A 44-year-old member asked:
the human stomach is an acidic environment. is the optimum ph of pepsin high or low?
1 doctor answer • 2 doctors weighed in
Gastroenterology 35 years experience
Pepsin: Pepsin operates best in a very acid environment. It's optimal pH is 1.5, which is approximately the same pH as the stomach environment where the acid has been secreted. Hope that helps.
Last updated Jun 8, 2017
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