Scavenging Effects of Lotus Germ Extraction on Superoxide Anion and Hydroxyl Radical

Int hisp aper, thes cavenginge ffectso fl otus germe xtractiono ns uperoxidea niona ndh ydroxylf reer adicalw ere studied with orthogonal test. The results showed that whether lotus germ water-extraction or ethanol-extraction having scavenging activities on superoxide anion and hydroxyl radical. Lotus germ water-extraction having higher scavenging effects on superoxide anion than on hydroxyl radical, but lotus germ ethanol-extraction having higher scavenging effects on hydroxyl radical than on superoxide anion. The final affirmed best conditions for water-extraction were extraction temperature 90℃,t he ratioo f sample/ solvent (water) 1:12, extraction time 0.5h. The final affirmed best conditions for ethanol-extraction were extraction time 6h, extraction temperature 60℃, and the ratio of sample/solvent (water) 1:14.