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You searched for: Journal Food analytical methods Remove constraint Journal: Food analytical methods Publication Year 2019 Remove constraint Publication Year: 2019 Source 2019 v.12 no.4 Remove constraint Source: 2019 v.12 no.4
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1. Aptamer-Based Detection Methodology Studies in Food Safety

Author:
Song, Shang-Hong; Gao, Zhi-Fei; Guo, Xin; Chen, Guan-Hua
Source:
Food analytical methods 2019 v.12 no.4 pp. 966-990
ISSN:
1936-9751
Subject:
allergens; antibodies; colorimetry; drug residues; electrochemistry; fluorescence; food safety; foods; oligonucleotides; pesticides; pollutants; toxins; veterinary drugs
Abstract:
... Oligonucleotide aptamers as a new type of molecular recognition element, compared with conventional antibodies, have not only high affinity and specificity to target molecules but also many advantages such as a wide range of target molecule recognition, synthesis in vitro, and chemical stability. With deep concerns of human beings about food safety issues, various aptamer-based methods for detecti ...
DOI:
10.1007/s12161-019-01437-3

2. A Reproducible Surface Plasmon Resonance Immunochip for the Label-Free Detection of Amantadine in Animal-Derived Foods

Author:
Pan, Mingfei; Yang, Jingying; Li, Shijie; Wen, Wenjun; Wang, Junping; Ding, YuMei; Wang, Shuo
Source:
Food analytical methods 2019 v.12 no.4 pp. 1007-1016
ISSN:
1936-9751
Subject:
animal-based foods; chemical species; cost effectiveness; cross reaction; detection limit; immunosuppression; inhibitory concentration 50; quantitative analysis; standard deviation; surface plasmon resonance; tandem mass spectrometry
Abstract:
... A novel surface plasmon resonance (SPR) immunosuppression chip was developed for the reproducible and label-free detection of amantadine (AM) in animal-derived foods. Under the optimal conditions, the proposed SPR immunochip presented a good signal response to AM in the concentration range of 0.05–25.0 ng mL⁻¹, exhibiting high sensitivity (IC₅₀ 4.0 ng mL⁻¹) and a low detection limit (IC₁₅ 1.3 ng m ...
DOI:
10.1007/s12161-018-01424-0

3. Construction of a Novel Fluorescent Probe for On-site Measuring Hydrogen Sulfide Levels in Food Samples

Author:
Long, Lingliang; Cao, Siyu; Jin, Bing; Yuan, Xiangqi; Han, Yuanyuan; Wang, Kun
Source:
Food analytical methods 2019 v.12 no.4 pp. 852-858
ISSN:
1936-9751
Subject:
analytical methods; bananas; beverages; fluorescent dyes; food quality; food safety; grapes; hydrogen sulfide; instrumentation; pH; raw meat; vinegars
Abstract:
... Hydrogen sulfide (H₂S) has been involved in many foodstuffs and beverages. On-site measuring the H₂S level in food samples was beneficial to the concerns about food safety and food quality. Herein, we rationally constructed a novel fluorescent probe to track the H₂S levels in various food samples. The optical experiments indicated that the probe displayed highly selective and sensitive response to ...
DOI:
10.1007/s12161-018-01421-3

4. Determination of Free Amino Acids in Stingless Bee (Meliponinae) Honey

Author:
Biluca, Fabíola Carina; Bernal, José; Valverde, Silvia; Ares, Ana María; Gonzaga, Luciano Valdemiro; Costa, Ana Carolina Oliveira; Fett, Roseane
Source:
Food analytical methods 2019 v.12 no.4 pp. 902-907
ISSN:
1936-9751
Subject:
detectors; fluorescence; free amino acids; high performance liquid chromatography; histidine; honey; mass spectrometry; phenylalanine; proline; stingless bees
Abstract:
... The present study aimed to investigate, for the first time, the presence of free amino acids in stingless bee (Meliponinae) honey samples from nine species, using high-performance liquid chromatography coupled to fluorescence (HPLC/FLD) and HPLC coupled to mass spectrometry (HPLC/MS-single quadrupole) detectors. Seventeen free amino acids were investigated, and 16 were determined. Phenylalanine (5 ...
DOI:
10.1007/s12161-018-01427-x

