 pp. 128449
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; Mimosa scabrella; capillary electrophoresis; classification; detection; food chemistry; fraud; honeydew honey; models; principal component analysis;     Show all 10 Subjects
Abstract:
... This study aimed to differentiate bracatinga (Mimosa scabrella Bentham) honeydew honey (BHH) from blossom honeys and BHH intentionally adulterated, all of them from three harvests, associating data of aliphatic organic acids (AOA) determined by capillary electrophoresis and chemometric analyses. The profile and concentration of AOA in pure BHH were similar between harvests, but distinct from bloss ...
DOI:
10.1016/j.foodchem.2020.128449

10. Discriminating Coalho cheese by origin through near and middle infrared spectroscopy and analytical measures. Discrimination of Coalho cheese origin

Author:
Silva, Larissa K R; Jesus, Josane C; Onelli, Rebeca R V; Conceição, Daniele G; Santos, Leandro S; Ferrão, Sibelli P B
Source:
International journal of dairy technology 2021 v.74 no.2 pp. 393-403
ISSN:
1364-727X
Subject:
chemometrics,   etc   ; cheeses; dairy technology; discriminant analysis; near-infrared spectroscopy; principal component analysis; Brazil;     Show all 7 Subjects
Abstract:
... Discriminating traditional Coalho cheese by origin is important to ensure authenticity. The middle and near infrared spectroscopy and analytical measures associated with different chemometric approaches were used to characterise and discriminate Coalho cheese from different mesoregions of the State of Bahia, Brazil. Principal Component Analysis and Linear Discriminant Analysis were able to show th ...
DOI:
10.1111/1471-0307.12767

11. Gluten aggregation properties as a tool for durum wheat quality assessment: A chemometric approach

Author:
Grassi, Silvia; Gullì, Mariolina; Visioli, Giovanna; Marti, Alessandra
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.142 pp. 111048
ISSN:
0023-6438
Subject:
chemometrics,   etc   ; cultivars; durum wheat; gliadin; gluten; glutenins; principal component analysis; protein content; semolina;     Show all 9 Subjects
Abstract:
... The study aims at assessing the gluten aggregation properties of wholemeal semolina for the differentiation of durum wheat cultivars with different amounts of gluten-quality related fractions. To this end, a calibration set of 56 durum wheat cultivars harvested in 2015–2016 was categorized into four quality classes based on the total gluten protein content and the glutenin to gliadin ratio. Qualit ...
DOI:
10.1016/j.lwt.2021.111048

12. Rapid identification and quantification of sesame oils adulteration using low frequency dielectric spectroscopy combined with chemometrics

Author:
Soltani Firouz, Mahmoud; Rashvand, Mahdi; Omid, Mahmoud
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.140 pp. 110736
ISSN:
0023-6438
Subject:
chemometrics,   etc   ; ; adulterated products; dielectric spectroscopy; neural networks; principal component analysis; rapeseed oil; regression analysis; sesame oil;     Show all 9 Subjects
Abstract:
... Adulteration is a serious problem in the expensive edible oils, especially for sesame oil (SEO). SEO is widely adulterated with cheap edible oils such as rapeseed oil (RO). Therefore, developing a low-cost, practical, and rapid analytical method for detecting and quantifying such adulteration in SEO would be useful. A dielectric spectroscopy-based system in the range of 40 kHz˗20 MHz was developed ...
DOI:
10.1016/j.lwt.2020.110736

13. A single model to monitor multistep craft beer manufacturing using near infrared spectroscopy and chemometrics

Author:
França, Leandro; Grassi, Silvia; Pimentel, Maria Fernanda; Amigo, José Manuel
Source:
Food and bioproducts processing 2021 v.126 pp. 95-103
ISSN:
0960-3085
Subject:
chemometrics,   etc   ; beers; biobased products; fermentation; models; near-infrared spectroscopy; principal component analysis; process control;     Show all 8 Subjects
Abstract:
... This manuscript presents a comprehensive approach to monitoring the whole process of craft beer production (mashing, circulation, boiling, fermentation and carbonatation), using a simple, rapid and green methodology like Near Infrared spectroscopy combined with MSPC (Multivariate Statistics Process Control). A Principal Component Analysis model is calculated with near infrared spectra (range betwe ...
DOI:
10.1016/j.fbp.2020.12.011

14. Nondestructive Detection of Authenticity of Thai Jasmine Rice Using Multispectral Imaging

Author:
Liu, Wei; Xu, Xue; Liu, Changhong; Zheng, Lei
Source:
Journal of food quality 2021 v.2021
ISSN:
1745-4557
Subject:
chemometrics,   etc   ; adulterated products; food quality; industry; models; prediction; principal component analysis; rice;     Show all 8 Subjects
Abstract:
... The detection of authenticity is essential to the development and management of Thai jasmine rice industry. In this study, the multispectral imaging system (405–970 nm) was used for the detection of adulteration in Thai jasmine rice combined with chemometric methods including principal component analysis (PCA), partial least squares (PLS), least squares-support vector machines (LS-SVM), and backpr ...
DOI:
10.1155/2021/6642220

15. High‐performance liquid chromatography with fluorescence detection fingerprints as chemical descriptors to authenticate the origin, variety and roasting degree of coffee by multivariate chemometric methods

