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Prevalence and quantification of Listeria monocytogenes in beef offal at retail level in Selangor, Malaysia

Kuan CH 1 , Wong WC 1 , Pui CF 1 , Mahyudin NA 1 , Tang JY 2 , Nishibuchi M 3 Show all authors , Radu S 1

Affiliations 

  • 1 Food Safety Research Centre, Faculty of Food Science and Technology, University Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, Malaysia
  • 2 Faculty of Food Technology, Universiti Sultan Zainal Abidin, Kuala Terengganu, Terengganu Darul Iman, Malaysia
  • 3 Center for Southeast Asian Studies, Kyoto University, Yoshida Sakyo-ku, Kyoto, Japan
Braz J Microbiol, 2013 Dec;44(4):1169-72.
PMID: 24688507 DOI: 10.1590/S1517-83822014005000002

Abstract

A total of 63 beef offal samples (beef liver = 16; beef lung = 14; beef intestine = 9; beef tripe = 15; beef spleen = 9) from three wet markets (A, B, and C) in Selangor, Malaysia were examined for the prevalence and microbial load of Listeria monocytogenes. A combination of the most probable number and polymerase chain reaction (MPN-PCR) method was employed in this study. It was found that L. monocytogenes detected in 33.33% of the beef offal samples. The prevalence of L. monocytogenes in beef offal purchased from wet markets A, B, and C were 22.73%, 37.50% and 41.18% respectively. The density of L. monocytogenes in all the samples ranged from < 3 up to > 2,400 MPN/g. The findings in this study indicate that beef offal can be a potential vehicle of foodborne listeriosis.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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