5. Development of a Multiresidue Method for the Determination of 24 Pharmaceuticals in Clams by QuEChERS and Liquid Chromatography-Triple Quadrupole Tandem Mass Spectrometry

Author:
Rodrigues, João; Albino, Stephanie; Silva, Sofia; Cravo, Alexandra; Cardoso, Vitor Vale; Benoliel, Maria João; Almeida, Cristina M. M.
Source:
Food analytical methods 2019 v.12 no.4 pp. 838-851
ISSN:
1936-9751
Subject:
Bivalvia; caffeine; clams; dietary exposure; drugs; liquid chromatography; multiresidue analysis; tandem mass spectrometry; therapeutics
Abstract:
... Data on different therapeutic classes of pharmaceutical compounds (PhCs) in clams or other bivalves living in natural conditions are scarce. The aim of this work was the optimization and validation of a method for the determination of PhCs in clams for further evaluation of any potential human exposure risk due to their consumption. A quick, easy, cheap, effective, rugged, and safe (QuEChERS) appr ...
DOI:
10.1007/s12161-018-01418-y

6. Employment of Laser Beam Self-Phase Modulation for Detecting Adulterations in Light-Absorbing Commercial Fluids

Author:
Ribeiro, M. S.; Turchiello, R. F.; Gómez, S. L.
Source:
Food analytical methods 2019 v.12 no.4 pp. 908-913
ISSN:
1936-9751
Subject:
adulterated products; analytical methods; grape juice; milk; oils; soft drinks; wines
Abstract:
... In recent years, the increasing number of detected criminal adulterations of beverages for human consumption, for example milk, wine, and oil, has necessitated the development of precise, fast, and portable analytical inspection techniques. Optical methods are particularly promising in this context. In this communication, we propose the employment of self-phase modulation for evaluating simple adu ...
DOI:
10.1007/s12161-018-01422-2

7. Fabrication of a Structure-Specific Molecular Imprinted Polymer–Based Electrochemical Sensor Based on CuNP-Decorated Vinyl-Functionalized Graphene for the Detection of Parathion Methyl in Vegetable and Fruit Samples

Author:
Sooraj, M. P.; Mathew, Beena
Source:
Food analytical methods 2019 v.12 no.4 pp. 1028-1039
ISSN:
1936-9751
Subject:
2,4-dinitrophenol; Fourier transform infrared spectroscopy; X-ray diffraction; copper; copper nanoparticles; detection limit; dopamine; electrochemistry; food analysis; fruits; graphene; malathion; molecular imprinting; nitroanilines; nitrobenzenes; p-nitrophenol; parathion-methyl; polymers; reducing agents; scanning electron microscopy; sensors (equipment); sodium borohydride; transmission electron microscopy; ultraviolet-visible spectroscopy; vegetables
Abstract:
... Molecular imprinted polymers on copper nanoparticle–decorated vinyl-functionalized graphene (CuNPs@GR-MIPs) are fabricated. The copper nanoparticles (CuNPs) are synthesized by the reduction of diaminopropane copper complexes (DAPCu) using sodium borohydride as reducing agent. The synthesized CuNPs are successfully decorated on vinyl-functionalized graphene (V-fGR) on which MIPs are fabricated. All ...
DOI:
10.1007/s12161-018-01428-w

8. Impedimetric Approach for Estimating the Presence of Metanil Yellow in Turmeric Powder from Tunable Capacitance Measurement

Author:
Das, Chirantan; Chakraborty, Subhadip; Bera, Nirmal Kumar; Acharya, Krishnendu; Chattopadhyay, Dipankar; Karmakar, Anupam; Chattopadhyay, Sanatan
Source:
Food analytical methods 2019 v.12 no.4 pp. 1017-1027
ISSN:
1936-9751
Subject:
absorbance; adulterants; adulterated foods; capacitance; dielectric spectroscopy; spectral analysis; turmeric; ultraviolet-visible spectroscopy
Abstract:
... This article investigates the possibility of using electrical impedance spectroscopy (EIS) technique for detection and quantification of metanil yellow (MY) in turmeric powder. The observation is supported by ultraviolet–visible (UV–Vis) absorption spectroscopy and Fourier transform mid infrared (FT-MIR) spectroscopy. Variation of electrical parameters like capacitance, impedance, conductance, and ...
DOI:
10.1007/s12161-018-01423-1

