Chemical contaminants

Sat, 02/15/2020 - 03:29
Acrylamide was not detected after high hydrostatic pressure (HHP) of four different table olive varieties (Azeitera, Carrasqueña, Conserva de Elvas, and Morisca). Hydroxytyrosol, tyrosol, oleuropein, procyanidin B1, catechin, vanillic acid, caffeic acid, syringic acid, epicatechin, p‐coumaric acid, and verbascoside were the most important phenols found in fresh olives and after HHP treatment. The...
Sat, 02/15/2020 - 03:28
The consumption of pesticide residues contaminated shiitakes resulted in important health issues in humans. This study evaluated the effects of classic household processing on six different pesticides used in shiitake culture, detailed in pesticide residue behavior and processing factors (PFs). Our results demonstrated that stir‐frying or frying reduced the residue levels of all six pesticides....
Sat, 02/15/2020 - 03:26
Pesticide loads and associated toxicity can be significantly reduced using integrated vegetated treatment systems, which remove moderately soluble and hydrophobic pesticides, but need a sorbent material to remove more soluble pesticides. Neonicotinoids such as imidacloprid are widely used insecticides, acutely toxic, and have been linked to a range of ecological effects. Laboratory experiments...
Sat, 02/15/2020 - 03:25
Mebendazole is an anthelmintic drug used in cattle production. However, residues may occur in produced food and in excretions, jeopardizing population health. A method based on micellar liquid chromatography (MLC) was developed to determine mebendazole in dairy products (milk, cheese, butter, and curd) and nitrogenous waste (urine and dung) from bovine animals. Sample treatment was expedited to...
Fri, 02/14/2020 - 03:33
Author(s): Demetris Kafouris, Andri Koukkidou, Eftychia Christou, Militsa Hadjigeorgiou, Stelios YiannopoulosAbstractThe study highlights the investigation of the presence of polycyclic aromatic hydrocarbons (PAHs) in traditionally smoked meat products and charcoal grilled meat. Specifically, the levels of benzo(a)anthracene (BaA), chrysene (Chr), benzo(b)fluoranthene (BbF) and benzo(a)pyrene (...
Fri, 02/14/2020 - 03:28
Polychlorinated biphenyls belong to a class of hazardous and environmental pollutants. GC separation and experimental relative retention time evaluation of these compounds on a poly (94% methyl/5% phenyl) silicone based capillary non‐bonded and cross‐linked column are time‐consuming and expensive. In this study, relative retention times were estimated using two‐dimensional images of molecules...
Fri, 02/14/2020 - 03:25
Abstract Aims Polygonum hydropiper L. and Polygonum lapathifolium L. are two of the well-known indigenous Mn-hyperaccumulators. Enterobacter sp. FM-1 is a plant growth-promoting bacterium (PGPB) that we found in our previous study. We intended to develop a novel strategy to improve Mn and Cd co-contaminated soil phytoremediation by using a Mn and Cd-resistant bacterium for soil bioaugmentation...
Thu, 02/13/2020 - 03:40
Cannabidiol (CBD) food supplements made of Cannabis sativa L. extracts have quickly become popular products due to their health-promoting effects. However, potential contaminants, such as mycotoxins and pesticides, can be coextracted during the manufacturing process and placed into the final product. Accordingly, a novel methodology using ultra-high-performance liquid chromatography coupled with...
Wed, 02/12/2020 - 10:53
Author(s): Sun Jiaxin, Wang Shengchen, Cao Yirong, Wang Shuting, Li ShuAbstractCadmium (Cd) is a bioaccumulative toxic heavy metal element that has been shown to cause irreversible damage to the immune system once contaminated with water, thereby jeopardizing the health of fish and other aquatic organisms. Neutrophils react against multiple invading pathogens through different mechanisms. The...
Wed, 02/12/2020 - 03:35
by Amanda D. French, Katherine Shaw, Melanie Barnes, Jaclyn E. Cañas-Carrell, Warren C. Conway, David M. Klein Many studies have used grit (in the form of lead (Pb) pellets) presence in avian gizzards as an indicator of Pb shot exposure. However, due to nearly complete pellet absorption in gizzards or rapid passage of pellets, the absence of Pb shot presence in a gizzard does not confirm lack of...
