The invention relates to the technical field of
biological product manufacturing, and discloses an animal-derived
peptide preparation method and application, the animal-derived
peptide preparation method comprises the steps of
raw material pretreatment, enzymolysis, purification, decoloration, debitterizing, concentration,
drying and finished product detection which are carried out in sequence, the
raw material pretreatment comprises the steps of
raw material cleaning, crushing, liquid preparation and gradient low-temperature ultrasonic treatment; raw material cleaning: washing with flowing clear water for 3-5 times, cleaning the surface of hard raw materials such as ox bones by using a scrubbing
brush, soaking
soft tissue raw materials such as pigskin for 10-15 minutes, and then washing; through gradient low-temperature ultrasonic pretreatment, active ingredients are prevented from being damaged by high temperature while
cell structures of the raw materials are damaged, and the extraction rate is increased by 15-20% compared with that of a traditional method; the composite enzymolysis
system is combined with real-time monitoring, so that the enzymolysis efficiency is improved by 20-25%, and the active
peptide yield is improved by 10-15%; the double-membrane
coupling purification process synergistically removes macromolecular impurities and micromolecular salts, the purification efficiency is improved by 30-40%, the cost is reduced by 20-25%, and the product purity can reach 90% or above.