Linked from
The 12 pages that link to Proteolysis, each with the reason it gives.
SourdoughRelated: Acidic fermentation can alter dough proteins and affect extensibility.
GochujangRelated: Protein breakdown helps produce savory compounds in fermented soybean paste.
Angiotensin IRelated: Renin and ACE produce and process angiotensin I through peptide-bond cleavage.
Blue cheeseRelated: Protein breakdown softens the paste and generates savory flavor during ripening.