Question

A granola bar wrapper claims that it has protein. You conduct hydrolysis of the granola bar with pepsin enzyme to digest protein and amylase enzyme to digest starch. After hydrolysis, you detect sugars but no amino acids. Did the granola bar contain proteins as claimed?

Answer 1

No, as amylase does not digest protein. no else stuff could digest protein either than pepsin. Hence , if it contains proteins, the bar should have amino acids. but there was no amino acid hence the bar had no protein.