Function
Hydrolyzes proteins into peptides and amino acids.

Sources
Bacillus subtilis
Aspergillus oryzae
Streptomyces griseus
Production Method
Fermentation: Typically produced in alkaline or neutral media using submerged fermentation.
Purification: Ultrafiltration, precipitation, chromatography.
Applications
Detergents
Leather industry (dehairing hides)
Pharmaceuticals (digestive enzymes)