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Novel solid-phase extraction promotes simultaneous colloidal gold immunochromatographic assay of malachite green, leuco-malachite green, chloramphenicol, and semi-carbazone metabolites in aquatic products.
Food Chem
February 2025
College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong Province, China. Electronic address:
Solid phase extraction (SPE) using traditional column materials offers several advantages, but its ability to simultaneously extract and purify commonly used veterinary drugs, such as chloramphenicol, malachite green, leuco-malachite green and semi-carbazone, remains unproven.Therefore, in the present study, a rapid analytical method based on ultrasound-assisted SPE combined with colloidal gold test strips was developed and applied herein to determine the residues of these veterinary drugs in common aquatic products. Under optimized conditions, the method achieved a limit of detection in the range of 0.
View Article and Find Full Text PDFPhylogenomics of novel clones of recovered from a freshwater lake reveals unique biosynthetic gene clusters.
Microbiol Spectr
November 2024
Canadian Research Institute for Food Safety (CRIFS), University of Guelph, Guelph, Ontario, Canada.
Article Synopsis
- Aquatic ecosystems like Lake Wilcox harbor diverse bacterial strains, many of which can potentially harm humans, highlighting a significant health risk.
- Among 11 bacterial isolates studied, 67% were identified as potential human pathogens, indicating considerable genetic diversity and a reservoir for multiple pathogenic strains.
- The research uncovered widespread antibiotic resistance, particularly to β-lactams and tetracycline, emphasizing the importance of monitoring pathogens in such ecosystems to understand their genetic evolution and ecological impact.
Multiple antibiotic resistance of Salmonella Infantis in the Peruvian poultry production chain: Detection in birds, the farming environment, and chicken carcasses.
Prev Vet Med
January 2025
School of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, San Borja, Lima 15021, Peru. Electronic address:
Article Synopsis
- Poultry serves as a significant source of Salmonella enterica serotype Infantis (S. Infantis), which is linked to foodborne illness outbreaks and shows resistance to multiple antibiotics.
- A study conducted in Lima, Peru, from 2022-2023 found S. Infantis in 10.1% of bird livers, 4.7% of litter, and 8% of carcass samples, with all isolates resistant to nalidixic acid and many showing resistance to common antibiotics like tetracycline and amoxicillin.
- Most of the isolates (93.9%) exhibited multidrug resistance, posing serious risks to food safety and public health.
Exposure factors associated with antimicrobial resistance and identification of management practices for preharvest mitigation along broiler production systems: A systematic review.
J Glob Antimicrob Resist
December 2024
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA. Electronic address:
Objective: This systematic review aimed to (i) determine the risk of antimicrobial resistance (AMR) development associated with antimicrobial use (AMU) and other exposure factors in broilers, and (ii) identify best management practices to mitigate preharvest AMR development of enteric bacteria alongside broiler production.
Methods: Study selection criteria comprised the population, exposure or intervention, comparator, and outcome framework and included broiler (population), AMU or other management practices (exposure or intervention), organic or antibiotic-free production (comparator), and the presence of AMR-enteric bacteria/genes (outcome). Peer-reviewed primary research studies were searched in PubMed on 19 December 2022, and AGRICOLA, Embase, Scopus, and Web of Science on 10 February 2023.
Identification and antimicrobial susceptibility profiles of Campylobacter isolated from camel at municipal abattoirs in eastern Ethiopia.
Sci Rep
November 2024
College of Veterinary Medicine, Haramaya University, P.O. Box 138, Dire Dawa, Ethiopia.
Campylobacteriosis is an infectious zoonotic disease caused by the genus Campylobacter. The disease is transmitted from animals to humans predominantly through the consumption of contaminated food and water. However, the lack of information on the status of Campylobacter makes it difficult to quantify the role of camel meat in the dissemination of the pathogen.
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