Chemical contaminants

Thu, 06/15/2017 - 01:11
Nancy Weiland-Bräuer, Martin A. Fischer, Karl-Werner Schramm, Ruth A. Schmitz
Wed, 06/14/2017 - 00:00
Abstract Lignocellulosic biomass from various types of wood has become a renewable resource for production of biofuels and biobased chemicals. Because xylan is the major component of wood hemicelluloses, highly efficient enzymes to enhance xylan hydrolysis can improve the use of lignocellulosic biomass. In this study, a xylanolytic gene cluster was identified from the crude oil-...
Wed, 06/07/2017 - 08:12
Publication date: November 2017 , Volume 81 Author(s): Fei Lu, Gunter K. Kuhnle, Qiaofen Cheng Formation of heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs) was examined to evaluate the impact of using vegetable oil as fat replacement on carcinogen formation in meat product. Pork patties were formulated with 40% fat replacement by olive oil, sunflower oil or grape...
Wed, 06/07/2017 - 04:09
, Volume 107, Issue 7, Page 1049-1050, July 2017.
Tue, 06/06/2017 - 17:00
Timothy M. Ghaly, Louise Chow, Amy J. Asher, Liette S. Waldron, Michael R. Gillings Class 1 integrons have played a major role in the global dissemination of antibiotic resistance. Reconstructing the history of class 1 integrons might help us control further spread of antibiotic resistance understanding how human activities influence microbial evolution. Here we describe a class 1 integron that...
Tue, 06/06/2017 - 03:11
Abstract The aim of this study was evaluation of resistance-encoding genes distribution among extended spectrum beta-lactamase (ESBL)-producing Escherichia coli isolated from retail poultry meat. A total of 123 raw poultry breasts meat samples from different batches (sample per batch) were taken from randomly selected six Lithuanian retail markets. The study showed high contamination with E. coli...
Mon, 06/05/2017 - 09:30
Abstract AimsThis study aimed to evaluate the effect of five cadmium-tolerant endophytic plant growth-promoting bacteria (PGPB) strains on the biomass and cadmium tolerance and accumulation of the bioenergy plant switchgrass (Panicum virgatum L.) under cadmium (Cd)-contaminated conditions. Methods and ResultsFive bacterial strains (Bj05, Le14, Ps14, So02, and Bo03) that could tolerate up to 2000...
Sun, 06/04/2017 - 17:20
Publication date: November 2017 , Volume 81 Author(s): Diogo R.D. Molle, Caroline Abballe, Fernanda M.L. Gomes, Regina P.Z. Furlani, Silvia A.V. Tfouni Polycyclic aromatic hydrocarbons (PAHs) are compounds formed during incomplete combustion of organic matter; some are considered to be potentially carcinogenic. The drying step of the seeds or grains is considered the main source of...
Sat, 06/03/2017 - 17:01
Publication date: August 2017 Food and Chemical Toxicology, Volume 106, Part A Author(s): Ah Hyun Kim, Hye Jeong Chun, Seulah Lee, Hyung Sik Kim, Jaewon Lee Tetrabromobisphenol A (TBBPA) is a brominated flame retardant that is commonly used in commercial and household products, such as, computers, televisions, mobile phones, and electronic boards. TBBPA can accumulate in human body...
Sat, 05/27/2017 - 23:45
Publication date: November 2017 , Volume 81 Author(s): Zhaowei Sun, Liuyang Tian, Min Guo, Xiaotong Xu, Qian Li, Haibo Weng A double-film screening card, composed of an enzyme (acetylcholinesterase, AChE) and its substrate (indoxyl acetate) films, was developed for simple and rapid screening of organophosphate and carbamate pesticide residues. On the card, indoxyl acetate is...
Sat, 05/27/2017 - 05:45
Abstract Acrylic acid, N-acetyl-glucosamine and glucosamine were investigated for their role in the formation of acrylamide in California-style black ripe olives [CBROs]. Levels of acrylic acid and glucosamine are reported for the first time in fresh (333.50 ± 21.88 and 243.59 ± 10.06 nmol/g, respectively) and in brine-stored olives (184.50 ± 6.02 and 165.88 ± 11.51 nmol/g, respectively)....
