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Effect of preliminary stresses on the induction of viable but non-culturable Escherichia coli O157:H7 NCTC 12900 and Staphylococcus aureus ATCC 6538

Food Res Int. 2023-03; 
Dong Yang, Liang Zhao, Lei Rao, Xiaojun Liao
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Proteins, Expression, Isolation and Analysis … This phenomenon inspired us to find the effect of different stress preadaptation on VBNC … tool (NCBI), biosynthesized by GenScript Biotech Corporation and are exhibited in Table 2. … Get A Quote

摘要

As a novel non-thermal pasteurization technology, high pressure carbon dioxide (HPCD) has been used in food processing. However, it could induce microorganisms into a viable but nonculturable (VBNC) state, posing a potential risk to food safety and public health. In this study, we attempted to investigate the effect of various preliminary stresses including cold, heat, osmosis, acidity and oxidation on HPCD-induced VBNC formation. The results indicated that there was no effect of preliminary stresses on VBNC Staphylococcus aureus induction. However, heat, acidity and long-term (24 h) cultivation preadaptation could significantly increase the VBNC E. coli production induced by HPCD. Transcriptome analysis revea... More

关键词

E. coli O157:H7, High pressure carbon dioxide, Preadaptation, Viable but non-culturable
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