枣挥发油的提取及其化学成分的气相色谱─—质谱分析

Extraction of volatile oil from chinese date and conponent analysis by gas Chromatography-mass spectrometry

以红枣为原料，经浸提处理得到以透光率为90％，可溶性固形物含量为14％的大枣清汁，在0．09MPa真空度条件下浓缩至可溶性固形物含量为65％，馏分用乙醚萃取后，利用色谱─质谱联用系统测定。结果表明，馏分中含有71种化合物，在已知的39种中，有7种酯类物质，17种有机酸，6种烷类物质，2种醛类物质，4种醇类物质，2种烯类物质和一种酚类物质。在酯类物质当中。

The extraction of volatile oil from Chinese date was carried out by steam distillation and the treat ment of distillate with ethyl ether to obtain oil fraction. The collected distillate was identified by GS - MS. The result showed that there were 71 compounds separated from the distillate; among the 39 identified compounds were 7 esters, 17 orgnic acids, 6 alkanes, 2 aldehydes, 4 alcohols, 2 olefinic matters and 1 phenol. The peneanoic acid methyl ester was the most significant content among the esters.