ヒトデ類のステロール成分-2-cholestanol,Δ7.22-cholestadienolおよび新C26ステロールの存在について

概要

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Previously, the authors reported the sterol constituents of six species of starfishes (Asterias amurensis, Asterina pectinifera, Luidia quinaria, Asteropecten scoparius, Asteropecten polyacanthus, and Coscinasterias acutispina). ?? 7-Cholestenol was the major sterol (about fifty percent of total sterols) in these animals. ?? 7.22-Ergostadienol, ?? 7.22-stigmastadienol, and ?? 7-stigmastenol were also identified by comparing the retention times of GLC with those of authentic samples, and the occurrence of C28 sterol, stellastenol, was recognized in all starfishes investigated. In the present study, two unidentified sterols reported in the previous paper were examined by GC-MS spectrometry. These were proved to be cholestanol and ?? 7.22-cholestadienol, respectively. Besides, the presence of a new sterol, which was suggested to be 24-nor- ?? 7.22-cholestadienol by mass spectrum analysis, was recognized in all six species of starfishes.
日本水産學會の論文