Table 1. Antioxidant activities of Yellowball peel compounds isolated by HPLC

DPPH (IC50, μg/mL) Intensity (%)
Unknown2 (EA1) 69.17±0.55 <0.01
Sinapoyl glucoside (EA2) 293.50±4.37 0.05
Hesperidin (EA3) >2,000 7.62
He1 compounds 147.16±3.38 12.31
Trolox (positive control) 44.86±1.31