中药八角乌的成分

中药八角烏(Podophyllum versipelle Hance)的根和根茎中含有4.2%的醇溶性树脂.由树脂中按氧化鋁吸附柱层离法,分离出二种結晶性成分,其一經鉴定为podophyllotoxin,約占树脂的15%;另一成分含量較少,仅占树脂的0.33%,經証明与dehydropodophyllotoxin为同一物貭.此外,通过紙层离法和紙上电泳法以及紫外吸收光譜自树脂中还检識出一种黄酮类化合物,很可能与山奈黄碱素为同一物貭.

STUDIES ON THE CONSTITUENTS OF RHIZOMES AND ROOTS OF PODOPHYLLUM VERSIPELLE HANCE

The resin (about 4.2% in yield) obtained from the dried rhizomes and roots of Podophyllum versipelle Hance had been subjected to chemical examination with the aid of liquid chromatography, and two crystalline compounds were isolated. One of them was identified as podophyllotoxin (yield about 15% of the resin), another one yielded only in small quantity (about 0.33% of the resin) was proved to be identical with dehydropodophyllotoxin. Keampferol, a flavonoid was also detected from the resin by means of the paper chromatography and the paper ionophoresis.