不同种兰花香气成分分析

利用固相微萃取和气相色谱-质谱联用(GC-MS)技术分析了5种兰花的香气成分。结果表明,5种兰花香气成分的种类和含量存在明显差异。绿苹果(Den.LittleGreen Apples)主要由反-2-己烯醛、己醛、丁羟甲苯、乙酸乙酯和3-己烯-1-醇等化合物构成,其中乙酸乙酯和反-2-己烯醛可能是花朵中苹果香的主要来源。香水文心兰(Onc.Sharry Baby)的主要香气化合物是顺-3,7-二甲基-1,3,6-辛三烯、3,7-二甲基-2,6-辛二烯-1-醇和3,7-二甲基-1,6-辛二烯-3-醇,三者的相对含量总和为84.57%。台北小姐(Cym.Miss Taipei)香气成分的主要特征不明显,除4-甲基苯酚和2-乙基丁醛外,其他化合物的相对含量均低于5%。夕阳红(Phal.Taida Salu)有香气成分50种,相对含量为87.01%,主要成分为柯巴烯、正己烷、甲酸己酯和3-己烯-1-醇。绿世界(Blc.Sung Ya Green‘green world’)有香气成分37种,主要由丙基环丙烷、2-(4-甲氧基苯基)乙醇、反-2-己烯-1-醇、3-己烯-1-醇、反-2-己烯醛、丁基呋喃和3,7,11-三甲基-1,6,10-十二碳三烯-3-醇等组成。

Analysis of Aroma Components in Different Orchid Varieties

Gas Chromatography-mass spectrometry(GC-MS) was used to determine aroma components in five orchid varieties.Results showed that there were obvious differences in both components and relative contents among the five orchids.The aroma properties in Den.Little Green Apples depended on ethyl acetate,hexanal,(E)-2-hexenal,3-hexen-1-ol and butylated hydroxytoluene,and apple odor was probably originated from ethyl acetate and(E)-2-hexenal.The main components in Onc.Sweet Sugar were 3,7-dimethyl-1,3,6-octatriene,3,7-dimethyl-2,6-octadien-1-ol and 3,7-dimethyl-1,6-octadien-3-ol,and their total relative content was 84.57%.The characteristic constituents of aroma in Cym.Miss Taipei were not obvious,and the relative content of each aroma property was below 5% besides 2-ethyl-butanal and 4-methyl-phenol.There were 50 aroma components in Phal.Taida Salu and the relative content was 87.01%.The main components were hexane,3-hexen-1-ol,copaene and formic acid hexyl ester.There were 37 aroma components in Blc.Sung Ya Green ’green world’,and the main components were(E)-2-hexenal,3-hexen-1-ol,(E)-2-hexen-1-ol,propyl-cyclopropane,2-n-butyl furan and-3,7,11-trimethyl-1,6,10-dodecatrien-3-ol.