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

journal
https://www.readbyqxmd.com/read/28730944/integrating-bioassays-and-analytical-chemistry-as-an-improved-approach-to-support-safety-assessment-of-food-contact-materials
#1
Julien Veyrand, Maricel Marin-Kuan, Claudine Bezencon, Nancy Frank, Violaine Guérin, Sander Koster, Hélia Latado, Julie Mollergues, Amaury Patin, Dominique Piguet, Patrick Serrant, Jesus Varela, Benoît Schilter
Food contact materials (FCM) contain chemicals which can migrate into food and result in human exposure. Although it is mandatory to ensure that migration does not endanger human health, there is still no consensus on how to pragmatically assess the safety of FCM since traditional approaches would require extensive toxicological and analytical testing which are expensive and time consuming. Recently, the combination of bioassays, analytical chemistry and risk assessment has been promoted as a new paradigm to identify toxicologically relevant molecules and address safety issues...
July 21, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28722538/dispersed-synthesis-of-uniform-fe3o4-magnetic-nanoparticles-via-in-situ-decomposition-of-iron-precursor-along-cotton-fiber-for-sudan-dyes-analysis-in-food-samples
#2
Yassine Bentahir, Said Elmarhoum, Rachid Salghi, Manuel Algarra, Angel Ríos, Mohammed Zougagh
Fe3O4 magnetic nanoparticles, with a negative charge surface, are known to have efficient adsorbent properties, but they tend to be agglomerated into larger aggregates or flocs, which can cause loss of specific area. The addition of cotton fiber, as a stabilizer in preparation of the Fe3O4 nanoparticles, is able to efficiently reduce particle aggregation, and thus, effective particle size, resulting in much greater specific surface area and adsorption sites. Fe3O4 nanoparticles synthesis was accomplished by in-situ high temperature decomposition of the precursor ferric ion in the presence of cotton fiber and ethylene glycol solvent...
July 19, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28712345/post-processing-optimization-of-electrospun-sub-micron-poly-3-hydroxybutyrate-fibers-to-obtain-continuous-films-of-interest-in-food-packaging-applications
#3
A Cherpinski, S Torres-Giner, L Cabedo, J M Lagaron
Polyhydroxyalkanoates (PHAs) are one of the most researched family of biodegradable polymers based on renewable materials due to their thermoplastic nature and moisture resistance. The present study was targeted to investigate the preparation and characterization of poly(3-hydroxybutyrate) (PHB) films obtained through the electrospinning technique. To convert them into continuous films, of interest in for instance packaging, the electrospun fiber mats were subsequently post-processed by different physical treatments to optimize their physical performance...
July 17, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28707572/erratum
#4
(no author information available yet)
No abstract text is available yet for this article.
July 14, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28513302/controlled-release-of-1-methylcyclopropene-from-its-functionalised-electrospun-fibres-under-constant-and-linearly-ramped-humidity
#5
Tze Loon Neoh, Hermawan Dwi Ariyanto, Patricia Menéndez Galvan, Hidefumi Yoshii
The methodology to electrospin polystyrene (PS) fibres functionalised with the inclusion complex between 1-methylcyclopropene (1-MCP) and α-cyclodextrin (α-CD) has been developed successfully. Due to limited availability, α-CD crystals instead of 1-MCP/α-CD complex were suspended in the electrospinning (ES) solutions to investigate the ES process. The ES solutions were characterised in terms of viscosity, conductivity and surface tension. Meanwhile, the fibres were subjected to scanning electron microscopy...
July 14, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28699833/safety-assessment-of-16-sweeteners-for-the-korean-population-using-dietary-intake-monitoring-and-poundage-method
#6
MeeKyung Kim, Gunyoung Lee, Ho Soo Lim, Sang Soon Yun, Myungsil Hwang, Jin-Hwan Hong, Hoonjeong Kwon
A sweetener is a food additive that imparts a sweet taste to food products. Sweeteners have been increasingly used in Korea since the approval of sodium saccharin and d-sorbitol in 1962. Unlike food contaminants, humans are exposed to food additives only through the consumption of processed food products. For exposure assessments of sweeteners, the dietary intakes of food products containing acesulfame-K, aspartame, saccharin-Na, and sucralose were determined, and the resulting calculated estimated daily intake (EDI) values were compared directly with each additive's ADI...
