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Transition of microbial contamination on the surface of carcass during the cattle slaughter process. | LitMetric

Transition of microbial contamination on the surface of carcass during the cattle slaughter process.

Food Microbiol

Hida Meat Agricultural Cooperative Association, 327 Yokamachi, Gifu, Takayama, 100-8251, Japan.

Published: June 2023

AI Article Synopsis

Article Abstract

In this study, we aimed to investigate how microbial contamination progresses on the carcass surface during the slaughter process. Cattle carcasses were tracked during a series of slaughter processes (five steps), and carcass surfaces (four parts) and equipment (nine types) were swabbed to investigate the bacterial contamination. Results showed that the outer surface (near the rear region of the flank [Top round] and [Top sirloin butt]) had significantly higher total viable counts (TVCs) than inner surface (p < 0.01) and that TVCs gradually decreased along the process. Enterobacteriaceae (EB) counts were high on the splitting saw and in top round region, and EB was detected on the inner surface of the carcasses. Furthermore, in some carcasses, Yersinia spp., Serratia spp., and Clostridium spp. present on top round and top sirloin butt immediately after skinning and remained on the carcass surface after the final process. These bacterial groups are detrimental to beef quality as they can grow in the package during cold distribution. Our results show that the skinning process is the most prone to microbial contamination, including psychrotolerant microorganisms. Moreover, this study provides information for understanding the dynamics of microbial contamination in the cattle slaughter process.

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Source
http://dx.doi.org/10.1016/j.fm.2023.104245DOI Listing

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