Characterization of Listeria strains isolated from soft cheeseShow others and affiliations
1993 (English)In: International Journal of Food Microbiology, ISSN 0168-1605, E-ISSN 1879-3460, Vol. 18, no 2, p. 161-166Article in journal (Refereed) Published
Abstract [en]
Three soft cheeses were exposed to quantitative analysis for listeria and found to contain a large number of listeria. Thirty-five of the listeria strains isolated from the three cheeses were characterized by use of biochemical tests, serotyping, phagetyping and DNA restriction enzyme analysis. Seven isolates were identified as Listeria innocuaand 28 as Listeria monocytogenes. Two to four different clones of L. monocytogenescould be identified from each cheese. In contrast, only one clone could be detected among the L. innocua isolates. From an epidemiological point of view the findings of different clones of L. monocytogenes in the same cheese emphasize the need for typing several listeria isolates from one and the same food sample. It is concluded that the best overview of the population of the listeria strains is obtained after direct plating of the sample followed by enumeration, isolation and extensive typing.
Place, publisher, year, edition, pages
Elsevier, 1993. Vol. 18, no 2, p. 161-166
National Category
Medical and Health Sciences
Research subject
Medicine
Identifiers
URN: urn:nbn:se:oru:diva-58014DOI: 10.1016/0168-1605(93)90220-BISI: A1993KV54500008Scopus ID: 2-s2.0-0027409597OAI: oai:DiVA.org:oru-58014DiVA, id: diva2:1109005
2017-06-132017-06-132019-05-21Bibliographically approved