Low temperature storage leads to advanced upregulation of typical virulence regulators, pyk and purR of enterotoxigenic Staphylococcus aureus cultured on chicken meat.

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Tác giả: Zhenzhen Fan, Guangxia Ma, Huawei Wang, Huhu Wang, Xinglian Xu

Ngôn ngữ: eng

Ký hiệu phân loại: 627.12 Rivers and streams

Thông tin xuất bản: England : Food microbiology , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 99224

Staphylococcal enterotoxins have long been studied due to the food-borne illness caused and complex intracellular virulence regulation involved. Along with the popularized application of cold chain production of meat products, there is important significance to explore the influence of low temperature on enterotoxin genes expression correlated to regulators under meat cultivation. In this study, SEA and SEB type Staphylococcus aureus strains (designated Sa08 and Sa13 respectively) were cultivated on chicken meat at 8 and 25 °C, typical virulence regulators (agrA, saeS, srrB, rot, codY and icaA), enterotoxins (sea and seb) and metabolic factors (pyk and pyruvate, purR and xanthosine monophosphate) were monitored. As a result, cell density remained stable (10
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