Comparison of Procedures for Isolating Listeria monocytogenes in Soft, Surface-Ripened Cheese
- 1 January 1987
- journal article
- research article
- Published by Elsevier in Journal of Food Protection
- Vol. 50 (1) , 4-6
- https://doi.org/10.4315/0362-028x-50.1.4
Abstract
Ninety samples of soft, surface-ripened cheese from a lot previously identified to contain Listeria were assayed for Listeria monocytogenes by three procedures. These included: (a) cold enrichment, (b) the Food and Drug Administration enrichment procedure, and (c) the selective enrichment procedure of Doyle and Schoeni (Appl. Environ. Microbiol. 15:1127, 1986). L. monocytogenes was isolated from 41 of the 90 cheese samples. The organism was isolated from only 9 of the 41 L. monocytogenes-positive samples by more than one procedure. Most isolations (21) were made by the cold enrichment procedure, with 16 and 13 isolations made by the FDA and Doyle-Schoeni procedures, respectively. In most instances, the organism was isolated from a cheese sample by only one procedure.This publication has 4 references indexed in Scilit:
- Selective-enrichment procedure for isolation of Listeria monocytogenes from fecal and biologic specimensApplied and Environmental Microbiology, 1986
- Isolation of Listeria monocytogenes from raw milkApplied and Environmental Microbiology, 1986
- Pasteurized Milk as a Vehicle of Infection in an Outbreak of ListeriosisNew England Journal of Medicine, 1985
- A New Technique for Isolating Listerellae from the Bovine BrainJournal of Bacteriology, 1948