Abstract:In this paper, the antioxidant capacity of loach protein polypeptide was studied by antioxidant experiments. Experiments showed that loach protein polypeptide in vitro has a certain ability to antioxidant. In the antioxidant experiment in vivo, SOD activity in high-dose group was increased by 36.6%, 28.1% and 22.3%, GSH-Px activity was increased by 43.2%, 132.2% and 92.5%, respectively, while MDA level was decreased by 16.2%, 18.3% and 26.2%, respectively. The experiment showed that loach protein polypeptide could improve the activities of SOD and GSH-Px in serum, liver and heart tissue of mice, and reduce the level of MDA in tissue. Liver tissue section showed that loach protein polypeptide had a certain effect on mice liver from oxidative stress damage. The experimental results showed that loach protein polypeptide could inhibit the damage caused by oxidation to a certain extent, and improve the antioxidant capacity of the body. The results provided reference for loach protein and its deep processing products.
