원문정보
초록
영어
A rhizome of Gastrodia elata Blume(Orchidaceae) is a traditional herbal medicine in Oriental countries, such as Korea, China and Japan. In order to confirm the Antioxidant activities of G.elata, we carried out various in vitro assays to examine its biological activities. The processing of medicinal herbs can result in compositional changes, and these changes can generally result in different pharmacological activities. G.elata rhizome samples with different steaming processes, distribution product, steamed one time (1S) and five times (5S), were extracted with 100% MeOH and freeze-dried for its bioassays. Total flavonoid and pholyphenol contents showed the highest at the 5S sample. Likewise, DPPH free radical scavenging activity was the highest at 5S which is slightly lower than control sample(ascorbic acid). Reducing power also showed the highest at 5S, and especially the value of 5S sample was two times higher than that of 1S sample, the lowest value. In summary, this study suggested the value of G.elata as a potential natural antioxidant.