Author:
Núñez, Nerea; Martínez, Clara; Saurina, Javier; Núñez, Oscar
Source:
Journal of the science of food and agriculture 2021 v.101 no.1 pp. 65-73
ISSN:
0022-5142
Subject:
chemometrics,   etc   ; agriculture; filtration; flavor; fluorescence; high performance liquid chromatography; principal component analysis; taste;     Show all 8 Subjects
Abstract:
... BACKGROUND: Coffee is one of the most popular beverages around the world, consumed as an infusion of ground roasting coffee beans with a characteristic taste and flavor. Two main varieties, Arabica and Robusta, are produced worldwide. Furthermore, interest of consumers in quality attributes related to coffee production region and varieties is increasing. Thus, it is necessary to encourage the deve ...
DOI:
10.1002/jsfa.10615

16. The significance of minor components on the antibacterial activity of essential oil via chemometrics

Author:
Miladinović, Dragoljub L.; Dimitrijević, Marija V.; Mihajilov-Krstev, Tatjana M.; Marković, Marija S.; Ćirić, Vojislav M.
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.136 pp. 110305
ISSN:
0023-6438
Subject:
chemometrics,   etc   ; Achillea millefolium; Artemisia; antibacterial properties; essential oils; monoterpenoids; principal component analysis; sesquiterpenoids;     Show all 8 Subjects
Abstract:
... The significance of minor constituents of essential oils (EOs) for antibacterial activity by chemometric methods principal component analysis (PCA) and hierarchical clustering analysis (HCA) was researched. In this study, the antibacterial activity of six EOs from Achillea and Artemisia species was evaluated on nine laboratory control bacterial strains. Gas Chromatographic-Mass Spectrometric (GC/M ...
DOI:
10.1016/j.lwt.2020.110305

17. Exploring the volatile metabolome of conventional and organic walnut oils by solid-phase microextraction and analysis by GC-MS combined with chemometrics

Author:
Kalogiouri, Natasa P.; Manousi, Natalia; Rosenberg, Erwin; Zachariadis, George A.; Paraskevopoulou, Adamantini; Samanidou, Victoria
Source:
Food chemistry 2021 v.363 pp. 130331
ISSN:
0308-8146
Subject:
chemometrics,   etc   ; food chemistry; metabolome; models; principal component analysis; solid phase microextraction; temperature; volatile compounds; walnut oil; walnuts;     Show all 10 Subjects
Abstract:
... It is challenging to establish a correlation between the agronomical practices and the volatile profile of high-value agricultural products. In this study, the volatile metabolome of walnut oils from conventional and organic farming type was explored by HS-SPME-GC-MS. The SPME protocol was optimized after evaluating the effects of extraction time, extraction temperature, and sample mass. The optim ...
DOI:
10.1016/j.foodchem.2021.130331

18. Vis-NIR spectroscopic and chemometric models for detecting contamination of premium green banana flour with wheat by quantifying resistant starch content

Author:
Ndlovu, Phindile Faith; Magwaza, Lembe Samukelo; Tesfay, Samson Zeray; Mphahlele, Rebogile Ramaesele
Source:
Journal of food composition and analysis 2021 v.102 pp. 104035
ISSN:
0889-1575
Subject:
chemometrics,   etc   ; adulterated products; banana flour; food composition; industry; models; prediction; principal component analysis; resistant starch; spectral analysis; spectroscopy; wheat;     Show all 12 Subjects
Abstract:
... This study investigated the effect of nine different wheat adulteration levels (10 %, 20 %, 30 %, 40 %, 50 %, 60 %, 70 %, 80 % and 90 % added wheat) on the concentration of resistant starch (RS) of green banana flour (GBF). The study further evaluated the potential application of visible to near infrared (Vis-NIR) spectroscopy with multivariate analysis to detect changes in the concentration of re ...
DOI:
10.1016/j.jfca.2021.104035

19. PLS-DA and infrared spectroscopy based rapid and non-destructive discrimination of black ball and gel pen inks for forensic application

Author:
Gautam, Richa; Chauhan, Rohini; Kumar, Raj; Sharma, Vishal
Source:
Forensic science international 2021 v.3 pp. 100162
ISSN:
2665-9107
Subject:
chemometrics,   etc   ; Fourier transform infrared spectroscopy; algorithms; chemical analysis; data collection; forensic sciences; gels; models; principal component analysis;     Show all 9 Subjects
Abstract:
... In the Questioned Document, the examination of ink is crucial scientific evidence to discern the difference between genuine and forged documents. The document examination which is examined by physical and chemical analysis of ink involves the matching of the source of writing material used to fabricate the document of ink. In this study, fifty black ink samples (25 ball-point and 25 gel-point pens ...
DOI:
10.1016/j.fsir.2020.100162

20. The use of Raman spectroscopy and chemometrics for the discrimination of lab-produced, commercial, and adulterated cold-pressed oils

Author:
Temiz, Havva Tumay; Velioglu, Serap Durakli; Guner, Kadir Gurbuz; Velioglu, Hasan Murat
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.146 pp. 111479
ISSN:
0023-6438
Subject:
chemometrics,   etc   ; Helianthus annuus; Nigella sativa; Raman spectroscopy; adulterated products; almonds; corn; fatty acid composition; gas chromatography; principal component analysis; walnuts;     Show all 11 Subjects
Abstract:
... In this study, lab-produced cold-pressed oil samples of black cumin (CPBCO), almond (CPAO), and walnut (CPWO) were compared with their commercial substitutes. Additionally, adulteration of cold-pressed oils with corn and sunflower oils was determined. Chemical information and fatty acid composition of the samples were obtained using Raman spectroscopy and gas chromatography, respectively. Raman sp ...
DOI:
10.1016/j.lwt.2021.111479