What is the enzyme required to digest proteins in stomach and at which pH ?

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Vamsi Krishna's picture

Answer: 

the digestion process until the secretion of stomach acid causes the pH to drop below 3.0, which is the activity range of plant enzymes. Before food arrives, the stomach normally has a pH between 5.0 and 6.0. In young and healthy adults it takes about 45 minutes before enough acid is generated to drop the pH to 3.0.

There is a common misconception that enzymes are destroyed by stomach acid. Nothing could be further from the truth. Stomach acid does not digest protein. Rather, it activates an enzyme called pepsinogen which then becomes pepsin that is secreted by the stomach wall. This enzyme is only active within the pH range of 3.0 to 5.0 and requires the acid to maintain that pH.

ref by:http://www.loomisinstitute.com/articles/digestion-in-the-stomach.aspx?li...

B.T.N VAMSI KRISHNA

VISWANATHA INSTITUTE OF PHARMACEUTICAL SCIENCES

 

 

Arun Kumar's picture

Answer: 

 The enzyme is pepsinogen which then becomes pepsin that is secreted by the stomach wall. This enzyme is only active within the pH range of 3.0 to 5.0 .ref:http://www.loomisinstitute.com/articles/digestion-in-the-stomach.aspx?li...

Regards

K. Arun Kumar

Viswanadha Inst. of Pharmaceutical Sciences

www.vnips.edu.in

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