红树林植物露兜中挥发油和脂肪酸的测定

Determination of Volatile Oil and Fatty Acids in Screw-pine

摘要:

本文采用气相色谱-质谱联用分析法,测定红树林植物露兜中挥发油、脂肪酸组分及含量。结果表明：从露兜挥发油提取液中分离出76个峰，共鉴定出60种化合物，其中2,6-二叔丁基-4-甲基苯酚含量最高，达19.25%，还含有苯乙酸苯乙脂、十六酸、四十一醇、2-异丙基-5-甲基己醇、十烷醚、二十二醇、二十六醇，此外还检测出8种同分异构体；从露兜提取液中分离出22个峰，鉴定出6种脂肪酸，提取的脂肪酸以十六酸（棕榈酸）含量最高，达35.39%，十八酸含量为18.88%，9-十八碳烯酸（油酸）含量为10.03%，其中十四酸有两个同分异构体。从分析结果知，露兜叶中含有多种在食品发面有很大的应用空间的组分，值得进一步开发研究。

Abstract:

The volatile oil and fatty acids in Screw-pine, a kind of mangrove plants, were determined by GC-MS in this paper. The result indicates that 76 peaks was shown in the chromatogram of the volatile oil extracts in Screw-pine and 60 compounds were identified from the volatile oil extracts of Screw-pine, among which butylated hydroxytoluene had the highest content (19.25%). Benzeneacetic acid, hexadecanoic acid, hentetracontanol, 2-isoproryl-5-methyl-1-hexanol, docosanol, decyl ether, hexacosanol and their isomers were also found in the extracts of the volatile oil. 22 peaks were shown in the chromatogram of the extracts of the fatty acids in Screw-pine and 6 compounds were identified, among which hexadecanoic acid content was as high as 35.39%. Contents of stearic acid and oleic acid were 18.88% and 10.03%, respectively. Two isomers of tetradecanoic acid were found. Further research on the utilization of main constituents from volatile oil and fatty acid of Screw-pine was recommended.