The growth and decline of bacterium during the processing of meat jujube

Autor: ZHOU Xiao, YIN Hanliang, TAN Yisheng, SUN Junhua, LIU Yang
Jazyk: English<br />Chinese
Rok vydání: 2024
Předmět:
Zdroj: Shipin yu jixie, Vol 39, Iss 12, Pp 109-116 (2024)
Druh dokumentu: article
ISSN: 1003-5788
DOI: 10.13652/j.spjx.1003.5788.2023.80338
Popis: Objective: In order to determine the key control points that cause samples bagging and strengthen the prevention and control of microbial contamination during the processing of meat dates. Methods: Traditional microbial culture method combined with high-throughput DNA sequencing method was used to analyze the changes of bacterium during the processing of meat jujube and swollen bag of samples. Results: The total number of colonies basis was low in soft bones, while in the chicken skin reached to 9.10×104 CFU/g. And the total number of colonies decreased to 30 CFU/g after cooking, but increased significantly after vacuum packaging, indicated a greater risk of contamination in the vacuum packaging process. The swollen bag samples showed a significant increase in the number of bacterium, which ranged from 1.03×106~3.30×106 CFU/g. Acinetobacter, Psychrobacter and Pseudomona were the dominant spoilage bacteria in meat products. Staphylococcus was the dominant bacteria in the samples during processing (Y8~Y12), with the relative abundance decreasing to 0.02% after sterilization. The swollen bag samples (P1~P3) were dominated by Virgibacillus, with an average relative abundance of 99.37%. It was firstly founded in samples after sausage-filling (Y8) and with an increase of relative abundance after sterilization. Conclusion: The sausage-filling and packaging processes may be the critical points of contamination in the processing of meat jujube.
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