9. Mass Spectrometry Determination of Fining-Related Allergen Proteins in Chilean Wines

Author:
Pavón-Pérez, Jessy; Henriquez-Aedo, Karem; Aranda, Mario
Source:
Food analytical methods 2019 v.12 no.4 pp. 827-837
ISSN:
1936-9751
Subject:
acetonitrile; allergens; casein; chromatography; dried milk; egg albumen; formic acid; guidelines; human health; mass spectrometry; monitoring; ovalbumin; phenols; polymers; regression analysis; solvents; trypsin; ultrafiltration; wines
Abstract:
... Casein (milk powder) and ovalbumin (egg white powder) are often used as wine fining agents with the objective to promote interactions with undesirable compounds, e.g., polymeric phenols. This kind of proteins may trigger allergic reactions in susceptible individuals; therefore, their occurrence in wines could become a human health risk, moreover when their presence is not reported. The objective o ...
DOI:
10.1007/s12161-018-01416-0

10. Methods of Authentication of Food Grown in Organic and Conventional Systems Using Chemometrics and Data Mining Algorithms: a Review

Author:
de Lima, Márcio Dias; Barbosa, Rommel
Source:
Food analytical methods 2019 v.12 no.4 pp. 887-901
ISSN:
1936-9751
Subject:
additives; algorithms; analytical methods; antibiotics; chemometrics; food processing; food quality; fraud; fungi; genetic engineering; genetically modified organisms; healthy diet; hormones; organic foods; pesticides; pests; prices; statistical analysis; supermarkets; toxic substances
Abstract:
... There is a general consensus that the consumption of organic food can contribute to a healthy diet; nevertheless, large-scale production of organic food is not an easy task since it requires intense care due to the number of pests, fungi, and diseases that can wipe out an entire crop. Researchers evaluating food quality are often concerned with the use of pesticides, antibiotics, and hormones in a ...
DOI:
10.1007/s12161-018-01413-3

11. Multiplex Flow Cytometric Immunoassays for High-Throughput Screening of Multiple Mycotoxin Residues in Milk

Author:
Qu, Jianwen; Xie, Huijuan; Zhang, Shuying; Luo, Pengjie; Guo, Ping; Chen, Xianxiong; Ke, Yuebin; Zhuang, Junyu; Zhou, Fangmei; Jiang, Wenxiao
Source:
Food analytical methods 2019 v.12 no.4 pp. 877-886
ISSN:
1936-9751
Subject:
aflatoxin M1; chemical species; deoxynivalenol; detection limit; disease diagnosis; enzyme-linked immunosorbent assay; flow cytometry; fumonisin B1; infectious diseases; milk; ochratoxin A; screening; standard deviation
Abstract:
... Microsphere-based immunoassays involving flow cytometry have recently gained popularity for use in protein detection and infectious disease diagnosis due to their simple assay format and capacity for multiplexed analysis. In this work, four mycotoxins, including aflatoxin M₁ (AFM₁), ochratoxin A (OTA), deoxynivalenol (DON), and fumonisin B₁ (FB₁), were selected as model analytes. A quadplex flow c ...
DOI:
10.1007/s12161-018-01412-4

12. Near-Infrared Hyperspectral Imaging Rapidly Detects the Decay of Postharvest Strawberry Based on Water-Soluble Sugar Analysis

