烈香杜鹃精油特征香气成分的GC-O-MS分析及其在卷烟中的应用

GC-O-MS Analysis of Characteristic Aroma Components of Rhododendron Anthopogonoides Oil and Its Application to Cigarette

采用水蒸气蒸馏法制备烈香杜鹃精油,并运用气相色谱-质谱联用技术(GC-MS)分析烈香杜鹃精油的挥发性成分,共鉴定出69种化合物。同时,通过香气强度法结合气相色谱-嗅闻技术(GC-O)分析,发现9种香气强度大于3的特征香气成分:叶醇、白菖烯、α-瑟林烯、乙酸苯乙酯、大根香叶烯B、苄基丙酮、2-丁烯基苯、苍术酮和吉马酮;其中3种香气强度大于5的苄基丙酮、叶醇和α-瑟林烯为关键香气成分。将烈香杜鹃精油进行卷烟滤棒添加试验,发现其能赋予卷烟清香、甜香和花香,与烟气协调,细腻柔和烟气,并且增加甜感。

The essential oil of Rhododendron anthopogonoides was prepared by steam distillation,and the volatile components of Rhododendron anthopogonoides oil were analyzed by gas chromatography-mass spectrometry(GC-MS),and a total of sixty-nine compounds were identified.Meanwhile,nine characteristic aroma components with aroma intensity(AI)values greater than 3 were characterized by AI method and gas chromatograph-olfactometry(GC-O)analysis:leaf alcohol,(+)-calarene,α-selinene,phenethyl acetate,germacrene B,benzyl acetone,2-butenyl-benzene,atractyline and germacrone.Three of them,benzyl acetone,leaf alcohol andα-selinene were key aroma components with AI value>5.Then,the cigarette flavoring experiment was carried out with Rhododendron anthopogonoides oil injected into cigarette filter.The results showed that Rhododendron anthopogonoides oil could enhance the refreshing,sweet and flower aroma characteristics,harmonize with the smoke,delicate and soften the smoke,and increase the sweetness.