Wed, 02/12/2020 - 03:33
Author(s): Keqiang Wei, Yue Wei, Changxia SongAbstractThere has been extensive research on local and systemic oxidative stress and immunosuppression in cadmium exposed crustaceans, but the underlying mechanisms remain to be elucidated. Because of multiple functions of epithelial cells, such as storing and detoxifying heavy metals, producing and secreting immune-related molecules (i.e. hemocyanin...
Wed, 02/12/2020 - 03:26
Chlorpyrifos is a poisonous pesticide that is highly toxic to fish and aquatic organisms. However, there are fewer reports about how chlorpyrifos influences the redox balance of immune cells. Herein, the head kidney tissue treated with chlorpyrifos to do transcriptome analysis and TCR γ was screened out. Subsequently, we established TCR γ knockdown and overexpression carp head kidney lymphocyte...
Wed, 02/12/2020 - 03:26
Ferroelectric materials, and more specifically ferroelectric domain walls (DWs) have become an area of intense research in recent years. Novel physical phenomena have been discovered at these nanoscale topological polarisation discontinuities by mapping out the polarisation in each atomic unit cell around the DW in a scanning transmission electron microscope (STEM). However identifying these...
Wed, 02/12/2020 - 03:25
Methylmercury (MeHg) is a neurotoxic pollutant that bioaccumulates and biomagnifies in aquatic food webs, impacting the health of piscivorous wildlife and human consumers of predatory fish. While fish mercury levels have been correlated with various biotic and abiotic factors, many studies only measure adults to characterize the health of locally fished populations, omitting information about how...
Wed, 02/12/2020 - 03:24
People can come across news and other internet offerings in a variety of ways, for example, by visiting their favorite websites, using search engines, or following recommendations from contacts on social media (1). These routes do not necessarily lead people to the same venues. While traditionally considered as an important...
Tue, 02/11/2020 - 03:36
Author(s): Shahnawaz Ahmad Bhat, Fahmina Zafar, Aftab Hossain Mondal, Azar Ullah Mirza, Qazi Mohd Rizwanul Haq, Nahid NishatAbstractRemoval of harmful dyes and inhabitation of bacterial growth is one of the outstanding priorities in both environmental and industrial applications. The recognition of the alarming industrial discharge and insufficiency of fresh water has prompted us to develop eco-...
Tue, 02/11/2020 - 03:32
Food contamination with antibiotic residues has become a worldwide problem due to the heavy and improper use of antibiotics. The development of fast, high-throughput, easy, and economical screening methods for the detection of antibiotic residues is an important requirement as an alternative to the traditional assays. Immunoassays are widespread promising methods that can achieve the conditions...
Mon, 02/10/2020 - 04:09
Author(s): Lalit Goswami, Kannan Pakshirajan, G. PugazhenthiAbstractWastewater from biomass gasification chiefly contains monocyclic (MAHs) and polycyclic aromatic hydrocarbons (PAHs) that are generated by wet scrubbing process of raw synthetic gas during its cleaning process. These MAHs and PAHs are well-known as toxic, mutagenic, and carcinogenic agents which need to be removed prior to their...
Mon, 02/10/2020 - 04:00
Author(s): Mei Cheng, Yingying Zhu, Ziwei Chen, Cuie Guang, Wenli Zhang, Wanmeng MuABSTRACTInulin is a widespread polysaccharide, and it can be bio-transferred to α-D-fructofuranose-β-D-fructofuranose 1,2′:2,1′-dianhydride (DFA I), a potential low-calorie sweetener, via inulin fructotransferase (IFTase, EC 4.2.2.17). In this study, a novel DFA I-forming IFTase was identified and characterized...
Sun, 02/09/2020 - 03:33
Author(s): Mingjie Shi, Zeheng Lin, Lihe Ye, Xinlin Chen, Wenfeng Zhang, Zihan Zhang, Fei Luo, Yungang Liu, Ming ShiAbstractAs an alternative to bisphenol A (BPA), bisphenol F (BPF) has been increasingly used in manufacturing various consumer products. Exposured to BPF may lead to imbalanced immune homeostasis, yet the underlying mechanisms have not been fully elucidated. The present study was...
