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Chemical contaminants

Mon, 03/25/2019 - 01:13
Publication date: Available online 23 March 2019 Food and Chemical ToxicologyAuthor(s): Xia Li, Jun-Li Lu, Jian-Xia Sun, Xin-Wei Jiang, Xu-Sheng Li, Ye Li, Rui Jiao, Ling-Min Tian, Wei-Bin BaiAbstractCadmium (Cd) is a poisonous metal that is toxic for male reproduction. Cyanidin-3-O-glucoside (C3G) as typical anthocyanin benefits many organs. In this study, we investigated the protective effects...
Fri, 03/22/2019 - 11:00
This study employed high-throughput quantitative PCR and 16S rRNA sequencing to evaluate the effect of temperature and residual antibiotics on the dynamics of antibiotic resistance genes (ARGs) and microbial communities during anaerobic digestion of swine manure. The abundances of total ARGs and 16S rRNA genes significantly decreased in all of four treatments (25°C, 37°C, and 37°C...
Fri, 03/22/2019 - 00:00
Journal of Agricultural and Food ChemistryDOI: 10.1021/acs.jafc.9b00837
Fri, 03/22/2019 - 00:00
Abstract Arabinofuranosidase plays an essential role in the process of hydrolysis of arabinoxylan (AX). Thermostable, versatile, and efficient arabinofuranosidase is thus of great interest for the biorefinery industry. A GH51 arabinofuranosidase, Abf51, from Hungateiclostridium clariflavum DSM 19732 was heterogeneously expressed in Escherichia coli. Abf51 was found to have an...
Thu, 03/21/2019 - 17:00
Marianna Ranieri, Annarita Di Mise, Graziana Difonzo, Mariangela Centrone, Maria Venneri, Tommaso Pellegrino, Annamaria Russo, Maria Mastrodonato, Francesco Caponio, Giovanna Valenti, Grazia Tamma Cadmium (Cd) is a heavy and highly toxic metal that contaminates air, food and water. Cadmium accumulates in several organs altering normal functions. The kidney is the major organ at risk of damage...
Thu, 03/21/2019 - 01:18
Available online 19 March 2019 Author(s): Zhao Li, Yahong Yuan, Yuanxi Yao, Xin Wei, Tianli Yue, Jianghong MengAbstract:In industrial-scale apple juice concentrate (AJC) processing, 5-hydroxymethylfurfural (5-HMF or 5-(hydroxymethyl)-2-furaldehyde) is a furanic compound that is formed as an intermediate under certain conditions during thermal treatments applied to foods, especially AJC....
Wed, 03/20/2019 - 15:59
ABSTRACT BACKGROUND In the present work, a simple and rapid method was proposed for the preconcentration of cadmium using ultrasound‐assisted temperature‐controlled ionic liquid microextraction (TC‐IL‐LPME). The dispersion of the ionic liquid (1‐Hmim[PF6]) in the aqueous phase was performed by heating it in an ultrasonic bath, followed by cooling in an ice bath. After centrifugation, the...
Mon, 03/18/2019 - 11:18
Elongation factor P (EF-P) facilitates the translation of certain peptide motifs, including those with multiple proline residues. EF-P must be post-translationally modified for full functionality; in Enterobacteria this is accomplished by two enzymes, EpmA and EpmB, which catalyze the β-lysylation of EF-P at a conserved lysine position. Mutations to efp or its modifying enzymes produce...
Sun, 03/17/2019 - 01:12
Available online 15 March 2019 Author(s): Wenli Wang, Long Zhang, Zhengquan Wang, Xichang Wang, Yuan LiuAbstractTakifugu obscurus is famous for its delicious taste. In this study, three peptide fractions from Takifugu obscurus muscle hydrolysates were used to evaluate and compare physicochemical and sensory characteristics after Maillard reaction. Maillard reaction products (MRPs) were analyzed...
Thu, 03/14/2019 - 01:13
Available online 12 March 2019 Author(s): S.T. Narenderan, S.N. Meyyanathan, Veera Venkata Satyanarayana Reddy KarriAbstractThe sample extraction process is considered as the essential step in the pesticide residue analysis, as it provides the base for the detection of the pesticides in trace level. Various factors need to be optimized during the extraction of pesticides due to the complexity of...