July 12, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28675102/the-occurrence-exposure-and-risk-assessment-of-perfluoroalkyl-acids-in-food-from-mainland-china
#7
Xinxuan Wang, Ruobing Zhang, Hong Zhang, Yanping Wang
To study the contamination of perfluoroalkyl acids (PFAAs) in Chinese food and the risk of dietary exposure for the Chinese population, the data of 17 PFAAs covering 38 cities throughout China in 15 groups of foods were collected for meta-analysis from published and available research literature. Using food consumption and body weight parameters, estimated dietary intakes (EDIs) were calculated for evaluation using the Scenario-Based Risk Assessment (SceBRA) modelling. Among food groups, the highest ΣPFAAs concentrations and EDI contributions were both found in poultry (363 ng/g), fish and shrimp (313 ng/g), dark vegetables (309 ng/g), fruits (116 ng/g) and pork (25 ng/g)...
July 11, 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
#8
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...
July 11, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28604253/polybrominated-diphenyl-ethers-pbdes-in-us-meat-and-poultry-2012-13-levels-trends-and-estimated-consumer-exposures
#9
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 US meat and poultry (beef, pork, chicken, turkey) study were analysed for seven PBDEs. The mean summed concentrations of the seven BDE congeners (ΣPBDE) from beef, pork, chicken and turkey were 0.40, 0.36, 0.19, and 0.76 ng g(-1) lipid weight (lw). The range of ΣPBDEs for all meat classes was 0...
July 11, 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
#10
Danika Martyn, Annette Lau, Maryse Darch, Ashley 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 Nos 210-213) from non-alcoholic beverages in Brazil, Canada, Mexico and the United States. These four jurisdictions were identified as having some of the most prevalent use of benzoates in beverages globally. 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...
July 11, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28540749/aflatoxins-contamination-of-maize-in-serbia-the-impact-of-weather-conditions-in-2015
#11
Elizabet Janić Hajnal, Jovana Kos, Jelena Krulj, Saša Krstović, Igor Jajić, Lato Pezo, Bojana Šarić, Nataša Nedeljković
In recent years climate changes recorded in temperate regions of Europe have led to aflatoxin (AF) contamination of maize. Thus, the aim of this study was to investigate the influence of weather conditions on levels of aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1) and aflatoxin G2 (AFG2) in 180 maize samples collected from the main maize-growing regions (Western Bačka, North Banat, South Banat and Central Serbia) in Serbia after harvest in 2015. The concentrations of AFs were determined by a validated HPLC method with post-column derivatisation and fluorescence detection (HPLC-FLD)...
July 11, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28671034/acrylamide-in-commercial-foods-and-intake-by-infants-in-estonia
#12
Andres Elias, Mati Roasto, Mari Reinik, Keiu Nelis, Eha Nurk, Terje Elias
Acrylamide is formed when certain foods with low moisture are prepared at above 120 ºC, especially those foods containing asparagine and reducing sugars such as glucose and fructose. Acrylamide is a probable carcinogen, and from animal evidence the margins of exposure indicate a concern for neoplastic effects. On a body weight basis infants´ acrylamide intakes are often higher than those of adults. The aim of the study was to determine acrylamide levels in different commercially-available foods and to assess dietary acrylamide intakes by infants...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28670952/assessment-of-aflatoxin-exposure-among-young-children-in-ethiopia-using-urinary-biomarkers
#13
Abebe Ayelign, Ashagrie Zewdu Woldegiorgis, Abdulaziz Adish, Marthe De Boevre, Ellen Heyndrickx, Sarah De Saeger
The direct measurement of biomarkers of exposure in biological fluids such as urine has become important for assessing aflatoxin exposure in humans as it is the only tool that integrates exposures from various routes. For this reason, a study was conducted to assess aflatoxin exposure among young children in Ethiopia using urinary biomarkers. A cross-sectional study was conducted in ten Woredas (Districts) from Amhara and Tigray regional states of Ethiopia including 200 children (aged 1-4 years). A total of 200 urine samples were collected from 200 children and assessed for the levels of aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1), aflatoxin G2 (AFG2) and aflatoxin M1 (AFM1) using a validated LC-MS/MS method...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28665769/lack-of-evidence-for-microplastic-contamination-in-honey
#14
Peter Mühlschlegel, Armin Hauk, Ulrich Walter, Robert Sieber