Sun, 02/09/2020 - 03:32
Author(s): Dongxu Li, Shuhui Xiao, Wen-Na Ma, Zhongping Peng, Dawood Khan, Qian Yang, Xinxun Wang, Xiangying Kong, Baige Zhang, En Yang, Zed Rengel, Jianmin Wang, Xiuming Cui, Qi ChenAbstractPanax notoginseng is a traditional medicinal herb in China. However, the high capacity of its roots to accumulate cadmium (Cd) poses a potential risk to human health. Our previous study showed that nitrate...
Sat, 02/08/2020 - 03:37
by Changjiao Sun, Manli Yu, Zhanghua Zeng, Frédéric Francis, Haixin Cui, François Verheggen Abamectin is a common biocide used to control agricultural insect pests. However, the water insolubility of abamectin may result in extra organic solvent introduced in the environment. To solve this issue, it is desirable to develop nanoformulations to encapsulate abamectin with environment-friendly...
Sat, 02/08/2020 - 03:33
Author(s): Huiying Li, Huaigu Yang, Peng Li, Ming Li, Qianqian Yao, Li Min, Yangdong Zhang, Jiaqi Wang, Nan ZhengAbstractMaillard reaction products (MRPs), produced in the heating of food, might pose adverse effects on human health. As a classical MRP, the toxicity of furosine in kidney tissue is evaluated and the related mechanism is investigated here. We detect the concentration of furosine in...
Sat, 02/08/2020 - 03:25
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a ubiquitous environmental contaminant in the environment. The developmental period is more sensitive to TCDD and there is a possibility that maternal exposure to TCDD may affect in adulthood. Adult female Wistar rats were exposed to 0.5, 1.0, and 2.0 µg/kg TCDD during the critical stage of organogenesis, that is, on GD15. The results revealed a...
Sat, 02/08/2020 - 03:25
The highly heavy metal resistant strain Cupriavidus metallidurans BS1 was isolated from the Zijin gold–copper mine in China. This was of particular interest since the extensively studied, closely related strain, C. metallidurans CH34 was shown to not be only highly heavy metal resistant but also able to reduce metal complexes and biomineralizing them into metallic nanoparticles including gold...
Fri, 02/07/2020 - 04:17
The objective of this study was (i) to analyze antibiotic residues, two which were beta-lactam antibiotics, one tetracycline, and one quinolone in the milk of lactating animals; (ii) to evaluate the interference of the drug ceftiofur which is considered as discard-zero. The SNAPduo™ ST Plus kit was used to evaluate the presence of beta-lactam antibiotics and tetracyclines in natural milk....
Fri, 02/07/2020 - 04:14
Author(s): Qingrui Zhang, Shuaiqi Zhang, Zhixue Zhao, Meng Liu, Xiaofeng Yin, Yanping Zhou, Yun Wu, Qiuming PengAbstractIn this work, we developed β-lactoglobulin nanofibrils by alkaline-thermal activation methods for Pb removal. The protein fibrils exhibited effective adsorption and selectivity for lead (II) removal, even with coexisting Ca2+/Mg2+/Na+ ions at higher concentrations. Kinetic...
Fri, 02/07/2020 - 04:14
Author(s): Rui Deng, Danlian Huang, Jia Wan, Wenjing Xue, Xiaofeng Wen, Xigui Liu, Sha Chen, Lei Lei, Qing ZhangAbstractPristine biochar, a low-cost, sustainable and environmentally friendly material, has been regarded as an effective potentially toxic elements scavenger for many years. However, with the development of urbanization and industrialization, more types and quantities of potentially...
