Evaluation of Direct Enrichment at Elevated Temperature for Recovery of Salmonellae from Oysters

Publisher Website
Google Scholar
Abstract
A comparison of the recovery of salmonellae from naturally contaminated oysters was made by using either Lactose broth preenrichment at 35°C followed by selective enrichment in Tetrathionate and Selenite Cystine broths at 35, 41 and 43°C, or direct enrichment in Tetrathionate and Selenite Cystine broths with incubation at 35, 41 and 43°C. Direct enrichment in Selenite Cystine broth at both elevated temperatures produced the greatest number of positive samples. Similar results were obtained with artificially contaminated oyster samples (1 Salmonella/5 g of meat). Statistical analysis of the data showed that significantly higher recovery of salmonellae was obtained by using direct enrichment of samples in Selenite Cystine broth at the elevated temperature.

This publication has 0 references indexed in Scilit: