Peptides Isolated from Yak Milk Residue Exert Antioxidant Effects through Nrf2 Signal Pathway

Figure 1

Yak milk residue under enzymatic and nonenzymatic hydrolysis antioxidant capacity test. The scavenging activity of yak milk residue on ^·OH, O^2-, and DPPH free radicals was measured (a, b, and d), and the antioxidant activity of yak milk residue was detected by FRAP (c). Note: N_A-0, N_B-0, and N_C-0 are nonenzymatic hydrolyzed peptides of milk residue at an altitude of 2800 m, 3500-4000 m, and 4300 m; N_A, N_B, and N_C are hydrolyzed peptides of pepsin+trypsin digestion of milk residue at an altitude of 2800 m, 3500-4000 m, and 4300 m. Different letters represent significant differences (), the same below.

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