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Chemical contaminants

Sat, 06/22/2019 - 01:12
Publication date: Available online 21 June 2019 Environmental ResearchAuthor(s): Kathleen R. Attfield, Susan M. Pinney, Andreas Sjodin, Robert W. Voss, Louise C. Greenspan, Frank M. Biro, Robert A. Hiatt, Lawrence H. Kushi, Gayle C. WindhamAbstractBackgroundAge at female puberty is associated with adult morbidities, including breast cancer and diabetes. Hormonally active chemicals are suspected...
Sat, 06/22/2019 - 01:12
Publication date: Available online 20 June 2019 Environmental ResearchAuthor(s): Pilar Gómez-Ramírez, Juan Manuel Pérez-García, Mario León-Ortega, José Enrique Martínez, José Francisco Calvo, José Antonio Sánchez-Zapata, Francisco Botella, Pedro María-Mojica, Emma Martínez-López, Antonio Juan García-FernándezAbstractBackgroundIntensification of agricultural practices has caused several negative...
Sat, 06/22/2019 - 01:12
Publication date: Available online 20 June 2019 Environmental ResearchAuthor(s): Junenette L. Peters, M. Patricia Fabian, Jonathan I. LevyAbstractBlood pressure is a leading risk factor for cardiovascular disease, influenced by chemical and non-chemical stressors. Exposure reduction strategies can potentially improve public health, but there are analytical challenges in developing quantitative...
Fri, 06/21/2019 - 01:06
Available online 19 June 2019 Author(s): Nho-Eul Song, Jun Young Lee, Ahmad Rois Mansur, Hae Won Jang, Min-Cheol Lim, Yunyeol Lee, Miyoung Yoo, Tae Gyu NamAbstractAn analytical method involving QuEChERS (quick, easy, cheap, effective, rugged, and safe) sample preparation, followed by LC-MS/MS and GC-MS/MS was developed and validated for the determination of 60 pesticides in eggs. Recoveries of 70...
Fri, 06/21/2019 - 01:06
Available online 19 June 2019 Author(s): María Carolina Talio, Vanesa Muñoz, Mariano Acosta, Liliana P. FernándezAbstractHeavy traces metals may be present in honey being their detection very important for the quality control and it also serves as an indicator of environmental pollution. A new methodology for lead traces determination has been developed based on the quenching effect of the metal...
Thu, 06/20/2019 - 01:06
Publication date: Available online 7 June 2019Source: LWTAuthor(s): Aygul Alim, Huanlu Song, Ye Liu, Tingting Zou, Yu Zhang, Songpei Zhang, Ali RazaAbstractMeat flavors produced from non-animal source is a promising topic targeting the market demand in special context to vegetarian community. In this research work, key volatiles related to beef like odors were identified from a meat-like flavor...
Wed, 06/19/2019 - 01:16
Publication date: Available online 18 June 2019 Environmental ResearchAuthor(s): Aleksandra Buha, Ravin Jugdaohsingh, Vesna Matovic, Zorica Bulat, Biljana Antonijevic, Jemma G. Kerns, Allen Goodship, Alister Hart, Jonathan PowellAbstractExposure to cadmium (Cd) is recognised as one of the risk factors for osteoporosis, although critical exposure levels and exact mechanisms are still unknown.Here...
Wed, 06/19/2019 - 01:16
Available online 17 June 2019 Author(s): Taotao Xu, Xiaohui Wang, Yiqun Huang, Keqiang Lai, Yuxia FanABSTRACTThe residue of fishery drugs in aquatic food products has not diminished and has caused worldwide attention. This study aimed to develop a surface-enhanced Raman spectroscopy (SERS) method coupled with gold nanorods (AuNRs) substrates to rapidly detect methylene blue (MB) and malachite...
