3 and 4 , the same concentration of DRFR-A and V C on DPPH scavenging capacity and ABTS clearance were almost similar, and in the experimental concentration range, with the increasing concentration of each component, the DPPH free radical scavenging effect and ABTS clearance showed an increasing trend, suggesting that DRFR-A had obvious antioxidant capacity.
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Antioxidation and active constituents analysis of flower residue of <i>Rosa damascena</i>.
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