八月瓜果皮挥发油的GC-MS分析

以成熟八月瓜果皮为研究原料,用水蒸汽蒸馏法制备了八月瓜果皮挥发油,并用气相色谱-质谱联用仪测定了挥发油的化学成分。结果表明,八月瓜果皮挥发油中共鉴定出39种组分,包括烃、酸、酯、醛(酮)、醇(酚)、醚、其他等七大类物质,相对含量分别为56.63%、25.44%、8.50%、7.34%、0.57%、0.19%和1.33%。烃类物质的含量最高为56.63%;相对含量大于5%的物质共5种,3-甲基庚烷的相对含量为20.89%,(E)-9-十八烷烯酸相对含量为20.74%,2-甲基庚烷的相对含量为12.74%,乙基环戊烷的相对含量为5.1013%,2-甲基-3-乙基戊烷的相对含量为5.3278%。挥发油中鉴别出高级脂肪酸30.9781%,其中不饱和脂肪酸26.3044%。未鉴定出酰胺类物质和酚醇类物质。

Chemistry Constituent Analysis of Volatile Oils from Akebia Trifoliate by GC-MS

In Akebia trifoliata pericarp as the material, volatile oil was preparative by water vapor distillation method, and chemistry constituent of the volatile oil were authenticated by GC-MS. The results showed that 39 constituent are authenticated in volatile oil from akebia trifoliate. They are hydrocarbons, acids, esters, aldehydes （ketone）, alcohol （phenol）, ether, other, and relative content were 56.63 %, 25.44 %, 8.50 %, 7.34 %, 0.57 %, 0.19 % and 1.33 %, respectively. The hydrocarbon of highest content was 56.63 %, and substance of relative content more than 5 % have 5 kinds. 3-methyl heptane is 20.89 %, （E）-9-eighteen alkane acid is 20.74 %, 2- methyl heptane is 12.74 %, ethyl cyclopentane is 5.1013 % and 2- methyl-3-ethyl pentane is 5.3278 %. The relative content of senior fatty acid is 30.9781% in volatile oil, and the unsaturated fatty acid is 26.3044 %. Amides and phenols alcohols no Unidentified.