Wed, 06/19/2019 - 01:16
Publication date: Available online 17 June 2019 Food and Chemical ToxicologyAuthor(s): Qin Zhao, Zhao-Si Yang, San-Jie Cao, Yung-Fu Chang, Yu-Qin Cao, Jia-Bing Li, Zi-Xuan Yao, Yi-Ping Wen, Xiao-Bo Huang, Rui Wu, Qi-Gui Yan, Yong Huang, Xiao-Ping Ma, Xin-Feng Han, Yinglong WuAbstractCadmium and aflatoxin B1 (AFB1) are both common and widespread pollutants in food and feed. There are several...
Tue, 06/18/2019 - 04:08
Abstract Aims Manila clam (Ruditapes philippinarum) is one of the most popular seafood in Korea, owing to their unique taste and nutritional value. This study aimed to disclose the antibiotic and heavy‐metal resistance characteristics of Aeromonas spp. isolated from marketed Manila clam in Korea. Methods and results A total of 36 Aeromonas spp. strains were isolated and subjected to two tests...
Tue, 06/18/2019 - 04:07
Abstract Aim Study is focused on the influence of cadmium addition to growth media on production yield, their size and molecular mass of exopolysaccharides (EPS) synthesized by three rhizosphere bacteria strains. Inhibition of bacterial growth by increasing concentrations of Cd2+ was also analyzed. Methods and Results The highest impact of Cd2+ was noticed on growth of Arthrobacter sp. and R....
Mon, 06/17/2019 - 14:25
Accuracy of data for pesticide residues analysis is particularly important because analytical results are the basis for risk assessment and taking regulatory action. We, therefore, investigated the storage stability of eight organophosphorus pesticides on seven different kinds of matrices under different conditions; and the improvement measures of the stability of five pesticides on cabbage and...
Mon, 06/17/2019 - 12:57
Abstract The evolution of volatile aldehydes and the conversion of oxygenated ityβ‐unsaturated aldehydes (OαβUAs) into furans were compared in four vegetable oils (soybean oil, olive oil [OVO], peanut oil [PO], and perilla oil [PAO]) thermally oxidized at temperatures of 150, 180, and 210 °C for 10 hr/day over a 3‐day period. Results showed that 2 alkyl furans and 23 volatile aldehydes including...
Mon, 06/17/2019 - 11:00
Methylmercury (MeHg) is a potent bioaccumulative neurotoxin that is produced by certain anaerobic bacteria and archaea. Mercury (Hg) methylation has been linked to the gene pair hgcAB, which encodes a membrane-associated corrinoid protein and a ferredoxin. Although microbial Hg methylation has been characterized in vivo, the cellular biochemistry and the specific roles of the gene products HgcA...
Mon, 06/17/2019 - 11:00
Mercury (Hg) methylation in the Florida Everglades is of great environmental concern because of its adverse effects on human and wildlife health through biomagnification in aquatic food webs. Periphyton and flocculant materials (floc) overlaying peat soil are important ecological compartments producing methylmercury (MeHg) in this ecosystem. These compartments retain higher concentrations of MeHg...
Fri, 06/14/2019 - 01:12
Available online 13 June 2019 Author(s): Sylwia Mildner-Szkudlarz, Maria Różańska, Paulina Piechowska, Agnieszka Waśkiewicz, Renata Zawirska-WojtasiakAbstractThe formation of toxic and potentially carcinogenic acrylamide, alongside volatile aroma compounds, was studied after polyphenols ((+)-catechin, quercetin, gallic, ferulic, caffeic acids) were added to model bread. The addition of as little...
Fri, 06/14/2019 - 01:12
Publication date: Available online 13 June 2019 Food and Chemical ToxicologyAuthor(s): Giacomo Russo, Francesco Barbato, Damiano Gustavo Mita, Lucia GrumettoAbstractBisphenol A and its analogues belong to the class of endocrine disrupting chemicals, massively employed by industries to produce polycarbonate and epoxy resins, designed to be in direct contact with foodstuffs. Their leaching from the...
Wed, 06/12/2019 - 07:43
Bacteria use ECF sigma factors to maintain metal homeostasis. They regulate the expression of genes either to import metals under conditions of metal depletion or to reduce toxicity when metal concentrations are excessive. These adaptive mechanisms can be complex, consisting of several proteins with different cell locations, or very simple, consisting of only the sigma factor capable of sensing...
