Revisiting the 4,4-dimethylsterols profile from different kinds of vegetable oils by using GC-MS
Revisiting the 4,4-dimethylsterols profile from different kinds of vegetable oils by using GC-MS
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DOI：
10.1016/j.lwt.2020.109163
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发表时间：
2020-04-01
影响因子：
6
通讯作者：
Wang, Xingguo
中科院分区：
文献类型：
--
作者：
Zhang, Tao;Xie, Liangliang;Wang, Xingguo
4，4-二甲基甾醇是一类特殊的天然植物甾醇，通过改善内源性大麻素系统而具有许多健康益处。植物油中已确定的4，4-二甲基甾醇谱仅限于几种常见化合物，特别是环阿屯烯醇和24-亚甲基环阿屯烯醇。由于共洗脱或不清楚的碎片化问题，部分忽略了其他4，4-二甲基甾醇物质的分析。在这项研究中，4，4-二甲基甾醇在31种不同的植物油中进行了鉴定和比较。获得的结果首次揭示了一个可区分的存在下，4，4-二甲基甾醇的油从ericales订单，和互补的分布在乳木果油（三萜4，4-二甲基甾醇）和米糠油（cycloartane 4，4-二甲基甾醇）。建立的4，4-二甲基甾醇类化合物谱不仅可以促进功能性研究，而且对油脂掺假的检测也具有重要的意义。
4,4-Dimethylsterols, are a special class of naturally-occurring phytosterols that possess numerous health benefits via improving the endogenous cannabinoid system. The established 4,4-dimethylsterols profile in vegetable oils is limited to few common compounds, notably cycloartenol and 24-methylene cycloartenol. The analysis of other 4,4-dimethylsterols species was partially neglected because of co-elution or unclear fragmentation issues. In this study, 4,4-dimethylsterols profile in 31 different vegetable oils was identified and compared. The obtained results for the first time revealed a distinguishable presence of 4,4-dimethylsterols in the oils from the ericales order, and a complementary distribution in shea nut butter (triterpene 4,4-dimethylsterols) and rice bran oil (cycloartane 4,4-dimethylsterols). The established 4,4-dimethylsterols profile would not only promote functional researches but it would also have an important role in the detection of oils adulteration.