Listeria monocytogenes:: Occurrence in beef and identification of the main contamination points in processing plants

被引：51

作者：

Barros, Marcia A. F.

Nero, Luis A.

Silva, Livia C.

d'Ovidio, Loredana

Monteiro, Fabricio A.

Tamanini, Ronaldo

Fagnani, Rafael

Hofer, Ernesto

Beloti, Vanerli

机构：

[1] Univ Brasilia, Fac Agron & Med Vet, BR-70910970 Brasilia, DF, Brazil

[2] Univ Estadual Londrina, Dept Vet Prevent Med, BR-86051990 Londrina, Parana, Brazil

[3] Univ Fed Vicosa, Dept Vet, BR-36570000 Vicosa, MG, Brazil

[4] Fiocruz MS, Inst Oswaldo Cruz, Dept Bacteriol, Rio De Janeiro, Brazil

来源：

MEAT SCIENCE | 2007年 / 76卷 / 04期

关键词：

Listeria spp; Listeria monocytogenes; beef; beef processing plant; EPIDEMIC LISTERIOSIS; FOOD; MEAT; ENRICHMENT; PRODUCTS; SEROVARS;

D O I：

10.1016/j.meatsci.2007.01.016

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

This study aimed to establish the occurrence of Listeria spp., especially L. monocytogenes and its main serotypes, in beef and processing plants. A total of 443 samples were obtained from equipment, installations and products from 11 meat processing establishments from Parana state, Brazil. All samples were analyzed using USDA methodology for Listeria spp. detection, followed by species identification. The occurrence of Listeria spp. in the samples was 38.1% of which 51.4% were from equipment, 35.4% from installations and 30.2% from products. The identified species were: L. monocytogenes (12.6%), L. innocua (78.4%), L. seeligeri (1.2%), L. welshimeri (7.2%) and L. grayi (0.6%). The identified serotypes of L. monocytogenes were 1/2a and 4b. The results demonstrate the significance of equipment and installations as sources of contamination by Listeria spp. and L. monocytogenes in the processing of beef and meat products. (C) 2007 Elsevier Ltd. All rights reserved.

引用

收藏

页码：591 / 596

页数：6

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