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Antibiotic residues

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Thu, 05/16/2019 - 11:01
Microcin PDI (MccPDI), a class IIa microcin that is produced by Escherichia coli strains 25 and 284, is known to inhibit foodborne pathogenic enterohemorrhagic E. coli serotypes O157:H7 and O26. Here we demonstrate that MccPDI can inhibit Shigella strains and E. coli isolates that are multidrug resistant, the latter including strains known to cause urinary tract infections in people and companion...
Mon, 04/29/2019 - 20:00
Integrative Analyses of Long Non-coding RNA and mRNA Involved in Piglet Ileum Immune Response to Clostridium perfringens Type C Infection Xiaoyu Huang1, Wenyang Sun1, Zunqiang Yan1, Hairen Shi1, Qiaoli Yang1, Pengfei Wang1, Shenggui Li1, Lixia Liu2, Shengguo Zhao1 and Shuangbao Gun1,3* 1College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China 2College of Life...
Mon, 04/29/2019 - 20:00
Surveillance and Genomics of Toxigenic Vibrio cholerae O1 From Fish, Phytoplankton and Water in Lake Victoria, Tanzania Yaovi M. Gildas Hounmanou1*, Pimlapas Leekitcharoenphon2, Rene S. Hendriksen2, Tamegnon V. Dougnon3, Robinson H. Mdegela4, John E. Olsen1 and Anders Dalsgaard1 1Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen,...
Sat, 04/27/2019 - 01:14
Available online 24 April 2019 Author(s): Ellen De Paepe, Jella Wauters, Mik Van Der Borght, Johan Claes, Steve Huysman, Siska Croubels, Lynn VanhaeckeAbstractA generic extraction and UHPLC-Q-OrbitrapTM-HRMS method was developed for four insect species (mealworm, grasshopper, house cricket and black soldier fly) analyzing a large spectrum of organic chemical contaminants, including pesticides (n=...
Sat, 04/27/2019 - 01:14
Available online 26 April 2019 Author(s): Shouxue Li, Xia Fan, Jiaqi Mei, Guanghui Shen, Lujia Han, Yang Li, Xian Liu, Zengling YangAbstractNear-infrared microscopy (NIRM) technology can analyze different components within a sample while also obtaining spatial information about the sample. No rapid detection methods are available for effectively identifying antibiotic mycelia residues (AMRs) in...
Wed, 04/17/2019 - 12:29
Abstract The present study quantitatively analyzed the occurrence of antibiotic residues in 524 milk samples (492 raw milk samples from dairy farms and 32 commercial milk samples) from Punjab, India using high‐performance liquid chromatography (HPLC). Tetracyclines, sulphonamides, fluoroquinolones (commonly used in veterinary practice in Punjab), and chloramphenicol (banned in food animals in...
Wed, 04/17/2019 - 12:29
Abstract The present study quantitatively analyzed the occurrence of antibiotic residues in 524 milk samples (492 raw milk samples from dairy farms and 32 commercial milk samples) from Punjab, India using high‐performance liquid chromatography (HPLC). Tetracyclines, sulphonamides, fluoroquinolones (commonly used in veterinary practice in Punjab), and chloramphenicol (banned in food animals in...
Tue, 04/16/2019 - 20:00
Structural and Proteomic Changes in Viable but Non-culturable Vibrio cholerae Susanne Brenzinger1*, Lizah T. van der Aart1, Gilles P. van Wezel1, Jean-Marie Lacroix2, Timo Glatter3 and Ariane Briegel1* 1Department of Microbial Biotechnology & Health, Institute of Biology Leiden, Leiden University, Leiden, Netherlands 2Unité de Glycobiologie Structurale et Fonctionnelle, UMR CNRS 8576...
Wed, 04/10/2019 - 20:00
Campylobacter jejuni Demonstrates Conserved Proteomic and Transcriptomic Responses When Co-cultured With Human INT 407 and Caco-2 Epithelial Cells Nicholas M. Negretti1, Geremy Clair2, Prabhat K. Talukdar1, Christopher R. Gourley1, Steven Huynh3, Joshua N. Adkins2, Craig T. Parker3, Colby M. Corneau1 and Michael E. Konkel1* 1School of Molecular Biosciences, College of Veterinary Medicine,...
Tue, 04/09/2019 - 20:00
O-Antigen Gene Clusters of Plesiomonas shigelloides Serogroups and Its Application in Development of a Molecular Serotyping Scheme Daoyi Xi1,2,3,4†, Xiaochen Wang1,2,3,4†, Kexin Ning1,2,3,4, Qian Liu1,2,3,4, Fuyi Jing1,2,3,4, Xi Guo1,2,3,4 and Boyang Cao1,2,3,4* 1Key Laboratory of Molecular Microbiology and Technology of the Ministry of Education, TEDA College, Nankai University...
Tue, 04/09/2019 - 20:00
Identification of a nth-Like Gene Encoding an Endonuclease III in Campylobacter jejuni Lei Dai1, Jing Xia1,2, Orhan Sahin3 and Qijing Zhang1* 1Departments of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States 2National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of...
