Studies on Biological Activity of Wood Extractives(VI) - Flavonoids in heartwood of Prunus sargentii -

수목추출물의 생리활성에 관한 연구(VI) - 산벚나무 심재의 Flavonoids -

The structures of six flavonoids isolated from heartwood of Prunus sargentii(Rosaceae) were analyzed by Mass and NMR spectrometry. These flavonoids were grouped into dihydroflavonol, flavanone, and flavanone glycoside, and identified as follows : 3,3',4',5,7-pentahydroxyflavanone(taxifolin) as a dihydroflavonol, 5-hydroxy-7-methoxyflavanone(pinostrobin), 4',5,7-trihydroxyflavanone(naringenin), 3',4',5,7-tetrahydroxyflavanone(eriodictyol), 5,7-dihydroxyflavanone(pinoccmbrin) as a flavanone and 7-hydroxyflavanone 5-O-${\beta}$-D-glucopyranoside(verecundin) as a flavanone glycoside.

항균 및 항산화활성이 우수한 산벚나무(Prunus Sargentii)심재 에탄올 추출물로부터 6개의 후라보노이드 화합물을 단리하였다. 이들을 기기분석한 결과, dihydroflavonol인 3,3',4',5,7-pentahydroxyflavanone(taxifolin)을 비롯하여flavanone인 5-hydroxy-7-methoxyflavanone(pinostrobin), 4',5,7-trihydroxyflavanone (naringenin), 3',4',5,7-tetrahydroxyflavanone(eriodictyol), 5,7-dihydroxyflavanone(pinocembrin), 그리고 flavanone의 배당체인 verecundin(7-hydroxyflavanone 5-O-${\beta}$-D-glucopyranoside)로 각각 동정되었다.