Mon, 03/11/2019 - 09:03
Abstract There is a growing interest in using natural antifungal compounds for the preservation of foods. The first experiment of this study was investigated an effect of pomegranate peel extract (PPE) and the essential oil (PPEO) in different concentrations mixed with potato dextrose agar (PDA) on spore germination of Penicillum italicum and Penicillum digitatum. in vivo experiments were...
Sat, 03/09/2019 - 01:12
Available online 8 March 2019 Author(s): Ning Zhang, Baoguo Sun, Xueying Mao, Haitao Chen, Yuyu ZhangAbstractFried allium oil has been widely used in traditional Chinese home cooking and recently has grown in popularity in the food manufacturing industry. Thus, physical and chemical changes during frying process were measured to investigate the flavor formation mechanism in green onion (Allium...
Sat, 03/09/2019 - 00:00
Abstract Even though snacks such as tortilla chips are gaining popularity, the high intake of these products may cause problems related to their fat and acrylamide content. In consequence, this study is aimed at evaluating the effect of pre-fry drying on the absorption of oil, physicochemical characteristics and formation of acrylamide in corn tortilla chips fried in ten...
Fri, 03/08/2019 - 01:14
Available online 6 March 2019 Author(s): Eric Ceballos-Alcantarilla, Consuelo Agulló, Antonio Abad-Somovilla, Antonio Abad-Fuentes, Josep V. MercaderAbstractMonoclonal antibody-based techniques have become a useful analytical technology in the agro-food sector. Nowadays, residues of the recently registered fungicide fluopyram are increasingly being found in quality control programs. In the...
Fri, 03/08/2019 - 01:14
Available online 26 February 2019 Author(s): Mohammad Negarian, Arash Mohammadinejad, Seyed Ahmad MohajeriAbstractIn this study, core-shell lincomycin-imprinted polymers were successfully synthesized and their binding properties evaluated. The functional monomers of methacrylamide and acrylamide were used for synthesis of core and shell, respectively. The optimum synthesized core-shell...
Thu, 03/07/2019 - 01:14
Publication date: 30 July 2019 , Volume 287Author(s): Chenmeng Zhang, Tingting You, Nan Yang, Yukun Gao, Li Jiang, Penggang YinAbstractA novel hydrophobic-SERS substrate platform based on silver nanoparticles (AgNPs) functionalized commercially available filter paper was reported. Compared with conventional substrates, not only could this novel SERS substrate meet the requirements of simple and...
Thu, 03/07/2019 - 01:14
Available online 4 March 2019 Author(s): Andrés J. Rascón, Abdelmonaim Azzouz, Evaristo BallesterosAbstractPolycyclic aromatic hydrocarbons (PAHs) are a group of highly carcinogenic and mutagenic compounds, sixteen of them have been deemed as priority pollutants by the regulation authorities. A method for determination of the 16 EPA's priority PAHs in a variety of meat and fish products is...
Wed, 03/06/2019 - 11:00
Efficient microbial conversion of lignocellulose into valuable products is often hindered by the presence of furfural, a dehydration product of pentoses in hemicellulose sugar syrups derived from woody biomass. For a cost-effective lignocellulose microbial conversion, robust biocatalysts are needed that can tolerate toxic inhibitors while maintaining optimal metabolic activities. A comprehensive...
Sat, 03/02/2019 - 01:11
Publication date: 30 July 2019 , Volume 287Author(s): Eun-Hee Lee, Sung Ku Lee, Min Jung Kim, Seung-Woo LeeAbstractA colorimetric aptasensor was developed for the simple and rapid detection of bisphenol A (BPA). The aptasensor was designed to consist of colloidal gold nanoparticles (AuNPs) and a BPA-specific 24-bp aptamer. The AuNP-aptamer conjugates underwent an electrolyte-induced aggregation...
Fri, 03/01/2019 - 11:48
Abstract Acrylamide, formed in baked and fried plant‐based foods, is reported to induce numerous adverse effects in cells, animals, and humans. Examples from the literature show that processed potato‐ and cereal‐based products are two major food types that seem to contribute the highest amounts of acrylamide to the diet worldwide. To meet both the demand for gluten‐free products and the interest...
