Q & A:
Thank you Professor Kwan. I am sorry that I would like to ask 2 more questions.
1) Can Salmonella and E. coli tolerate high salt content? And in specific, can E. coli survive/grow in food with salt content 7%?
E. coli cannot grow at 7% salt, but it may survive.
2) Clostridium botulinum cannot grow in food with oxygen 5% since it is an obligate anaerobe?
It cannot grow with 5% oxygen.
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