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Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment

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https://www.readbyqxmd.com/read/28643606/origin-of-low-molecular-mass-aldehydes-as-disinfection-by-products-in-beverages
#1
María Serrano, Mercedes Gallego, Manuel Silva
A novel, simple and automatic method based on static headspace-gas chromatography-mass spectrometry has been developed to determine 10 low-molecular mass aldehydes that can be found in beverages, coming from the treated water used in their production. These aldehydes are the most frequently found in treated water as water disinfection by-products, so they can be used as indicators of the addition of treated water to beverages. The study covered a large number of fruit juices and soft drinks. The presence of the whole array of analytes is related to the contact with treated water during beverage production, mainly by the addition of treated water as ingredient...
June 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28632453/survey-of-polychlorinated-dibenzo-p-dioxins-polychlorinated-dibenzofurans-and-non-ortho-polychlorinated-biphenyls-in-u-s-meat-and-poultry-from-2012-2013-toxic-equivalency-levels-patterns-temporal-trends-and-implications
#2
Sara J Lupton, Margaret O'Keefe, Jorge G Muñiz-Ortiz, Nelson Clinch, Pat Basu
The U.S. Department of Agriculture (USDA) conducts a statistically-based survey of the domestic meat supply (beef, pork, chicken, and turkey) to determine current levels of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and non-ortho-polychlorinated biphenyls (no-PCBs) every five years. Fat samples for each slaughter class were collected from U.S. federally licensed slaughter facilities. The samples were processed and analyzed for 17 PCDD/Fs and 3 no-PCBs. The sum of PCDD, PCDF, and no-PCB toxic equivalencies (sum-TEQ) calculated using 2005 toxic equivalency factors for all slaughter classes, ranged from non-detect (nd) to 6...
June 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28590158/relationship-between-total-polar-components-and-polycyclic-aromatic-hydrocarbons-in-fried-edible-oil
#3
Ke-Jing An, Yu-Lan Liu, Hai-Lan Liu
Deep-fried dough sticks (a Chinese traditional breakfast) were fried individually in peanut, sunflower, rapeseed, rice bran, soybean and palm oil without any time lag for 32 h (64 batches fried, each for 30 min) and fried oil samples were obtained every 2 h. The frying-induced changes in the levels of total polar compounds (TPC) and polycyclic aromatic hydrocarbons (PAHs) were investigated by edible oil polar compounds (EOPC) fast separation chromatographic system and gas chromatography-mass spectrometry (GC-MS), respectively...
June 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28524783/quantitative-analysis-of-veterinary-drugs-in-bovine-muscle-and-milk-by-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#4
Shizuka Saito-Shida, Takatoshi Sakai, Satoru Nemoto, Hiroshi Akiyama
A simple and reliable multiresidue method for quantitative determination of veterinary drugs in bovine muscle and milk using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) was developed. Critical MS parameters such as capillary voltage, cone voltage, collision energy, desolvation gas temperature and extraction mass window were carefully optimised to obtain the best possible sensitivity. Analytical samples were prepared using extraction with acetonitrile and hexane in the presence of anhydrous sodium sulphate and acetic acid, followed by ODS cartridge clean-up...
June 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28521663/towards-a-generic-procedure-for-the-detection-of-relevant-contaminants-from-waste-electric-and-electronic-equipment-weee-in-plastic-food-contact-materials-a-review-and-selection-of-key-parameters
#5
Franky Puype, Jiří Samsonek, Věra Vilímková, Šárka Kopečková, Andrea Ratiborská, Jan Knoop, Marion Egelkraut-Holtus, Markus Ortlieb, Uwe Oppermann
Recently, traces of brominated flame retardants (BFRs) have been detected in black plastic food-contact materials (FCMs), indicating the presence of recycled plastics, mainly coming from waste electric and electronic equipment (WEEE) as BFRs are one of the main additives in electric applications. In order to evaluate efficiently and preliminary in situ the presence of WEEE in plastic FCMs, a generic procedure for the evaluation of WEEE presence in plastic FCMs by using defined parameters having each an associated importance level has been proposed...
June 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28513289/detection-of-meat-species-adulteration-using-high-resolution-mass-spectrometry-and-a-proteogenomics-strategy
#6
Alberto Ruiz Orduna, Erik Husby, Charles T Yang, Dipankar Ghosh, Francis Beaudry
Due to the internationalisation of food production and distribution, there has been a significant increase of food fraud in recent years. Food fraud can have serious health implications, and it occurs when food manufacturers implement unethical practices such as making false label claims as well as using additives and fillers within their products to increase profitability. This has been a serious concern. Meat adulteration was examined using a well-defined proteogenomic annotation, carefully selected surrogate tryptic peptides and high-resolution mass spectrometry...
