2) Enzymatic hydrolysis as a technological process
1. Proteins are broken down into peptides of different sizes and free
amino acids
① This degradation (hydrolysis) can be carried out by enzymes, acids
or alkali
② Acid and alkaline hydrolysis tends to be a difficult process
③ Chemical hydrolysis can destroy L-form amino acids
and produce D-form amino acids,
but can form toxic substances like lysino-alanine
2. Enzymatic hydrolysis is developed at pH (6-8) and temperature
(40-60℃)
① The overall ammo acid composition of enzymatic protein
hydrolysates is similar to that of the starting materials
② Protein hydrolysates show technological advantages : improved
solubility, heat stability and high resistance to precipitation (Fig. 1)