Some previous studies have confirmed that the high level of antioxidant activity in onions was attributable to their flavonoid constituents, namely quercetin, kaempferol, myricetin, and cate-chin (Siddiq et al., 2013).
Some previous studies have confirmed that the high level of antioxidant activity in onions was attributable to their flavonoid constituents, namely quercetin, kaempferol, myricetin, and cate-chin (Siddiq et al., 2013).