期刊
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
卷 79, 期 11, 页码 1069-1074出版社
WILEY
DOI: 10.1007/s11746-002-0605-4
关键词
borage oil; GC-MS; sterols; TLC
Borage oil sterols were isolated by TLC and characterized using GC and GC-MS. Several diunsaturated Delta(5)- sterols, some of them not previously recorded in vegetable oils, were found. Of these, 24-methylcholesta-5,23-dienol and 24ethylcholesta-5,23-dienol could be useful markers for borage oil. Two other diunsaturated Delta(5)-sterols that are rarely found in vegetable oils, 24-methylcholesta-5,24(25)-dienol and 24-ethylcholesta-5,24(25)-dienol, were identified. The diunsaturated C-24(28)-sterol, isofucosterol, was also found, as well as the monounsaturated Delta(5)-sterols campesterol and sitosterol. These are normally present in vegetable oils, which makes them unsuitable as markers for borage oil.
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