The invention discloses a method for preparing almond
peptide from almond dregs, comprising the following steps of:
drying, smashing and sieving the almond dregs; adding with deionized water; adjusting pH value; stirring, extracting, centrifuging and taking supernate under a certain temperature; adjusting pH value to be 1.4 with HCL; centrifuging; taking
precipitation layer and washing with water;collecting the
precipitation into an enzymolysis
jar; adding with the deionized water according to
solid-to-
liquid ratio being 1:(10-15); stirring, mixing and heating to be 40-55 DEG C; adjusting pHvalue to be 5-8 with the HCL; enzymatically reacting by adding with prolease according to the
mass ratio of the prolease to crude almond
peptide being (1-2):100; adjusting pH value to be 5.5; heatingup to be 90 DEGE C for 20 min;
blanching with
enzyme and cooling to
room temperature; centrifuging enzymatic hydrolyzate under 5000 r / min for 20 min and taking supernate; desalinating the almond
protein enzymatic hydrolyzate with cation exchange resin and anion exchange resin; and ultra filtrating and separating to obtain almond
peptide. the method has wide application value.