Mon, 05/22/2017 - 16:39
Publication date: August 2017 Food and Chemical Toxicology, Volume 106, Part A Author(s): Mengyao Zhao, Fu Sheng Lewis Wang, Xiaosong Hu, Fang Chen, Hing Man Chan Acrylamide (AA) is a common food contaminant formed during food heat processing that has neurotoxic effects. We hypothesize that AA induces oxidative stress in astrocytes and microglia, leading to neurotoxicity. Oxidative...
Fri, 05/19/2017 - 17:00
L. K. Schæbel, E. C. Bonefeld-Jørgensen, H. Vestergaard, S. Andersen Concentrations of persistent organic pollutants (POPs) are high in Inuit living predominately on the traditional marine diet. Adverse effects of POPs include disruption of the immune system and cardiovascular diseases that are frequent in Greenland Inuit. We aimed to assess the association between exposure to POPs from the...
Thu, 05/18/2017 - 17:00
Yan Song, Yibana Wang, Weifeng Mao, Haixia Sui, Ling Yong, Dajin Yang, Dingguo Jiang, Lei Zhang, Yunyun Gong Cadmium, a toxic heavy metal, is widely present in food. It has been reported that chronic cadmium exposure is associated with kidney disease, osteoporosis, cardiovascular disease and cancer. The aim of this study was to assess the dietary cadmium exposure and potential health risk in...
Thu, 05/18/2017 - 02:26
Publication date: June 2017 , Volume 100, Issue 6 Author(s): Elaine O'Brien, Susan Mills, Alleson Dobson, L. Mariela Serrano, John Hannon, Siobhan P. Ryan, Kieran N. Kilcawley, Johannes B. Brandsma, Wilco C. Meijer, Colin Hill, R. Paul Ross We assessed the efficacy of Lactobacillus nodensis CSK964 as an adjunct culture in Gouda cheese under various industrial conditions...
Wed, 05/17/2017 - 13:30
LWT
Publication date: 15 September 2017 Source:LWT - Food Science and Technology, Volume 83 Author(s): Elena Bartkiene, Donata Vizbickiene, Vadims Bartkevics, Iveta Pugajeva, Vita Krungleviciute, Daiva Zadeike, Paulina Zavistanaviciute, Grazina Juodeikiene The aim of this study was to evaluate the potential use of Pediococcus acidilactici LUHS29 immobilized in apple pomace in case...
Tue, 05/16/2017 - 06:20
Summary Through Minos transposon mutagenesis we obtained A. nidulans mutants resistant to 5-fluorouracil due to insertions into the upstream region of the uncharacterized gene nmeA, encoding a Major Facilitator Superfamily (MFS) transporter. Minos transpositions increased nmeA transcription, which is otherwise extremely low under all conditions tested. To dissect the function of NmeA we used...
Mon, 05/15/2017 - 17:00
Wang Cai, Zhuxin Ma, Chunyan Yang, Lin Wang, Wenzhi Wang, Guigang Zhao, Yupeng Geng, Douglas W. Yu The Honghe-Hani landscape in China is a UNESCO World Natural Heritage site due to the beauty of its thousands of rice terraces, but these structures are in danger from the invasive crayfish Procambarus clarkii. Crayfish dig nest holes, which collapse terrace walls and destroy rice production. Under...
Sat, 05/13/2017 - 16:24
Publication date: July 2017 Food and Chemical Toxicology, Volume 105 Author(s): Martin Olof Larsson, Vibe Sloth Nielsen, Christian Ørsted Brandt, Niels Bjerre, Frank Laporte, Nina Cedergreen Relatively few studies are available on the combined risk of realistic dietary pesticide exposure. Despite available studies showing low risk, public concern remains. Recent methods used to...
Fri, 05/12/2017 - 04:36
Publication date: October 2017 , Volume 80 Author(s): Hexing Wang, Lingshuang Ren, Xin Yu, Jing Hu, Yue Chen, Gengsheng He, Qingwu Jiang In this study, we screened 20 common antibiotic (three tetracyclines, four fluoroquinolones, three macrolides, three β-lactams, four sulfonamides, and three phenicols) residues in 125 samples from common types of livestock and poultry meat,...
