用 90 %乙醇从香草兰豆荚中萃取香味物质 ,并用GC/MS分析其挥发性化学成分 ,鉴定出 19个已知化合物 ,其中醛类 5个 ,酯类 4个 ,醚类 2个 ,烷烃 4个 ,烯烃 2个 ,脂肪酸 2个。萃取物挥发性成分中 ,香兰素的相对含量最高 ,为2 9 .95 %。 Fragrances were extracted from vanilla pods with 90% ethanol and their volatile chemical constituents were analyzed by GC / MS. Nineteen known compounds were identified, of which five were aldehydes, four were esters, two were ethers, four were alkanes 4 A, two olefins, two fatty acids. Volatile compounds extract the highest relative content of vanillin, 29.95%.