Fri, 02/07/2020 - 04:09
Author(s): Tânia Cordeiro, Olga Viegas, Marta Silva, Zita E. Martins, Iva Fernandes, Isabel M.L.P.V.O. Ferreira, Olívia Pinho, Nuno Mateus, Conceição CalhauAbstractThe effect of five different vinegars, applied as a seasoning, on the formation of polycyclic aromatic hydrocarbons (PAH) in charcoal-grilled pork loin was investigated.PAH were assayed using acetonitrile based-extraction and high-...
Fri, 02/07/2020 - 03:55
Pigeon pea (Cajanus cajan) is an important orphan crop mainly grown by smallholder farmers in India and Africa. Here we present the first pigeon pea pangenome based on 89 accessions mainly from India and the Philippines, showing that there is significant genetic diversity in Philippine individuals that is not present in Indian individuals. Annotation of variable genes suggests that they are...
Fri, 02/07/2020 - 03:51
In this work, the content of polycyclic aromatic hydrocarbons (PAHs) in total suspended particles and particulate matter with an aerodynamic diameter ≤ 2.5 µm (PM2.5) was analyzed using gas chromatography–mass spectrometry. In addition, a sequential chemical analysis of C-rich particles was performed through the parallel coupling of micro-Raman spectroscopy and scanning electron microscopy with X...
Thu, 02/06/2020 - 03:37
Author(s): Fang Li, Jianjun Chen, Xin Hu, Feng He, Eban Bean, Daniel C.W. Tsang, Yong Sik Ok, Bin GaoAbstractPolycyclic aromatic hydrocarbons (PAHs) are widely accumulated in sediments and thus impose great risks to the ecosystem and public health. There is increasing effort on the development of technologies for remediation of PAH-contaminated sediments. Adsorption is one of the most promising...
Thu, 02/06/2020 - 03:33
Author(s): Aponte Humberto, Herrera Wence, Cameron Clare, Black Helaina, Meier Sebastian, Paolini Jorge, Tapia Yasna, Cornejo PabloAbstractCopper (Cu) mining has to address a critical environmental issue related to the disposal of heavy metals and metalloids (HMs). Due to their deleterious effects on living organisms, Cu and arsenic (As) have gained global attention, and thus their monitoring in...
Wed, 02/05/2020 - 03:34
Author(s): Haibin Zhang, Zhouyu Wang, Lingxue Meng, Hongxuan Kuang, Jian Liu, Xuejing Lv, Qihua Pang, Ruifang FanAbstractHumans from fetal to adult stages are chronically and passively exposed to bisphenol A (BPA, an endocrine disruptor) due to its ubiquitous existence in daily life. To investigate the long-term neurotoxicity of maternal exposure to BPA for offspring, mice were used as the animal...
Wed, 02/05/2020 - 03:34
Author(s): Liang Gao, Youdan Dong, Ren Lin, Yuan Meng, Fengjuan Wu, Lihong JiaAbstractBisphenol A (BPA) can inhibit the differentiation and function of regulatory T cells (Treg), and affect the balance of helper T cell (Th) 1/Th2, therefore, the immunotoxicity of BPA has attracted widespread attention in recent years, but its mechanism is not clear. The main aim of this study was to explore the...
Wed, 02/05/2020 - 03:33
Author(s): Jinzhong Yang, Haibin Yu, Zhen Xie, Yufei Yang, Xiaoyan Zheng, Jingxing Zhang, Qifei Huang, Tao Wen, Jianyuan WangAbstractThe thermal processes of cement kilns are sources of polybrominated dibenzofurans and dioxins (PBDD/Fs); however, when co-processing decabromodiphenyl ether (BDE-209) soil in cement kilns, very few reports have investigated the mechanism of PBDD/Fs formation from...
Wed, 02/05/2020 - 03:33
Author(s): Jiamei Zhang, Fei Liu, He Huang, Rujing Wang, Baile XuAbstractCoal is one of the most important fossil fuels for energy, but it can cause serious polycyclic aromatic hydrocarbon (PAH) pollution to the environment. In this work, the distribution, sources, influencing factors, and risk assessment of PAHs were studied in a soil of typical coal resource city, Huainan, China. The total...
