Hydrastis(ヒドラスチス科)の葉に含まれるフラボノイド : シラネアオイ属との植物化学的比較(英文)

概要

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Three flavonoids were isolated from the leaves of Hydrastis canadensis, together with another phenolic compound, chlorogenic acid. They were identified as quercetin 3-O-gentiobioside, quercetin 3-O-galactoside and quercetin 3-O-glucoside by LC-MS, acid hydrolysis, and direct TLC and HPLC comparisons with authentic specimens. The flavonoids in the leaves of Glaucidium palmatum have previously been identified as three rare 3-O-allosides of quercetin, kaempferol and rhamnocitrin by Iwashina and Ootani (1990). It was proved that the flavonoids of both H. canadensis and G. palmatum were flavonol 3-O-hexosides, suggesting the phytochemical affinity between both genera. However, the glycosidic sugars of H. canadensis were the common glucose and galactose, and that of G. palmatum was the rare allose, showing intergeneric differences or geographic isolation between the two genera.
国立科学博物館の論文
2006-03-22