Author:
Liu, Qiang; Wei, Kangli; Xiao, Hui; Tu, Sicong; Sun, Ke; Sun, Ye; Pan, Leiqing; Tu, Kang
Source:
Food analytical methods 2019 v.12 no.4 pp. 936-946
ISSN:
1936-9751
Subject:
algorithms; calibration; fructose; fungi; glucose; high performance liquid chromatography; hyperspectral imagery; prediction; reflectance; strawberries; sucrose; water solubility; wavelengths
Abstract:
... This paper presents a novel strategy to detect the fungal decay in strawberry using reflectance near-infrared hyperspectral imaging (NIR-HSI, 1000–2500 nm). The variation of fructose, glucose, sucrose, and total water-soluble sugar (TWSS) content was analyzed using HPLC with a reference method during fungal infection in strawberry. The feasibility of quantifying sugar constituents relevant to the ...
DOI:
10.1007/s12161-018-01430-2

13. New Potentials in the Extraction of Trace Metal Using Natural Deep Eutectic Solvents (NADES)

Author:
Osowska, Natalia; Ruzik, Lena
Source:
Food analytical methods 2019 v.12 no.4 pp. 926-935
ISSN:
1936-9751
Subject:
atomic absorption spectrometry; barley; cobalt; copper; gel chromatography; manganese; molybdenum; solvents; zinc
Abstract:
... The aim of the study was to concentrate on developing new solvents for extraction of selected metal complexes from young barley. Estimation of the amount of elements in compound, not only their total concentration, is very important because only a part from total content of metal is absorbed by human organism. At the beginning, the total amount of elements in young barley was established as 16.69  ...
DOI:
10.1007/s12161-018-01426-y

14. Nondestructive Detection of Postharvest Quality of Cherry Tomatoes Using a Portable NIR Spectrometer and Chemometric Algorithms

Author:
Feng, Lei; Zhang, Min; Adhikari, Benu; Guo, Zhimei
Source:
Food analytical methods 2019 v.12 no.4 pp. 914-925
ISSN:
1936-9751
Subject:
cherry tomatoes; firmness; least squares; near-infrared spectroscopy; pH; prediction; spectral analysis; spectrometers; storage quality; storage time; support vector machines; total soluble solids
Abstract:
... The aim of this study was to assess the applicability of a portable NIR spectroscopy system and chemometric algorithms in intelligently detecting postharvest quality of cherry tomatoes. The postharvest quality of cherry tomatoes was evaluated in terms of firmness, soluble solids content (SSC), and pH, and a portable NIR spectrometer (950–1650 nm) was used to obtain the spectra of cherry tomatoes. ...
DOI:
10.1007/s12161-018-01429-9

15. Quantitative Determination of Fatty Acid Compositions in Edible Oils Using J-Selective 13C QDEPT

Author:
Li, Yunyan; Mao, Wenping; Liu, Chaoyang; Zhang, Xu; Wang, Junfeng
Source:
Food analytical methods 2019 v.12 no.4 pp. 991-997
ISSN:
1936-9751
Subject:
carbon; cooking fats and oils; fatty acid composition; food industry; nuclear magnetic resonance spectroscopy; quantitative analysis; stable isotopes
Abstract:
... We propose a J-selective quantitative distortionless enhancement by polarization transfer (J-selective QDEPT) ¹³C NMR method with enhanced sensitivity for accurate determination of the fatty acid compositions of edible oils. The J-selective QDEPT protocol is developed by targeted optimization of the known Q-DEPT⁺ experiment. Based on the one-bond C-H J-coupling constants (¹JCH) which can be measur ...
DOI:
10.1007/s12161-019-01432-8

16. Significance of Thermal Isomerisation on the Quantitation of Total Vitamin D3 in Foods

Author:
Gill, Brendon D.; Gilliland, Donald L.; Indyk, Harvey E.; Wood, Jackie E.; Woollard, David C.
Source:
Food analytical methods 2019 v.12 no.4 pp. 998-1006
ISSN:
1936-9751
Subject:
ambient temperature; analytical methods; cholecalciferol; ergocalciferol; food matrix; foods; isomerization; isotope labeling; saponification; storage temperature
Abstract:
... Sample preparation techniques for the analysis of vitamin D₃ in food matrices typically utilise a saponification step, either at room temperature or at elevated temperatures. A calciferol (vitamin D₂ or isotope labelled vitamin D₃) is generally chosen as the internal standard to compensate for changes of previtamin D₃–vitamin D₃ isomerisation during analysis, as well as to correct for analyte loss ...
DOI:
10.1007/s12161-019-01434-6

