A collaborative study was conducted to compare a new enrichment procedure for the TECRA Salmonella Visual Immunoassay (TSVIA) with the reference method given in the U.S. Food and Drug Administration's Bacteriological Analytical Manual (7th Ed.). Three food types (milk powder, pepper, and soy flour) were analyzed in Australia and 3 food types (milk chocolate, dried egg, and raw turkey) were analyzed in the United States. Thirty-eight collaborators participated in the study. The TECRA method was evaluated using both Rappaport-Vassiliadis R10 (RV(R10)) and tetrathionate (TT) broths for selective enrichment. M broth cultures arising from each of the 2 selective enrichment broths were tested in the TSVIA using 2 individual wells, one for each selective broth, and a single well to test the pooled selective enrichment broths. The results for the pooled enrichment broths were reported elsewhere. This study presents the results for the use of single enrichment broths, i.e., RV(R10) only or TT only, with the TSVIA. No significant differences (p > 0.05) were observed for the pairwise comparison of the proportion of positive samples for either RV(R10) or TT used as a single enrichment broth for the TSVIA with that for the reference method.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Goat's Milk Powder Enriched with Red ( L.) and Black ( Murray) Goji Berry Extracts: Chemical Characterization, Antioxidant Properties, and Prebiotic Activity.
Foods
December 2024
Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia.
The current trend in food innovations includes developing products containing plant ingredients or extracts rich in bioactive compounds. This study aimed to prepare and characterize skimmed thermally treated goat's milk powders enriched with lyophilized fruit extracts of Murray (GMLR) and L. (GMLB).
View Article and Find Full Text PDFEmerging biofilm formation and disinfectant susceptibility of ESBL-producing Klebsiella pneumoniae.
Sci Rep
January 2025
Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
Klebsiella pneumoniae is an opportunistic pathogen responsible for various infections in humans and animals. It is known for its resistance to multiple antibiotics, particularly through the production of Extended-Spectrum Beta-Lactamases (ESBLs), and its ability to form biofilms that further complicate treatment. This study aimed to isolate and identify K.
View Article and Find Full Text PDFDetection methods for carbapenem-resistant Pseudomonas aeruginosa in surface water and wastewater.
Sci Total Environ
January 2025
National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Biotechnology, Technical University Delft, Delft, the Netherlands. Electronic address:
Water systems can act as an important reservoir for Pseudomonas aeruginosa, which can pose public health risks during human contact. Carbapenem resistance is one of the most concerning resistances in P. aeruginosa making it a high-priority pathogen according to the World Health Organization (WHO), due to its ability to cause difficult-to-treat infections.
View Article and Find Full Text PDFIsolation and Detection of the Emerging Pathogen in Clinical Stool Samples and the Potential Transmission by Meat Samples in Retail.
Microorganisms
November 2024
Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
The significance of as a foodborne pathogen is increasingly acknowledged, but the assessment of its occurrence and transmission remains challenging due to the lack of validation of selective isolation, detection, and identification methods. The aim of the present study was to examine its presence on various meat samples at the retail level in order to assess a potential foodborne transmission and its occurrence in clinical stool samples. First, the evaluation and selection of a selective enrichment broth and isolation medium, combined with an optimized identification by MALDI-TOF MS, as well as a suitable DNA extraction method and a PCR-based detection strategy were developed.
View Article and Find Full Text PDFNanopore Sequencing Allows Recovery of High-Quality Completely Closed Genomes of All Species from Powdered Infant Formula Overnight Enrichments.
Microorganisms
November 2024
Microbial Methods Development Branch, Division of Food and Environmental Safety, Office of Applied Microbiology and Technology (OAMT), Office of Laboratory Operations and Applied Science (OLOAS), Human Foods Program, Food & Drug Administration, College Park, MD 20740, USA.
Precision metagenomic approaches using Oxford Nanopore Technology (ONT) sequencing has been shown to allow recovery of complete genomes of foodborne bacteria from overnight enrichments of agricultural waters. This study tests the applicability of a similar approach for genome recovery from powdered infant formula (PIF) overnight enrichments, where typically dominates the overall microbiome (>90%). This study aimed to test whether using ONT sequencing of overnight PIF enrichments could recover a completely closed genome for further genomic characterization.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!