한국산 비자중의 스테롤 성분에 관한 연구

Studies on the Sterol Components of Torreya Nut of Korea

"Bija" (Torreya nut), a tree belonging to the Torreyaceae family, is cultivated in Jae Joo Do and Jun Ra Do, Korea. The seed of Torreya nucifera, which has been widely used as folkmedicine in the treatment of tapeworm infestation, was examined on the sterol composition determined by gas liquid chromatography and thin layer chromatography on the preparative plates. Sterols were obtained from the nonsaponifiable matters of ether extract of the seed. It was noted that beta-sitosterol was the major sterol in the nut. The results showed that contents of sterols were campesterol 3.15~3.75%, stigmasterol 5.38~5.67%, beta-sitosterol 85.61~86.28% and delta7-sterol 4.91~5.19% by gas liquid chromatography.