| Abstract: | The sterol fraction from the marine worm Linneus torquatus Coe (phylum Nemertini, class Anopla, family Lineidae) has been isolated, separated by HPLC and preparative TLC on AgNO3-impregnated silica gel, and sterols identified using GC, GC-MS and NMR spectroscopy. It was shown that the fraction contains at least 12 sterols belonging mainly to Δ5,22, Δ5,24(28) and Δ5 series. The major sterol components were 24-methylcholesta-5,24(28)-dien-3β-ol, cholesta-5,22E-dien-3β-ol, 24-nor-cholesta-5,22-dien-3β-ol and cholesterol. |