June 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28627317/the-european-system-for-the-control-of-the-safety-of-food-contact-materials-needs-restructuring-a-review-and-outlook-for-discussion
#7
Koni Grob
The present European system to assure the safety of migrates from food-contact materials (FCMs) needs improvement. It is proposed to implement better the self-control by the producers through improved official control and more attractive listing of approved substances and materials (the latter being subject of another discussion paper). The initial concept of a positive list for the substances used, a limit for the overall migration and regulation of compliance testing was recognised as insufficient long ago, as it does not properly cover reaction products (including oligomers) and impurities...
June 19, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28612683/determination-of-26-anti-diabetic-compounds-in-dietary-supplements-using-a-validated-uplc-method
#8
Nam Sook Kim, Kyu Yeon Kim, Geum Joo Yoo, Ji Hyun Lee, Han Na Park, Sung-Kwan Park, Sun Young Baek
The purpose of this study was to validate a rapid, simple, and accurate method using ultra performance liquid chromatography (UPLC) for the simultaneous determination of 26 anti-diabetic compounds in illegally adulterated dietary supplements. The method was validated for specificity, linearity, limit of detection, limit of quantitation, precision, accuracy, recovery, and stability. All compounds were separated with a resolution of over 1.5. The limits of detection and quantitation were 0.10-1.70 and 0.30-5...
June 14, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28608753/quantitative-assessment-of-copper-proteinates-used-as-animal-feed-additives-using-atr-ftir-spectroscopy-and-powder-x-ray-diffraction-pxrd-analysis
#9
Caoimhe A Cantwell, Laurann A Byrne, Cathal D Connolly, Michael J Hynes, Patrick McArdle, Richard A Murphy
The aim of the present work was to establish a reliable analytical method to determine the degree of complexation in commercial metal proteinates used as feed additives in the solid state. Two complementary techniques were developed. Firstly, a quantitative attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopic method investigated modifications in vibrational absorption bands of the ligand on complex formation. Secondly, a powder X-ray diffraction (PXRD) method to quantify the amount of crystalline material in the proteinate product was developed...
June 13, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28604253/polybrominated-diphenyl-ethers-pbdes-in-u-s-meat-and-poultry-2012-2013-levels-trends-and-estimated-consumer-exposures
#10
Sara J Lupton, Heldur Hakk
Polybrominated diphenyl ethers (PBDEs) are a class of brominated flame retardants whose use has contaminated foods and caused subsequent human exposures. To address the issue of possible human exposure, samples from a 2012-13 U.S. meat and poultry (beef, pork, chicken, turkey) study were analyzed for seven PBDEs. The mean summed concentrations of the 7 BDE congeners (ΣPBDE) from beef, pork, chicken, and turkey were 0.40, 0.36, 0.19, and 0.76 ng/g lipid weight (lw). The range of ΣPBDEs for all meat classes was 0...
June 12, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28604234/effects-of-milling-on-extraction-efficiency-of-incurred-pesticides-in-cereals
#11
Susan S Herrmann, Parvaneh Hajeb, Gitte Andersen, Mette E Poulsen
This study investigated the effects of particle size and milling temperature on the extraction efficiencies of pesticide residues from cereal flour. Samples of cereal grains (barley, oat, rye and wheat) were milled using a centrifugal mill with four different sieves (0.2, 1.0, 3.0 and 5.0 mm) or a knife mill both at room temperature and after freezing of the grain at -80 ºC overnight. The incurred pesticides in the test materials were extracted by the QuEChERS method and analysed by LC-MS/MS and GC-MS/MS. The particle size distribution for the milled samples was determined using a vibratory sieve shaker...
June 12, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28513336/use-of-tenax%C3%A2-films-to-demonstrate-the-migration-of-chemical-contaminants-from-cardboard-into-dry-food
#12
K Van Den Houwe, C Evrard, J Van Loco, F Lynen, E Van Hoeck
Contaminants in food packaging are a challenge of our time since the packaging material itself has been found to represent a source of food contamination through the migration of substances from it. Before first use, packaging materials destined for the packaging of dry foods can be evaluated by performing migration experiments with the simulant for dry foods, Tenax®. This simulant is commercially available as a powder that is more difficult to handle during the migration experiments. This paper reports the development of a Tenax film...
June 12, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28597726/migration-kinetics-of-four-photoinitiators-from-paper-food-packaging-to-solid-food-simulants
#13
Huimei Cai, Shuilin Ji, Juzhou Zhang, Gushuai Tao, Chuanyi Peng, Ruyan Hou, Liang Zhang, Yue Sun, Xiaochun Wan
The migration behavior of four photoinitiators (BP, EHA, MBP, and Irgacure 907) was studied by "printing" onto four different food packaging materials (Kraft paper, white cardboard, PE coated paper, and composite paper) and tracking movement into the food simulant-Tenax-TA. The results indicated that the migration of the photoinitiators was related to the molecular weight and LogKo/w of each photoinitiator. At different temperatures, the migration rates of the photoinitiators were different in papers with different thicknesses...
