Effects of Ultrafiltration on ACE-Inhibitory and Antioxidant Activities of Sesame Protein Hydrolysates
In order to explore the application of ultrasonic and microwave technology in sesame cake ACE inhibitory peptide preparation,sesame cakes were treated with ultrasonic,microwave and ultrasonic-assisted enzymolysis to study the effect of power,time and enzyme dosage on inhibition rate of ACE.The optimal conditions of ultrasonic treatment were power of 4 W/mL,time of 10 min and alkaline protease of 1 300 u/g,and IC50 value of ACE inhibitory peptide was 2.81 mg/mL.The optimal conditions of ultrasonic-assisted enzymolysis were power of 0.5 W/mL and alkaline protease of 1 700 u/g for 15 rain,and IC50 value of ACE inhibitory peptide was 2.96 mg/mL.The optimal conditions of microwave treatment were power of 1.33 W/mL for 5 rain,and IC50 value of ACE inhibitory peptide was 2.81 mg/mL.