本文对云南产的单瓣晚香玉和重瓣晚香玉提取净油，并运用气相色谱-质谱法（GC-MS）分析成分及含量。结合评香结果，研究单瓣晚香玉和重瓣晚香玉净油成分的差异性。结果表明：两个品种的晚香玉主成分是：alpha-松油醇、邻氨基苯甲酸甲酯、异丁香酚甲醚、金合欢醇、苯甲酸苄酯、水杨酸苄酯等。单瓣晚香玉净油的主香成分含量较高，如：单瓣晚香玉净油的alpha-松油醇、邻氨基苯甲酸甲酯、金合欢醇、苯甲酸苄酯的含量分别为3.679%、11.564%、13.263%、39.785%；重瓣晚香玉净油的alpha-松油醇、邻氨基苯甲酸甲酯、金合欢醇、苯甲酸苄酯的含量分别为2.706%、6.038%、6.394%、26.005%。重瓣晚香玉浸膏、净油得率较高。

To analysis the chemical constituents of absolute oil from two varieties of Tuberose in Yunnan provice by GC-MS. Comparing the difference of the chemical constituents between unipetalous Tuberose and polyphyll Tuberose, combineing the sensory evaluation.The dates show that the main compounds include: 3-Cyclohexene-1-methanol, trimethyl-, Benzoic acid, 2-amino-, methyl ester, Benzene, 1,2-dimethoxy-4-(1-propenyl)-, 2,6,10-Dodecatrien-1-ol, 3,7,11-trimethyl-, (E,E)-, BenzylBenzoate, Benzoic acid, 2-hydroxy-, phenylmethyl ester,ect. The contents of main constituents of absolute oil of unipetalous Tuberose are higher than the contents of main constituents of absolute oil of polyphyll Tuberos.For example: the contnets of 3-Cyclohexene-1-methanol, trimethyl-, Benzoic acid, 2-amino-, methyl ester, 2,6,10-Dodecatrien-1-ol, 3,7,11-trimethyl-, (E,E)-, BenzylBenzoate of unipetalous Tuberose are 3.679%, 11.564%, 13.263%, 39.785%; in the contrast polyphyll Tuberose are 2.706%, 6.038%, 6.394%, 26.005%. The extraction rate of polyphyll Tuberose is higher than unipetalous Tuberose.

云南省应用基础研究面上项目(2011FZ095)；云南省应用基础研究面上项目(2010ZC086)