17. Simultaneous Determination of Isoflavones and Equol in Egg Yolk Using UPLC-MS/MS

Author:
Hu, Li; Jin, Keting; Zheng, Baozhan; Yang, Xiaofeng; Lei, Shaorong
Source:
Food analytical methods 2019 v.12 no.4 pp. 859-868
ISSN:
1936-9751
Subject:
animal products; chemical species; egg yolk; eggs; estrogens; high performance liquid chromatography; ionization; isoflavones; metabolites; monitoring; standard deviation; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... A simple and reliable analytical method based on ultra-high performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was developed and validated for the simultaneous determination of total isoflavone aglycones and its metabolite equol in egg yolk. The seven target analytes were separated on an Acquity ultra performance liquid chromatography (UPLC) system BEH C₁₈ column with gradient ...
DOI:
10.1007/s12161-018-01417-z

18. Strong Enhancement of the Chemiluminescence of Hydrogen Sulfite-Oxidant Systems in the Presence of N,S-Doped Graphene Quantum Dots, and Its Application to the Determination of Folic Acid in Spinach and Kiwifruit Samples

Author:
Zhang, Junmei; Han, Suqin
Source:
Food analytical methods 2019 v.12 no.4 pp. 869-876
ISSN:
1936-9751
Subject:
bisulfites; chemiluminescence; detection limit; electron transfer; energy transfer; fluorescence emission spectroscopy; folic acid; graphene; hydrogen; hydrogen peroxide; kiwifruit; nitrogen; oxidants; oxidation; quantum dots; spinach; sulfur
Abstract:
... The oxidation of bisulfite by classical oxidants such as hypochlorite, hydrogen peroxide, and permanganate is accompanied by weak chemiluminescence (CL). It is reported here that the CL is strongly enhanced in the presence of nitrogen/sulfur co-doped graphene quantum dots (N,S-GQD), nitrogen-doped graphene quantum dots (N-GQD), or graphene quantum dots (GQD). The weak CL of the NaHSO₃-NaClO system ...
DOI:
10.1007/s12161-018-01419-x

19. Tracing of Chemical Components of Odor in Peels and Flesh from Ripe Banana on a Daily Basis Using GC-MS Characterization and Statistical Analysis for Quality Monitoring During Storage

Author:
Zhang, Jian; Jha, Sunil Kr.; Liu, Chuanjun; Hayashi, Kenshi
Source:
Food analytical methods 2019 v.12 no.4 pp. 947-955
ISSN:
1936-9751
Subject:
antioxidant activity; antiseptics; bananas; ethanol; gas chromatography-mass spectrometry; monitoring; odors; principal component analysis; storage time; volatile compounds
Abstract:
... A promising research to evaluate the quality of ripe banana during storage period by analyzing the variability of the volatile chemical components in odor from peels and flesh based on solid-phase microextraction-GC-MS characterization and statistical analysis has been discussed. A rapid increase of ethanol concentration in peels and flesh contributes to rotting of the banana. Specifically, occurr ...
DOI:
10.1007/s12161-019-01435-5

20. Wine Authenticity by Quantitative 1H NMR Versus Multitechnique Analysis: a Case Study

Author:
Gougeon, Louis; da Costa, Gregory; Richard, Tristan; Guyon, François
Source:
Food analytical methods 2019 v.12 no.4 pp. 956-965
ISSN:
1936-9751
Subject:
case studies; food industry; nuclear magnetic resonance spectroscopy; product authenticity; wines
Abstract:
... Food counterfeit is a major issue for food industries. In the case of wines, there can be multiple forgeries such as geographical, vintage, or varietal mislabeling. For the last 10 years, the use of quantitative ¹H NMR (q-NMR) for food authentication has experienced an enormous increase. This study was based on a comparative evaluation of the results obtained for three sets of authentic high-value ...
DOI:
10.1007/s12161-018-01425-z