Fri, 03/01/2019 - 00:00
An analytical method based on sugaring-out assisted liquid-liquid extraction (SULLE) and HPLC-fluorescence detection has been developed for the determination of bisphenol A (BPA) and bisphenol B (BPB) in royal jelly. Experimental parameters of SULLE including the extraction solvent, amount of phase separation agent, initial concentration of acetonitrile (ACN), and sample size...
Fri, 03/01/2019 - 00:00
Acrylamide, a “possible carcinogen” compound, has been subjected to analytical method development and evaluation in carbohydrate-rich cookie samples in this research. Cookies with different formula and consequently different acrylamide content were evaluated using microextraction method coupled with gas chromatography-mass spectrometry. Xanthydrol was selected as an efficient...
Thu, 02/28/2019 - 00:00
Abstract Heavy metal pollution in agricultural soils has become a widespread serious problem with the rapid industrialization and urbanization in the past two decades. Cadmium (Cd2+) is of the most concern in soils due to its high toxicity. It is necessary to develop remediation strategies to remove or neutralize its toxic effects in Cd-contaminated soil. Microbial...
Mon, 02/25/2019 - 01:11
Publication date: Available online 22 February 2019Source: LWTAuthor(s): Camila Manera, Nair T. Olguin, Bárbara M. Bravo-Ferrada, E. Elizabeth Tymczyszn, Lucrecia Delfederico, Horacio Bibiloni, Adriana C. Caballero, Liliana Semorile, Danay Valdés La HensAbstractSpontaneous malolactic fermentation (MLF) in the North Patagonian region of Argentina may have to bear low environmental temperatures, an...
Fri, 02/22/2019 - 01:06
Publication date: Available online 19 February 2019Source: LWTAuthor(s): Shoubao Yan, Qianqian Tong, Jiaquan GuangAbstractDaqu is the major source of microorganisms, enzymes, flavour compounds, and their precursors in the Chinese liquor production process. In the present study, the yeast community and the volatile compounds of Chinese strong-flavor Daqu during its fermentation were investigated...
Thu, 02/21/2019 - 00:00
The aim of this study was to evaluate the transfer of the most widely used antibiotics in dairy goats from milk to cheese as well as their effect on the cheese-making process and cheese characteristics during ripening. Antibiotic-free milk was spiked individually with 7 veterinary drugs (amoxicillin, benzylpenicillin, cloxacillin, erythromycin, ciprofloxacin, enrofloxacin, and oxytetracycline) at...
Wed, 02/20/2019 - 17:00
Jakob A. Shimshoni, Roy Sperling, Muhammad Massarwa, Yaira Chen, Vijayakumar Bommuraj, Mikhail Borisover, Shimon Barel Beehive products such as honey, beeswax and recently pollen have been regarded for many years as appropriate sentinels for environmental pesticide pollutions. However, despite yearly application of hundreds of approved pesticides in agricultural fields, only a minor fraction of...
Wed, 02/20/2019 - 11:00
To control the spore-forming human pathogen Bacillus cereus, we isolated and characterized a novel endolysin, LysPBC2, from a newly isolated B. cereus phage, PBC2. Compared to the narrow host range of phage PBC2, LysPBC2 showed very broad lytic activity against all Bacillus, Listeria, and Clostridium species tested. In addition to a catalytic domain and a cell wall binding domain, LysPBC2 has a...
Wed, 02/20/2019 - 01:13
Publication date: Available online 18 February 2019Source: LWTAuthor(s): G.D.A. Pinto, I.M. Castro, M.A.L. Miguel, M.G.B. KoblitzAbstractSome microorganisms, such as bacteria and yeasts, show the ability to degrade chlorpyrifos, one of the most commonly used organophosphate pesticides. The aim of the present work was threefold: 1. to investigate the ability of six strains of lactic acid bacteria...