June 9, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28592216/benzoates-intakes-from-non-alcoholic-beverages-in-brazil-canada-mexico-and-the-united-states
#14
Danika M Martyn, Annette A Lau, Maryse N Darch, Ashley S Roberts
Food consumption data from national dietary surveys were combined with brand-specific use levels reported by beverage manufacturers to calculate the exposure to benzoic acid and its salts (INS No 210-213) from non-alcoholic beverages in Brazil, Canada, Mexico and the United States. These four jurisdictions were identified as having some of the highest usages in the world of benzoates in beverages. Use levels were weighted according to the brand's market volume share in the respective countries. Benzoates were reported to be used primarily in 'water-based flavoured drinks' (Codex General Standard for Food Additives (GSFA) category 14...
June 8, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28585900/strategies-for-the-screening-of-antibiotic-residues-in-eggs-comparison-of-the-validation-of-classical-microbiological-method-with-an-immunobiosensor-method
#15
Valérie Gaudin, Annie Rault, Celine Hedou, Christophe Soumet, Eric Verdon
Efficient screening methods are needed to control antibiotic residues in eggs. A microbiological kit (Explorer® 2.0 test (Zeu Inmunotech, Spain)) and an immunobiosensor kit (Microarray II (AM® II) on the Evidence Investigator™ system (Randox, UK)) have been evaluated and validated for screening of antibiotic residues in eggs, according to Decision EC/2002/657 (2002) and to the European guideline for the validation of screening methods (Crl 2010). The e-reader™ system, a new automatic incubator/reading system, was coupled to the Explorer® 2...
June 6, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28583037/addressing-a-multidisciplinary-challenge-from-animal-nutrition-to-analytical-science
#16
Christoph von Holst, Ana Boix, Ursula Vincent
No abstract text is available yet for this article.
June 6, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28583013/probabilistic-migration-modelling-focused-on-functional-barrier-efficiency-and-low-migration-concepts-in-support-of-risk-assessment
#17
Rainer Brandsch
Migration modelling provides reliable migration estimates from food contact materials (FCM) to food or food simulants based on mass transfer parameters like diffusion- and partition coefficients related to individual materials. In most cases mass transfer parameters are not readily available from the literature and for this reason are estimated with a given uncertainty. Historically uncertainty was accounted for by introducing upper limit concepts first, turning out to be of limited applicability due to highly overestimated migration results...
June 6, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28583010/occurrence-and-incidence-of-18-per-and-polyfluoroalkyl-compounds-in-edible-oils-commonly-consumed-in-guiyang-china
#18
Hongbo Yang, Guihong Li, Zhu Rao, Feng Guo, Zhanbin Li, Feng Xie, Hong Tan
A systematic examination was conducted for the first time of a wide carbon-chain range of per- and polyfluoroalkyl compounds (PFASs) in eighty-three samples of edible vegetable and animal oils from Guiyang, China. The occurrence and levels of 18 PFASs in 7 types of edible oil were analyzed. Analytes were determined based on a simplified, sensitive and reliable solvent extraction and liquid chromatography tandem mass spectrometry method. Ten target PFASs were found and the most frequently detected compounds with maximum concentration were PFOS (88%, 1...
June 6, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28580889/phosphodiesterase-5-inhibitors-and-their-analogues-as-adulterants-of-herbal-and-food-products-analysis-of-the-malaysian-market-in-2014-2016
#19
Nur Baizura Bujang, Chin Fei Chee, Choon Han Heh, Noorsaadah Abd Rahman, Michael J C Buckle
Adulteration of herbal health supplements with phosphodiesterase-5 (PDE-5) inhibitors and their analogues is becoming a worldwide problem. The aim of this study was to investigate herbal and food products sold in the Malaysian market for the presence of these adulterants. Sixty-two products that claim to enhance men's sexual health were sampled between April 2014 and April 2016. These products included unregistered products seized by the Pharmacy Enforcement Division of the Ministry of Health (n = 39), products sent to the National Pharmaceutical Regulatory Agency for pre-registration testing (n = 9) and products investigated under the post-registration market surveillance programme (n = 14)...
June 5, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28580874/online-detection-and-quantification-of-particles-of-ergot-bodies-in-cereal-flour-using-near-infrared-hyperspectral-imaging
#20
Ph Vermeulen, M B Ebene, B Orlando, J A Fernández Pierna, V Baeten
The objective of this study is to assess NIR hyperspectral imaging for the detection of ergot bodies at the particle level in cereal flour. For this study, ground ergot body samples and wheat flour samples as well as mixtures of both from 100 mg/kg to 500,000 mg/kg were analysed. Partial least squares discriminant analysis (PLS-DA) models were developed and applied to spectral images in order to detect the ergot body particles. Ergot was detected in 100% of samples spiked at more than 10,000 mg/kg and no false positives were obtained with non-contaminated samples...
June 5, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
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