Thu, 05/11/2017 - 12:15
Abstract This work mainly examined how to remove cadmium in rice by fermentation, the removal mechanisms, and the quality of fermented rice in order to utilize cadmium-contaminated rice. The fermentation time, temperature, liquid ratio, inoculant levels, and number of washes were varied to optimize the efficiency of cadmium removal. The optimum fermentation process, in which the rate of cadmium...
Thu, 05/11/2017 - 04:35
Publication date: October 2017 , Volume 80 Author(s): Jianhua Wang, Junying Tao, Chenchen Yang, May Chu, Honming Lam Following a variety of incidents in China relating to food poisoning due to the presence of pesticide residues, it is crucial to correct for farmers’ unsafe and improper practices towards pesticide use. Although most studies have focused on the role of external...
Thu, 05/11/2017 - 04:35
Publication date: October 2017 , Volume 80 Author(s): Andreja Rajkovic, Nada Smigic, Ilija Djekic, Dragana Popovic, Nikola Tomic, Nada Krupezevic, Mieke Uyttendaele, Liesbeth Jacxsens The Food Safety Management System – Diagnostic Instrument (FSMS-DI) was used to determine context factors, core control and assurance activities, as well as food safety outputs for three Global G...
Fri, 05/05/2017 - 17:00
Keke Chang, Shun Wang, Hao Zhang, Qingqian Guo, Xinran Hu, Zhili Lin, Haifeng Sun, Min Jiang, Jiandong Hu A biosensing system with optical fibers is proposed for the colorimetric detection of melamine in liquid milk samples using the localized surface plasmon resonance (LSPR) of unmodified gold nanoparticles (AuNPs). The biosensing system consists of a broadband light source that covers the...
Thu, 05/04/2017 - 19:46
Publication date: June 2017 Food and Chemical Toxicology, Volume 104 Author(s): Silke Jacobs, Isabelle Sioen, Liesbeth Jacxsens, José L. Domingo, Jens J. Sloth, António Marques, Wim Verbeke Although seafood is a nutritious protein source, due to marine environmental pollution, seafood may also be a source of contaminants. The results obtained within the FP7-ECsafeSEAFOOD-project...
Thu, 05/04/2017 - 04:26
Publication date: October 2017 , Volume 80 Author(s): Esther Lima de Paiva, Raquel Fernanda Milani, Bárbara Sia Boer, Késia Diego Quintaes, Marcelo Antonio Morgano The objective of this work was to determine the organic and total mercury contents in twelve fish species used in preparing sashimi in Japanese restaurants and estimate the exposure to organic mercury due to the...
Wed, 05/03/2017 - 17:00
Yu Cheng Zhu, Jianxiu Yao, John Adamczyk, Randall Luttrell Imidacloprid is the most widely used insecticide in the world. In this study, we used spraying methods to simulate field exposures of bees to formulated imidacloprid (Advise® 2FL) alone and binary mixtures with seven pesticides from different classes. Synergistic toxicity was detected from mixtures of Advise (58.6 mg a.i./L imidacloprid...
Tue, 05/02/2017 - 16:01
Publication date: Available online 2 May 2017 Food and Chemical Toxicology Author(s): Trevor J. Fish, Abby D. Benninghoff Polycyclic aromatic hydrocarbons (PAHs) comprise an important class of environmental pollutants that are known to cause lung cancer in animals and are suspected lung carcinogens in humans. Moreover, evidence from cell-based studies points to PAHs as modulators of the...
Mon, 05/01/2017 - 00:00
Residual pesticides in agricultural production are one of the major food safety concerns around the world. In this study, we investigated the amount of isofenphos-methyl in corns by using surface-enhanced Raman spectroscopy (SERS) coupled with chemometric methods. The highest isofenphos-methyl peak at 1043 cm−1 was used to detect and quantify the amount of isofenphos-methyl...
Mon, 05/01/2017 - 00:00
An efficient and low-cost method of ultrasound-assisted upper liquid microextraction combined with directly molecular fluorescence spectrometry was developed, optimized, and validated for detection of bisphenol A in commercial beverages in cans and plastic bottles. A quick procedure of bisphenol A extraction and cleanup was achieved in one step, namely, ultrasound-assisted...