Wed, 02/20/2019 - 00:00
Toxins, Vol. 11, Pages 128: The Diversified O-Superfamily in Californiconus californicus Presents a Conotoxin with Antimycobacterial Activity Toxins doi: 10.3390/toxins11020128 Authors: Johanna Bernáldez-Sarabia Andrea Figueroa-Montiel Salvador Dueñas Karla Cervantes-Luévano Jesús A. Beltrán Ernesto Ortiz Samanta Jiménez Lourival D. Possani Jorge F. Paniagua-Solís Jorge...
Fri, 02/15/2019 - 00:00
Abstract Transcriptional regulatory proteins (TRPs)-based whole-cell biosensors are promising owing to their specificity and sensitivity, but their applications are currently limited. Herein, TRPs were adapted for the extracellular detection of a disease biomarker, uric acid, and a typical pesticide residue, carbaryl. A mutant regulatory protein that specifically recognizes...
Thu, 02/14/2019 - 01:14
Available online 12 February 2019 Author(s): Enrico María Lodolini, Manuel Cabrera-Bañegil, Antonio Fernández, Jonathan Delgado-Adámez, Rosario Ramírez, Daniel Martín-VertedorAbstractAcrylamide and phenolic compounds on both fresh and cooked olives were monitored by HPLC/MS-MS and reversed-phase-HPLC methods along different procedures: elaboration process, high hydrostatic pressure (HHP), cooking...
Tue, 02/12/2019 - 01:14
Publication date: Available online 11 February 2019Source: LWTAuthor(s): Md Mehedi Hassan, Huanhuan Li, Waqas Ahmad, Muhammad Zareef, Jingjing Wang, Shicai Xie, Pingyue Wang, Qin Ouyang, Shaoyun Wang, Quansheng ChenAbstractThe study aimed to extend the applications of surface-enhanced Raman scattering (SERS) – recently one of the most promising and widely employed technique in food safety and...
Tue, 02/12/2019 - 01:12
Available online 10 February 2019 Author(s): Taehoon Lee, Pradeep Puligundla, Chulkyoon MokAbstractBenzo[a]pyrene (BaP), a carcinogenic polycyclic aromatic hydrocarbon, is ubiquitous in nature, including smoked and grilled meats. BaP degradation has attracted attention due to its recalcitrant nature. In this study, low-pressure cold plasma (LPCP) was used to degrade BaP on glass slides and in...
Tue, 02/12/2019 - 00:00
Toxins, Vol. 11, Pages 106: A Recurrent Motif: Diversity and Evolution of ShKT Domain Containing Proteins in the Vampire Snail Cumia reticulata Toxins doi: 10.3390/toxins11020106 Authors: Marco Gerdol Manuela Cervelli Paolo Mariottini Marco Oliverio Sébastien Dutertre Maria Vittoria Modica Proteins of the ShK superfamily are characterized by a small conserved domain (ShKT),...
Mon, 02/11/2019 - 01:16
Publication date: Available online 10 February 2019 Food and Chemical ToxicologyAuthor(s): Samira Eslamizad, Farzad Kobarfard, Christina Tsitsimpikou, Aristides M. Tsatsakis, Kimia Tabib, Hassan YazdanpanahAbstractAcrylamide is a chemical, often present in bread, legally classified as carcinogen, mutagen and reproductive toxicant. Since bread is consumed both world-wide and in Iran, determination...
Mon, 02/11/2019 - 01:14
Publication date: Available online 8 February 2019Source: LWTAuthor(s): Jian Ju, Lijin Shen, Yunfei Xie, Hang Yu, Yahui Guo, Yuliang Cheng, He Qian, Weirong YaoAbstractIn order to explore the safety of bisphenol A (BPA) degradation in food packaging, the degradation effect of six common probiotics to BPA was first explored in this paper. The result showed that the degradation rate of BPA by...
Sat, 02/09/2019 - 01:07
Publication date: Available online 7 February 2019 Food and Chemical ToxicologyAuthor(s): Christina Mantzouki, Despoina Bliatka, Paschalia K. Iliadou, Alexandra Margeli, Ioannis Papassotiriou, George Mastorakos, Eleni Kousta, Dimitrios G. GoulisAbstractBackgroundBisphenol A (BPA) has been associated with male reproductive dysfunction. However, few studies have assessed BPA according to the cause...

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