Honey samples from Switzerland were investigated with regard to their microplastic particle burden. Five representative honey samples of different origin were processed following a standardized protocol to separate plastic-based microparticles from particles of natural origin, such as pollen, propolis, wax, and bee-related debris. The procedure was optimized to minimize post-sampling microplastic cross-contamination in the laboratory. The isolated microplastic particles were characterized and grouped by means of light microscopy as well as chemically characterized by microscopically coupled Raman and Fourier transform infrared spectroscopy...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28665762/preparation-and-optimization-of-submicron-chitosan-capsules-by-water-based-electrospraying-for-food-and-bioactive-packaging-applications
#15
Sruthi Sreekumar, Philipp Lemke, Bruno M Moerschbacher, Sergio Torres-Giner, Jose M Lagaron
In the present study, a well-defined set of chitosans, with different degrees of acetylation (DA) and degrees of polymerization (DP), were processed by solution electrospraying from a water-based solvent. The solution properties, in terms of surface tension, conductivity, viscosity, and pH, were characterized and related to the physico-chemical properties of the chitosans. It was observed that both DA and DP values of a given chitosan, in combination with biopolymer concentration, mainly determined solution viscosity...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28643606/origin-of-low-molecular-mass-aldehydes-as-disinfection-by-products-in-beverages
#16
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...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28675343/state-of-the-art-in-the-validation-of-screening-methods-for-the-control-of-antibiotic-residues-is-there-a-need-for-further-development
#17
Valérie Gaudin
Screening methods are used as a first-line approach to detect the presence of antibiotic residues in food of animal origin. The validation process guarantees that the method is fit-for-purpose, suited to regulatory requirements, and provides evidence of its performance. This article is focused on intra-laboratory validation. The first step in validation is characterisation of performance, and the second step is the validation itself with regard to pre-established criteria. The validation approaches can be absolute (a single method) or relative (comparison of methods), overall (combination of several characteristics in one) or criterion-by-criterion...
July 4, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28665764/determination-of-sudan-i-and-a-newly-synthesized-sudan-iii-positional-isomer-in-the-color-additive-d-c-red-no-17-using-high-performance-liquid-chromatography
#18
Adrian Weisz, India C James, Christian J Tae, Clark D Ridge, Yoichiro Ito
Specifications in the Code of Federal Regulations for the color additive D&C Red No. 17 (Colour Index 26100) limit the levels of two subsidiary colors, 1-(phenylazo)-2-naphthol (Sudan I) and 1-[[2-(phenylazo)phenyl]azo]-2-naphthalenol (Sudan III o-isomer), to 3% and 2%, respectively. The present work reports the development of a high-performance liquid chromatography (HPLC) method for the quantitative determination of these subsidiary colors. Since Sudan III o-isomer needed to be synthesized for use as a reference material, a two-step procedure was devised: (i) preparative-scale synthesis of the intermediate 2-aminoazobenzene (2AAB) and its purification by counter-current chromatography and (ii) diazotization of 2AAB and coupling with 2-naphthol...
June 30, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28665763/overall-and-specific-migration-from-multilayer-high-barrier-food-contact-materials-kinetic-study-of-cyclic-polyester-oligomers-migration
#19
Sara Úbeda, Margarita Aznar, Paula Vera, Cristina Nerín, Luis Henríquez, Laura Taborda, Claudia Restrepo
Most multilayer high barrier materials used in food packaging have a polyurethane adhesive layer in their structures. In order to assess the safety of these materials, it is important to determine the compounds intentionally added to the adhesives (IAS) as well as those non-intentionally added substances (NIAS). During the manufacture of polyurethane adhesives, some by-products can be formed, such as cyclic polyester oligomers coming from the reaction between dicarboxylic acids and glycols. Since these compounds are not listed in the Regulation 10/2011/EU, they should not be found in migration above 0...
June 30, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28657828/corrigendum
#20
(no author information available yet)
No abstract text is available yet for this article.
June 28, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
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