Wed, 02/05/2020 - 03:31
By utilizing the coffee‐ring effect and microfluidic paper‐based analytical devices (µPADs), this study improved the sensitivity of the determination of norfloxacin in four different food matrices. Micro‐PADs in this study were fabricated by designing and embedding wax channels onto cellulose‐based filter paper through printing and subjecting the paper to heat to allow the wax to penetrate the...
Wed, 02/05/2020 - 03:28
Bisphenol A (BPA), a very important raw material in the plastics industry, is an endocrine‐disrupting chemical in teleost fish. Although BPA induces testis‐ova and sex reversal in teleost fish species, the molecular mechanism remains unclear. We evaluated the effects of BPA (measured concentrations: 45, 92, 326, 1030 and 3406 μg/L) on Japanese medaka (Oryzias latipes) using OECD TG234 (2011, Fish...
Wed, 02/05/2020 - 03:26
Acrylamide (AA) is a food contaminant present in a wide range of frequently consumed foods, which makes human exposure to this toxicant unfortunately unavoidable. However, efforts to reduce the formation of AA in food have resulted in some success. This review aims to summarize the occurrence of AA and the potential mitigation strategies of its formation in foods. Formation of AA in foods is...
Tue, 02/04/2020 - 04:11
by Rana Adnan Tahir, Afsheen Bashir, Muhammad Noaman Yousaf, Azka Ahmed, Yasmine Dali, Sanaullah Khan, Sheikh Arslan Sehgal Hypertension is considered as one of the most common diseases that affect human beings (both male and female) due to its high prevalence and also extending widely to both industrialize and developing countries. Angiotensin-converting enzyme (ACE) has a significant role in...
Tue, 02/04/2020 - 03:46
Despite the significant advances of antibodies as therapeutic agents, there is still much room for improvement concerning the discovery of these macromolecules. Here, we present a new synthetic cell-based strategy that takes advantage of eukaryotic cell biology to produce highly diverse antibody libraries and, simultaneously, link them to a high-throughput selection mechanism, replicating B cell...
Tue, 02/04/2020 - 03:45
The original article has published with the incorrect article title.
Tue, 02/04/2020 - 03:42
Context:Heavy metals, including thallium and lead, are introduced to illicit drug users’ body as a result of using drugs such as cocaine and heroin.Objective:This study aimed to determine urine, blood, and hair thallium (Tl) concentrations in illicit opioid users along with the relevant clinical signs and symptoms consistent with thallotoxicosis and to compare them with the corresponding...
Mon, 02/03/2020 - 03:31
Author(s): Liang Lyu, Xiaoting Jin, Zhuoyu Li, Sha Liu, Yi Li, Ruijun Su, Huilan SuAbstractTetrabromobisphenol A (TBBPA) and its derivatives are the common flame-retardants that may increase the risk of development of many types of cancers, including liver cancer. However, the effects of TBBPA in the development and progression of liver cancer remains unknown. This study investigated the...
Mon, 02/03/2020 - 03:31
LWT
Author(s): Moira Ledbetter, Leanne Bartlett, Alberto Fiore, Gary Montague, Keith Sturrock, Ged McNamaraAbstractThis paper considers the potential for identifying industrial manufacturing conditions that will lead to high acrylamide formation in potato crisp manufacture. Considering the available historical industrial processing data, initial tests were undertaken to identify the degree of...
Mon, 02/03/2020 - 03:26
In the present study, a multi-biomarker approach was used to assess the biological effects of metal pollution in the southern lagoon of Tunis, on clam Ruditapes decussatus both in “hot” (in summer) and “cold” (in winter) seasons. Clams were collected in August 2015 and February 2016 from three sites of the lagoon and from Louza considered a reference site. The concentrations of five trace metals...
Sun, 02/02/2020 - 03:33
Author(s): Xin Sui, Jun Yang, Guangzhou Zhang, XiaoFeng Yuan, WanHua Li, JianHai Long, Yuan Luo, Yunfeng Li, Yongan WangAbstractAcrylamide (AA) constitutes an important industrial chemical agent and well-known neurotoxin. However, the mechanism underlying AA-mediated neurotoxicity is extremely complicated and controversial. In this study, we found that activation of the NLR family pyrin domain...

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