The invention provides a method for extracting
oyster peptide, which comprises the following steps: cleaning,
steaming and boiling under
high pressure, carrying out
enzymatic hydrolysis, removing the flavour, filtering, concentrating,
drying and carrying out finished product
package. The method is characterized in that when the
boiling process under the
high pressure is carried out, the employed temperature is 120 DEG C-130 DEG C, the pressure is 0.13-0.15 MPa, and the boiling time under constant temperature and
constant pressure is 2 hours; when the
enzymatic hydrolysis step is carried out, the cooling step is carried out to the temperature of 52-54 DEG C after heating and disinfecting, then NaOH is added for regulating the pH value to 7.0, 0.5% special
enzyme used for
oyster is added, the
enzymatic hydrolysis step is carried out for 3 hours, during the enzymatic
hydrolysis step, stirring is carried out for 2 minutes every 1 hour, so that the enzymatic
hydrolysis can be uniformly and fully carried out; when the flavour is removed, because an
oyster extract possesses little fishy smell, 12%
active carbon is added after the enzymatic
hydrolysis step is finished for removing the fishy smell. The method of the invention has the advantages that by using a biological enzymatic hydrolysis technology, the oyster can be changed through biological
enzyme hydrolysis to
active components capable of solving in water, the product
small peptide possesses high content, which is in favor of absorption and utilization of the oyster
active components; the
mouthfeel of the oyster
peptide after removing the flavour by the
active carbon is easier to be accepted. The invention is suitable for the method by taking the fresh shellless oyster as a
raw material for extracting the oyster
peptide.