Potential Antioxidant Activity of Novel Antioxidant Peptides from Protein Hydrolysate of Peony Seed Dreg in Chemical and H₂O₂-Induced RAW264.7 Cells

Table 3

The antioxidant activities of the synthesized peptides.

	YFPF	ECCASLAPL	YVSLK	YFEM	GSH
DPPH∙ scavenging activity (%)	17.73 ± 0.98	87.20 ± 1.03	—	16.32 ± 1.40	49.50 ± 1.50
∙OH scavenging activity (%)	75.30 ± 1.08	26.90 ± 0.71	36.53 ± 0.40	40.47 ± 0.21	77.56 ± 1.40
ORAC (μmol TE/mg)	1.50 ± 1.40	0.73 ± 1.50	2.52 ± 1.20	2.08 ± 1.20	—

The concentration of YFPF, YVSLK, and YFEM was 500 μg/ml, except in ORAC analysis, in which the concentration was 100 μg/ml. The concentration of ECCASLAPL was 500 μg/ml in the ∙OH scavenging activity analysis, 200 μg/ml in the DPPH∙ scavenging activity analysis, and 100 μg/ml in the ORAC analysis. The concentration of trolox was 25 μg/ml. Changes compared to GSH were analyzed for statistical significance, which is indicated with asterisks;  < 0.05.