Wed, 06/12/2019 - 01:13
Available online 10 June 2019 Author(s): Moon-Jung Hwang, Se-Jin Kang, Hoe-Seong Kim, Kwang-Won LeeAbstractPolycyclic aromatic hydrocarbons (PAHs) are primarily produced during the incomplete combustion of organic matter. PAHs are suspected endocrine disruptors and possible carcinogenic materials. The major sources of human exposure to PAHs are inhaled fumes and food. The aim of this study was to...
Wed, 06/12/2019 - 01:13
Publication date: Available online 11 June 2019 Environmental ResearchAuthor(s): Yan Li, Xianyu Wang, Leisa-Maree L. Toms, Chang He, Peter Hobson, Peter D. Sly, Lesa L. Aylward, Jochen F. MuellerAbstractThis study aimed to assess pesticide concentration and composition trends associated with age and sex in Australian infants and toddlers. Individual urine samples (n = 400) were collected in 2014/...
Mon, 06/10/2019 - 01:13
Available online 8 June 2019 Author(s): Diana Angélica Varela-Martínez, Miguel Ángel González-Curbelo, Javier González-Sálamo, Javier Hernández-BorgesAbstractIn this work, three versions of the QuEChERS method (original, AOAC 2007.01 and CEN 15662) were evaluated for the extraction of 38 multiclass pesticides from a mixture of five dried fruits: (strawberry, blackberry, passion fruit, pineapple...
Mon, 06/10/2019 - 01:12
Publication date: Available online 8 June 2019 Food and Chemical ToxicologyAuthor(s): A.M. Api, D. Belsito, D. Botelho, M. Bruze, G.A. Burton, J. Buschmann, M.L. Dagli, M. Date, W. Dekant, C. Deodhar, M. Francis, A.D. Fryer, L. Jones, K. Joshi, S. La Cava, A. Lapczynski, D.C. Liebler, D. O'Brien, A. Patel, T.M. Penning
Sun, 06/09/2019 - 01:14
Available online 7 June 2019 Author(s): Chong Teng, Shimin Wu, Guangyi GongAbstractIn this study, we have investigated the effect of laccase from Aspergillus niger on the oxidation indices and polycyclic aromatic hydrocarbon (PAH) and oxygenated PAH (OPAH) content in waste cooking oil after frying nugget, pumpkin pie and youtiao. The acid value remained almost same while the peroxide value saw...
Sun, 06/09/2019 - 01:14
Available online 8 June 2019 Author(s): Camilo Rivera-Vera, Guillermo Lasarte-Aragonés, Manuel A. Bravo, Daniela Muñoz-Lira, Ricardo Salazar, Carla Toledo-NeiraAbstractA rapid, and sensitive analytical method based on the use of Dispersive Liquid-Liquid Microextraction, ionic liquids and High-performance liquid chromatography equipped with a fluorescence detector for determination of six...
Sat, 06/08/2019 - 01:13
Available online 7 June 2019 Author(s): Daniel B. Alcântara, Tatiana S. M. Fernandes, Hélio O. Nascimento, Amanda F. Lopes, Marília G. G. Menezes, Ari C. A. Lima, Tecia V. Carvalho, Patricia Grinberg, Maria Aparecida L. Milhome, André H. B. Oliveira, Helena Becker, Guilherme J. Zocolo, Ronaldo F. NascimentoAbstractThis manuscript is a bibliographic review about analyses of different classes of...
Thu, 06/06/2019 - 01:11
Publication date: 30 October 2019 , Volume 296Author(s): Li Zhao, Ting Zhou, Fangfang Yan, Xiaoling Zhu, Qun Lu, Rui LiuAbstractThe potential synergistic effects of Flavan-3-ols to inhibit the formation of acrylamide have attracted wide attention. This study aims to investigate the synergistic inhibitory effects of the B-type procyanidin and flavan-3-ols monomer on acrylamide production in food...
