Evaluation of phytochemical and in vitro antioxidant activity of water and acetone extracts of selected vegetables.

The aim of this study was to determine antioxidant activity of Brassica oleracea (Cabbage), Brassica rapa (Turnip) and Raphanus sativus (Radish). All of the three selected vegetables were ultrasonically extracted in water and acetone. The antioxidant activity was determined by DPPH and H2O2. Highest phenolic, flavonoid and flavonol contents were found among water extract of Raphanus sativus, Brassica oleracea and Brassica rapa respectively. Highest %age of DPPH inhibition was exhibited by water extract of Brassica rapa and highest OH◦ radical scavenging activity was shown by water extract of Raphanus sativus.