Sterols and Other Unsaponifiable Substances in the Lipids of Shell Fishes, Crustacea and Echinoderms. XVII. Mono-unsaturated Sterol Components of the Starfish Asterina Pectinifera
作者:Yoshiyuki Toyama、Toru Takagi
DOI:10.1246/bcsj.29.317
日期:1956.3
In a continuation of the study on sterol components of Asterina pectinifera, the present study is concerned with mono-unsaturated sterol components. The steryl acetate fraction recovered from the mother liquors of the recrystallizations, which were carried out for the separation of hitodesteryl (α-spinasteryl) acetate in a previous study, was subjected to fractional crystallizations by which two fractions, Δ7-spinastenyl acetate fraction and Δ7-cholestenyl acetate fraction, were eventually separated. Accordingly it has been found that the sterol mixture of Asterina pectinifera contains Δ7-spinastenol and Δ7-cholestenol besides hitodesterol.
在Asterina pectinifera固醇成分研究的延续中,本研究关注的是单不饱和固醇成分。在之前的研究中,为了分离hitodesteryl(α-spinasteryl)乙酸酯,进行了重结晶,从重结晶的母液中回收的乙酸固醇部分进行了分馏结晶,最终分离出两种部分,即Δ7-spinastenyl乙酸酯部分和Δ7-cholestenyl乙酸酯部分。因此,已经发现Asterina pectinifera的固醇混合物除了hitodesterol外,还含有Δ7-spinastenol和Δ7-cholestenol。