UPLC-ESI-MS/MS Analysis and Evaluation of Antioxidant Activity of Total Flavonoid Extract from <i>Paeonia lactiflora</i> Seed Peel and Optimization by Response Surface Methodology (RSM)

<div>Antioxidant capacity of <i>Paeonia lactiflora</i> seed peel extract obtained by optimized ultrasound-assisted extraction compared with trolox: (a) DPPH<sup>⋅</sup> radical scavenging activity; (b) ABTS<sup>+⋅</sup> radical scavenging activity; (c) Cu<sup>2+</sup> reduction ability.</div>

BioMed Research International

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Figure 5

Figure 5: UPLC-ESI-MS/MS Analysis and Evaluation of Antioxidant Activity of Total Flavonoid Extract from <i>Paeonia lactiflora</i> Seed Peel and Optimization by Response Surface Methodology (RSM) 

Figure 5 | UPLC-ESI-MS/MS Analysis and Evaluation of Antioxidant Activity of Total Flavonoid Extract from Paeonia lactiflora Seed Peel and Optimization by Response Surface Methodology (RSM) 