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Effects of bacterial contamination on meat decomposition


Citation

Imad Ibrahim Ali Al-Sultan and Jasni Sabri (2015) Effects of bacterial contamination on meat decomposition. Journal of Advanced Biomedical & Pathobiology Research, 5 (1). pp. 9-22. ISSN 2231-9123

Abstract

Microorganisms, mainly bacteria are playing a major role in meat decomposition. The consumption of
such microorganisms’ posses’ public health hazard and challenges to related expertise. Among the
bacteria that had been isolated from decomposed meat are Pseudomonas fluorescence and Proteus
mirabilis as well as zonootic pathogens such as Salmonella typhimurium and Staphylococcus aureus.
The growth and survivability of meat contaminants depends on the virulence of the microorganisms
and the microenvironment (hydrogen, humidity, oxidation-reduction process, temperatures) that
support their metabolism and growth. A room temperature of 20- 25o c has been shown conducive for
bacterial growth unlike a cooling temperature of 8 degrees. Studies have shown the penetration of
Staph. aureus through the surface of meat depends on the virulence factor of the bacterium and the
environment where the meat is stored. Certain bacteria like S. typhimurium and Staph. aureus have
the potential to invade more than other bacteria. Researchers in this field did not indicate any
consequential discrepancies in the penetration process between lamb and beef meat with the type of
bacterium involve in the penetration process. However, fat present in meat either lamb or beef is a
natural barrier to penetration into meat which slowdown the penetration process of bacteria. This
paper provides an overview of the contamination of meat by pathogens that penetrate and promote
decomposition and spoilage of meat and thus affecting quality.

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Additional Metadata

Item Type: Non-Indexed Article
Collection Type: Institution
Date: 2015
Journal or Publication Title: Journal of Advanced Biomedical & Pathobiology Research
ISSN: 2231-9123
Uncontrolled Keywords: Animal meat - Bacteria - Spoilage - Penetration.
Faculty/Centre/Office: Faculty of Veterinary Medicine
URI: http://discol.umk.edu.my/id/eprint/7978
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