Antioxidative Compounds in Leaves of Castanea crenata S. et Z.
밤나무(Castanea crenat)의 지상부를 대상으로 DPPH free radical 소거법을 이용하여 2종의 항산화 활성물질을 분리하였다. 분리된 활성물질은 NMR과 mass 분석에 의하여 quercitrin, isoquercitrin으로 밝혀졌다. 두 화합물의 DPPH free radical 소거법에 의한 항산화 활성 (RC50 : 12μg)은 BHA (14 μg)와 α-tocopherol (12μg)과 비슷하였다.
Two antioxidative compounds in leaves of Castanea crenata were isolated by a bioassay using a DPPH free radical. They were identified as quercitrin, isoquercitrin on the basis of 1H and 13C-NMR and MS data. The DPPH radical scavenging activity (RC50 : 12 μg) of two compounds was similar to that of α-tocopherol (12μg) and BHA (14μg).