Mon, 05/01/2017 - 00:00
In this study, a novel molecularly imprinted polymer (MIL@MIP) that could selectively recognize the trichlorfon and monocrotophos was synthesized using metal-organic framework MIL-101 as support material. The prepared MIL@MIP was characterized by Fourier transform infrared, thermogravimetric analysis, scanning electron microscope, static adsorption, kinetic adsorption, and...
Mon, 05/01/2017 - 00:00
Rapid analysis of health hazardous materials is necessary to prevent foodborne illness in food control science. Bisphenol A (BPA) is one of the potentially hazardous materials that may potentially create adverse health effects, if its concentration level in food is not controlled. In this work, carbon paste electrode has been modified with CdO nanoparticles and ionic liquid (...
Sat, 04/29/2017 - 00:00
A novel bioactive peptide named τ-AnmTx Ueq 12-1 (short name Ueq 12-1) was isolated and characterized from the sea anemone Urticina eques. Ueq 12-1 is unique among the variety of known sea anemone peptides in terms of its primary and spatial structure. It consists of 45 amino acids including 10 cysteine residues with an unusual distribution and represents a new group of sea anemone peptides. The...
Thu, 04/27/2017 - 00:11
Abstract A Lactobacillus plantarum strain was used for the production of rye, wheat, barley, and oat sourdoughs, and the influence of different sourdoughs on mixed rye–wheat bread quality parameters and acrylamide formation was evaluated. L. plantarum LUHS135 demonstrated versatile carbohydrate metabolism, good growth and acidification rates, and the ability to excrete amylolytic and proteolytic...
Mon, 04/24/2017 - 21:54
Publication date: October 2017 , Volume 80 Author(s): Alicja Zachara, Dorota Gałkowska, Lesław Juszczak The aim of this work was to determine the level of contamination of different kinds of commercial smoked meat and fish products from Polish market with polycyclic aromatic hydrocarbons (PAHs) for which the limiting values are established in the Commission Regulation (EU) 2015/1125....
Sat, 04/22/2017 - 21:48
Publication date: October 2017 , Volume 80 Author(s): C. Malarkodi, S. Rajeshkumar, G. Annadurai A new approach for simple, competitive and sensitive, dipstick immunoassay (DIA) was developed to detect organophosphorus pesticide. Residual pesticides such as kitazine in fruits and vegetables are one of the major food safety concerns for consumers in the world. It is the alternative...
Thu, 04/20/2017 - 05:31
Abstract Nanoencapsulation can provide a means to effectively deliver antimicrobial compounds and enhance the safety of fresh produce. However, to date there are no studies which directly compares how different nanoencapsulation systems affect fresh produce safety and quality. This study compared the effects on quality and safety of fresh-cut lettuce treated with free and nanoencapsulated natural...
Thu, 04/20/2017 - 00:00
<span class="paragraphSection"><div class="boxTitle">Abstract</div>This study was carried out to evaluate the effect of a multi-carbohydrase complex (<strong>MCC</strong>) rich in xylanase (<strong>Xyl</strong>) and arabinofuranosidase (<strong>Abf</strong>) on overall broiler feed digestibility in broilers. Energy utilization and...
Mon, 04/17/2017 - 21:13
Publication date: September 2017 , Volume 79 Author(s): Wanwisa Wongmaneepratip, Kanithaporn Vangnai The effects of oil types and the pH of marinade were investigated on the formation of carcinogenic polycyclic aromatic hydrocarbons (EPA priority 16 PAHs) in grilled chicken. The formation of PAHs in grilled chicken breast with different marinades after charcoal-grilling for 3 min/side was...
Mon, 04/17/2017 - 21:13
Publication date: September 2017 , Volume 79 Author(s): Eva Doménech, Sebastian Martorell The concept of Food Safety Margin (FSM) was introduced in microbiological risk analysis as an alternative approach to risk characterization within the informed-risk decision-making process. Its aim was to verify compliance with food safety objectives by assessing the effects of uncertainties. This...
Mon, 04/17/2017 - 21:13
Publication date: September 2017 , Volume 79 Author(s): Jangho Hong, Ayato Kawashima, Minami Okamoto, Noriaki Hamada This study reports a new membrane filtration-based cleanup method for the analysis of pesticides. Recovery and cleanup by membrane filtration using 11 different membranes, classified by their molecular weight cut-off, pore size, and material, were examined. Three...

Pages