The compn. of sterol mixt. from the living fossil crinoid G. richeri collected off Noumea (New Caledonia) was investigated. The free 3β-OH sterol mixt. was found to contain 14 components, Δ5 and ring satd. stanols, identified by GC-MS. Cholest-4-en-3-one, cholesta-1,4-dien-3-one, 5α-8α-epidioxy sterols, and 5α-ergosta-7,22-diene-3β,5,6β-triol were also present, their characterization being accomplished by EI-MS and 1H-NMR. The methanol ext. also contained sterol sulfates, which were identified by GC-MS after solvolysis to remove the sulfate group.
Sterol composition of the "living fossil" crinoid Gymnocrinus richeri
DE RICCARDIS, Francesco;RICCIO, Raffaele;
1991
Abstract
The compn. of sterol mixt. from the living fossil crinoid G. richeri collected off Noumea (New Caledonia) was investigated. The free 3β-OH sterol mixt. was found to contain 14 components, Δ5 and ring satd. stanols, identified by GC-MS. Cholest-4-en-3-one, cholesta-1,4-dien-3-one, 5α-8α-epidioxy sterols, and 5α-ergosta-7,22-diene-3β,5,6β-triol were also present, their characterization being accomplished by EI-MS and 1H-NMR. The methanol ext. also contained sterol sulfates, which were identified by GC-MS after solvolysis to remove the sulfate group.File in questo prodotto:
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