Tue, 04/09/2019 - 00:00
In this study, electrospun graphene oxide–doped poly(acrylonitrile-co-maleic acid) nanofibers (E-spun-GO-PANCMA-NFs) were fabricated and investigated as novel adsorbent for solid phase extraction (SPE) of tetracycline antibiotics (TCs) in chicken samples. The as-synthesized E-spun-GO/PANCMA-NFs were characterized and then used as SPE adsorbent to combine with high-performance...
Wed, 04/03/2019 - 01:13
Available online 1 April 2019 Author(s): I. Argemí-Armengol, D. Villalba, G. Ripoll, A. Teixeira, J. Álvarez-RodríguezAbstractThe role of consumers' culinary skills on purchasing cues of pork, with emphasis on niche demands (outdoor husbandry and/or certified organic), was assessed in cross-country regions of Spain (Catalonia and Aragon) and Portugal (North). A sample of 974 respondents answered...
Mon, 04/01/2019 - 00:00
Oligonucleotide aptamers as a new type of molecular recognition element, compared with conventional antibodies, have not only high affinity and specificity to target molecules but also many advantages such as a wide range of target molecule recognition, synthesis in vitro, and chemical stability. With deep concerns of human beings about food safety issues, various aptamer-...
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...
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...
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...
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 - 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 - 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, 02/01/2019 - 01:12
Publication date: Available online 30 January 2019 Food and Chemical ToxicologyAuthor(s): Merve Bacanli, Nurşen BaşaranAbstractVeterinary medicines, especially antibiotics, are among the most important components related to animal feed production. Generally, the main use of antibiotics in animals is for the treatment and prevention of diseases and growth promotion. Antibiotic usage in animals may...
Fri, 02/01/2019 - 00:00
The occurrence of antibiotic residues in milk constitutes a potential risk to the health of consumers. The present study describes the optimisation and validation of a high-performance liquid chromatographic (HPLC) method for the simultaneous determination of sulphadiazine (SDZ), sulphamethoxazole (SMX), oxytetracycline (OTC), doxycycline (DOX), tetracycline (TC),...
Fri, 01/25/2019 - 00:00
The aim of this study was to evaluate the effects of antibiotic residues in milk on growth, ruminal fermentation, and microbial community of dairy calves in their first 35 d of age. Twenty newborn Holstein bull calves were assigned to 1 of 2 treatments equally: milk replacer without antibiotics (control) and milk replacer plus 4 antibiotics: 0.024 mg/L of penicillin, 0.025 mg/L of streptomycin, 0...
Sun, 01/20/2019 - 01:11
Available online 19 January 2019 Author(s): Feng Zheng, Hua-Ming Xiao, Quan-Fei Zhu, Qiong-Wei Yu, Yu-Qi FengAbstractBenzimidazoles (BZDs) are widely used veterinary drugs in the domestic food-producing animals, resulting in the metabolism of BZDs and the harmful metabolites residues in some foods. However, some BZD metabolites are unknown and so it is important to discover new metabolites to...
Sat, 01/19/2019 - 01:11
Available online 17 January 2019 Author(s): Pedro Fraccarolli Neto, Agnaldo Fernando Baldo da Silva, Evandro Bilha Moro, Fabiana Pilarski, Osvaldo de Freitas, Mark H. Mooney, Jonas Augusto Rizzato PaschoalAbstractDue to the lack of regulated drugs for aquaculture, the present study considered specific issues relating to environmental and food safety aspects concerning the potential use of...
Mon, 01/14/2019 - 17:00
Jessica Guzman-Otazo, Lucia Gonzales-Siles, Violeta Poma, Johan Bengtsson-Palme, Kaisa Thorell, Carl-Fredrik Flach, Volga Iñiguez, Åsa Sjöling Water borne diarrheal pathogens might accumulate in river water and cause contamination of drinking and irrigation water. The La Paz River basin, including the Choqueyapu River, flows through La Paz city in Bolivia where it is receiving sewage, and...
Sun, 01/06/2019 - 01:14
Available online 4 January 2019 Author(s): Bingyao Du, Fang Wen, Yangdong Zhang, Nan Zheng, Songli Li, Fadi Li, Jiaqi WangAbstractWe assessed the presence of tetracyclines, quinolones, lincomycin, and streptomycin in ultra-high temperature (UHT) milk samples (n = 148) and pasteurized milk samples (n = 50) from China using an enzyme linked immunosorbent assay-based visualization microarray chip...
Sun, 01/06/2019 - 01:14
Available online 5 January 2019 Author(s): Marta Gaweł, Tomasz Kiljanek, Alicja Niewiadowska, Stanisław Semeniuk, Milena Goliszek, Olga Burek, Andrzej PosyniakAbstractCurrent work presents a modified QuEChERS method for the determination of 207 pesticide residues in honey by LC-MS/MS and GC-MS/MS. Acetate buffered acetonitrile extraction with Z-Sep+ and PSA dispersive-SPE clean-up were used for...
