Free polyphenols and multi-omics traits underlying antioxidant variation across Paeonia lactiflora leaf cultivars.
Leaves of Paeonia lactiflora are underutilized by-products with potential as natural antioxidant sources. In this study, 18 cultivars were evaluated for phytochemical composition and in vitro antioxidant capacity. Total phenolic content correlated strongly with DPPH and ABTS activities, and the comprehensive antioxidan...