Wed, 06/05/2019 - 17:00
Carolin Fechner, Matthias Greiner, Helmut Heseker, Oliver Lindtner Cocoa contains aluminium and cadmium as environmental contaminants while concentrations are supposed to be country of origin-related. Integrating origin in dietary exposure assessment could refine calculations. Averages or higher percentiles of concentrations in cocoa powder from German Food Monitoring (GFM) and cocoa consumption...
Wed, 06/05/2019 - 01:12
Available online 3 June 2019 Author(s): Renata De O. Silva, Marília G.G. Menezes, Rubens C. Castro, Crisiana De A. Nobre, Maria A.L. Milhome, Ronaldo F. Do NascimentoAbstractThe intensive use of pesticides has led to the need to optimize analytical methodologies for the control of residues in food. The present study aims to compare the efficiency of different ion sources (Eletrospray Ionization-...
Tue, 06/04/2019 - 11:04
In this paper, comparative study on fresh and frozen tomatoes of organic and conventionally cultivated crops was performed. Fruits of tomato cv. Rio Grande© were used and stored at 18°C for 12 months. Quality parameters of ascorbic acid, lycopene, β‐carotene, glucose, fructose and proteins, pH, color, acidity, water‐soluble solids, and elements and azoxystrobine were measured. The results showed...
Tue, 06/04/2019 - 05:32
Abstract Fresh fruits and vegetables are a rich source of micronutrients. However, many foodborne illnesses have been linked to the consumption of fresh fruits and vegetables as they are reported to harbor contaminants such as microorganisms and pesticides. Recently reported foodborne outbreaks have been linked to a diverse group of fruits and vegetables due to the presence of various pathogens...
Sat, 06/01/2019 - 01:14
Available online 31 May 2019 Author(s): Elisane O. dos Santos, Julia O. Gonzales, Joana C. Ores, Liziane C. Marube, Sergiane S. Caldas, Eliana B. Furlong, Ednei G. PrimelAbstractSand was studied as a solid support in ultrasound-assisted matrix solid-phase dispersion (UA–MSPD) for the extraction of different pesticide classes, including organophosphates, carbamates, triazoles and pyrethroids from...
Sat, 06/01/2019 - 01:14
Available online 31 May 2019 Author(s): Fateme Samiee, Mostafa Leili, Javad Faradmal, Zahra Torkshavand, Gholamreza AsadiAbstractHeavy metal toxicity is related with a number of diseases, but the problem increases many-fold when toxic metals are found in breast milk, the basic food item in a vulnerable age group. Twenty milk samples from lactating women were collected from rural areas of arsenic-...
Sat, 06/01/2019 - 01:14
Publication date: Available online 30 May 2019 Environmental ResearchAuthor(s): Irene van Woerden, Meg Bruening, Jessica Montresor-López, Devon C. Payne-SturgesAbstractBackgroundEmerging adulthood (ages 18–25 years) is a key turning point in the life course characterized by particularly poor eating behaviors (e.g., low in fruits and vegetables, and high in fast food) and weight gain. Emerging...
Fri, 05/31/2019 - 01:12
Publication date: 15 October 2019 , Volume 295Author(s): Kangni Chen, Xiaoxue Yang, Zhan Huang, Shiliang Jia, Yuqi Zhang, Jing Shi, Hui Hong, Ligeng Feng, Yongkang LuoAbstractFish scales are usually discarded or used to produce fish meal, etc. In order to enhance their utility, we produced the gelatin hydrolysates from fish scales (FSGH) and they were heated with glucose, xylose, and ribose to...
Sat, 05/25/2019 - 01:11
Publication date: Available online 24 May 2019 Environmental ResearchAuthor(s): Christian Sonne, Katrin Vorkamp, Anders Galatius, Line Kyhn, Jonas Teilmann, Rossana Bossi, Jens Søndergaard, Igor Eulaers, Jean-Pierre Desforges, Ursula Siebert, Rune DietzAbstractThe overall aim of the present study was to assess human exposure to environmental contaminants from consumption of harbour seal (Phoca...

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