南瓜籽油的甾醇
The sterols of Cucurbita moschata ("calabacita") seed oil.
作者信息
Rodriguez J B, Gros E G, Bertoni M H, Cattaneo P
机构信息
Departamento de Química Orgánica (Orientaciones Química Orgánica y Bromatología y Tecnología de Alimentos), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Argentina.
出版信息
Lipids. 1996 Nov;31(11):1205-8. doi: 10.1007/BF02524296.
From the sterol fraction of seed oil from commercial Cucurbita moschata Dutch ("calabacita") delta 5 and delta 7 sterols having saturated and unsaturated side chain were isolated by chromatographic procedures and characterized by spectroscopic (1H and 13C-nuclear magnetic resonance, mass spectrometry) methods. The main components were identified as 24S-ethyl 5 alpha-cholesta-7,22E-dien-3 beta-ol (alpha-spinasterol); 24S-ethyl 5 alpha-cholesta-7,22E,25-trien-3 beta-ol (25-dehydrochondrillasterol); 24S-ethyl 5 alpha-cholesta-7,25-dien-3 beta-ol; 24R-ethyl-cholesta-7-en-3 beta-ol (delta 7-stigmastenol) and 24-ethyl-cholesta-7, 24(28)-dien-3 beta-ol (delta 7,24(28)-stigmastadienol).
从市售南瓜（“calabacita”）种子油的甾醇馏分中，通过色谱法分离出具有饱和和不饱和侧链的δ5和δ7甾醇，并采用光谱法（1H和13C核磁共振、质谱）进行表征。主要成分鉴定为24S-乙基-5α-胆甾-7,22E-二烯-3β-醇（α-菠菜甾醇）；24S-乙基-5α-胆甾-7,22E,25-三烯-3β-醇（25-脱氢软骨甾醇）；24S-乙基-5α-胆甾-7,25-二烯-3β-醇；24R-乙基-胆甾-7-烯-3β-醇（δ7-豆甾烯醇）和24-乙基-胆甾-7,24(28)-二烯-3β-醇（δ7,24(28)-豆甾二烯醇）。
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