Mon, 10/22/2018 - 12:48
The histidine ATP-binding cassette (ABC) transporter of Salmonella enterica serovar Typhimurium is among the best-studied type I ABC import systems. The transporter consists of two transmembrane subunits, HisQ and HisM, and a homodimer of the nucleotide-binding subunit, HisP. Substrates are delivered by two periplasmic solute binding proteins, HisJ and LAO, with preferences for histidine and...
Sat, 08/04/2018 - 01:12
Available online 3 August 2018 Author(s): Xinmiao Luo, Xianglong Xu, Hua Chen, Ruixue Bai, Yan Zhang, Xiaorong Hou, Fan Zhang, Yong Zhang, Manoj Sharma, Huan Zeng, Yong ZhaoAbstractThis study aims to examine the food safety knowledge, attitudes, and practices (KAP) among the students from nursing, education and medical colleges. A cross-sectional study was conducted among 3454 college students in...
Wed, 08/01/2018 - 00:00
Kanamycin (Kan) and tobramycin (Tob) are widely found in many foods of animal origin, including milk. More rapid, simple, and sensitive methods are urgently needed to monitor antibiotic residues in milk. An enhanced direct competitive enzyme-linked immunosorbent assay (dcELISA) based on gold nanoparticles (AuNPs)/horse radish peroxidase-Kan (HRP-Kan) was developed. A...
Fri, 07/13/2018 - 01:10
Available online 12 July 2018 Author(s): Thierry Delatour, Marie-Claude Savoy, Adrienne Tarres, Thomas Bessaire, Pascal Mottier, Aurélien DesmarchelierAbstractAs a response to the demand for better efficiency and reliability in the monitoring of veterinary drug residues in food, liquid chromatography-mass spectrometry (LC-MS), either in tandem with quadrupoles (LC-MS/MS) or with high resolution...
Thu, 05/31/2018 - 11:05
Lantibiotics are ribosomally synthesized and posttranslationally modified antimicrobial compounds containing lanthionine and methyl-lanthionine residues. Nisin, one of the most extensively studied and used lantibiotics, has been shown to display very potent activity against Gram-positive bacteria, and stable resistance is rarely observed. By binding to lipid II and forming pores in the membrane,...
Thu, 02/01/2018 - 00:00
A rapid, simple, and efficient method was described for the simultaneous determination of three common antibiotic residues including erythromycin, tetracycline, and chloramphenicol in raw milk. A molecular imprinting technique combined with solid-phase extraction (SPE) was used to pretreat the test samples and then simultaneously detected with HPLC. The whole process, only...
Wed, 12/27/2017 - 14:51
Publication date: 2 February 2018 , Volume 266 Author(s): Nguyen Thi Nhung, Nguyen Thi Bich Van, Nguyen Van Cuong, Truong Thi Quy Duong, Tran Thi Nhat, Tran Thi Thu Hang, Nguyen Thi Hong Nhi, Bach Tuan Kiet, Vo Be Hien, Pham Thi Ngoc, James Campbell, Guy Thwaites, Juan Carrique-Mas Excessive antimicrobial usage and deficiencies in hygiene in meat production systems...
Sat, 12/23/2017 - 14:01
Publication date: 15 May 2018 , Volume 248 Author(s): Lei Tian, Stéphane Bayen This study investigated the thermal degradation of a veterinary drug, chloramphenicol, in model solutions (water), as well as in spiked and incurred mussel tissues to understand its fate in the food supply chain. Thermal degradation kinetics followed a first-order model in water (e.g. degradation rate: 0.0018–0...
Sat, 12/23/2017 - 04:15
Publication date: April 2018 , Volume 86 Author(s): João Rosa, Sara Leston, Maria Castro, Andreia Freitas, Jorge Barbosa, Miguel Ângelo Pardal, Paulo Rema, Jorge Dias, Fernando Ramos The use of antimicrobials in aquaculture is a well-known fact and merits the focus of the scientific community. In the present study, five drugs (oxytetracycline, sulfadiazine, trimethoprim,...
Tue, 12/19/2017 - 19:00
AbstractNumerous studies have indicated that yellow semen syndrome (YSS) of turkey is associated with the production of low semen quality, resulting in reduced fertility and hatchability. It is unknown at present if the etiology of YSS also could be linked to low-molecular weight metabolites. The aim of this study was to examine the metabolome of white and yellow seminal plasma of turkeys. Two...
Sat, 12/09/2017 - 03:11
Publication date: 25 April 2018 , Volume 246 Author(s): Tiele M. Rizzetti, Maiara P. de Souza, Osmar D. Prestes, Martha B. Adaime, Renato Zanella In this study a simple and fast multi-class method for the determination of veterinary drugs in bovine liver, kidney and muscle was developed. The method employed acetonitrile for extraction followed by clean-up with EMR-Lipid® sorbent and...
Mon, 11/06/2017 - 00:00
A high-performance thin-layer chromatographic (HPTLC) method was developed and validated according to the protocol on Validation of Analytical Procedures: methodology, Veterinary International Cooperation on Harmonization for simultaneous determination of enrofloxacin and ciprofloxacin in broiler chicken tissues viz. liver, kidney, muscle-breast, muscle-thigh, and skin....

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