Monday, November 16, 2009

Why does acidity effect bacteria growth -?

there seems to be no websites on it :S if any one knows any?? or any books? cheers

Why does acidity effect bacteria growth -?
Bacteria digest externally through the use of enzymes.


The `PH' changes the effectiveness of the enzymes.


Eg. :Botullinus grows well in basic environments, but can't


grow in acid ones.
Reply:Some organisms only like low pH and some like high pH. It varies from organism to organism.





go here on the web page i cite





The Effect of pH on Growth
Reply:Acidity does not affect the growth of all organisms, otherwise the yogurt would not have been produced. However, in most cases, acid denatures vital proteins necessary for the growth of the organisms. Consequently, the organisms die in an acidic environment.


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