OCCURRENCE OF LISTERIA-MONOCYTOGENES IN SOFT AND SEMI-SOFT CHEESES IN RETAIL OUTLETS IN SWEDEN

被引：74

作者：

LONCAREVIC, S

DANIELSSONTHAM, ML

THAM, W

机构：

[1] Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, 750 07 Uppsala, Box 7009

来源：

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY | 1995年 / 26卷 / 02期

关键词：

L-MONOCYTOGENES; SOFT AND SEMI-SOFT CHEESE;

D O I：

10.1016/0168-1605(95)00105-S

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Samples of 333 retail cheeses produced in or imported into Sweden were examined for the presence of Listeria monocytogenes. Listeria monocytogenes was isolated from 6% of the cheese samples. Cheeses made from raw milk were more frequently contaminated with L. monocytogenes (42%) than cheeses made from heat-treated milk (2%). The incidence of the organism in whole cheeses and pre-cut wedges was similar (6%). L. monocytogenes was only found in imported cheeses (18 from France, and one from Germany and Italy, respectively). The numbers of L. monocytogenes varied from < 1 x 10(2) to 1 X 10(5) cfu/g. All L. monocytogenes strains belonged to serogroup 1/2, except isolates from two samples that belonged to serogroup 4.

引用

页码：245 / 250

页数：6