海绵Tethya amamensis的甾醇：（24E）-24-亚乙基胆甾-5,7-二烯醇、（24E）-24-亚丙基胆甾-5,7-二烯醇和（24Z）-24-亚丙基胆甾-5,7-二烯醇的存在。
Sterols of the spongeTethya amamensis: Occurrence of (24E)-24-ethylidenecholesta-5,7-dienol, (24E)-24-propylidenecholesta-5,7-dienol, and (24Z)-24-propylidenecholesta-5,7-dienol.
作者信息
Teshima S, Kanazawa A, Yamada I, Tanaka Y
机构信息
Faculty of Fisheries, University of Kagoshima, 4-50-20 Shimoarata, 890, Kagoshima, Japan.
出版信息
Lipids. 1983 Mar;18(3):193-7. doi: 10.1007/BF02534547.
The spongeTethya amamensis, collected from Kagoshima Bay, Japan, contained at least 24 sterols, including Δ(5)-sterols (82.2% of total sterols) and Δ(5, 7)-sterols (17.8%). The predominant sterols were cholesterol (29.0%), cholesta-5,22-dienol (13.8%), 24-methylcholesta-5,22-dienol (10.9%), 24-methylenecholesterol (8.3%), 24-methylcholesta-5,7,22-trienol (6.8%), 24-ethylcholest-5-enol (6.1%), and isofucosterol *4.1%). Combined gas liquid chromatography-mass spectrometry suggested the presence of 3 uncommon sterols, (24E)-24-ethylidenecholesta-5,7-dienol, (24E)-24-propylidenecholesta-5,7-dienol, and (24Z)-24-propylidenecholesta-5,7-dienol as minor components. The sterols ofT. amamensis also contained small amounts of 24-norcholesta-5,7,22-trienol and (24Z)-24-ethylidenecholesta-5,7-dienol.
从日本鹿儿岛湾采集的海绵Tethya amamensis含有至少24种甾醇，包括Δ(5)-甾醇（占总甾醇的82.2%）和Δ(5,7)-甾醇（17.8%）。主要的甾醇有胆固醇（29.0%）、胆甾-5,22-二烯醇（13.8%）、24-甲基胆甾-5,22-二烯醇（10.9%）、24-亚甲基胆固醇（8.3%）、24-甲基胆甾-5,7,22-三烯醇（6.8%）、24-乙基胆甾-5-烯醇（6.1%）和异岩藻甾醇（4.1%）。气相色谱-质谱联用分析表明存在3种不常见的甾醇，即(24E)-24-亚乙基胆甾-5,7-二烯醇、(24E)-24-亚丙基胆甾-5,7-二烯醇和(24Z)-24-亚丙基胆甾-5,7-二烯醇作为次要成分。T. amamensis的甾醇还含有少量的24-降胆甾-5,7,22-三烯醇和(24Z)-24-亚乙基胆甾-5,7-二烯醇。
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