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Salmonella , E-coli and others - for people who are biologists or professionals Rate Topic: -----

#1 5 January 2012 - 02:04 PM nirge888 


Lepton
Hello,
1.Do you know if Salmonella, E-coli and others can survive in freezing temprature of -18C ?

2.Can they survive in dogs stomach acid in PH level of 1?

Thanks!
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#2 5 January 2012 - 05:23 PM CharonY 


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Biology Expert
1) Depends on the method of freezing and the number of bacteria, but mostly yes. Repeated freeze thawing can kill some off, but many will survive.

2) I think the pH in the stomach is on average above 1 but again, it depends on how many are sent through. There are pH resistant strains, but even sensitive ones might survive the passage, only with a much lower yield.
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