Because the enzyme salivary amylase lacks protein.
4) lack protein
Lack protein.
Digestion of starch and other carbohydrates begins in the mouth with an enzyme called salivary amylase.
It breaks down starches to simpler sugars.
Salivary amylase
Salivary amylase.
salivary amylase
Glands aren't responsible directly for the breaking down of starch. The enzyme that is responsible for the digestion of starch is amylase. This enzyme is produced by the salivary glands in our mouth - salivary amylase. It's also made by the pancreas - pancreatic amylase.
Amylase is an enzyme in your saliva which can break down starch to sugar in a a matter of minutes or seconds. The salivary glands in your mouth release the amylase to break down the starch, and therefore, amylase is an extracellular enzyme.
Amylase
Salivary amylase, which breaks down cooked starch into maltose
salivary amylase