调味香料云南爪哇香茅挥发油化学成分的研究Chemical composition analysis of stage extraction volatile oils in spice,Cymbopogon winterianus grown in Yunnan
杨欣,姜子涛,李荣
摘要(Abstract):
爪哇香茅精油主要用于肉类食品的调味,文章采用水蒸气蒸馏法提取了云南产爪哇香茅中的挥发油,通过气相色谱/质谱(GC/MS)联用技术,结合计算机质谱库检索,对所分离的云南爪哇香茅挥发油进行了成分鉴定,为进一步开发利用提供了依据。实验发现,水蒸气提取爪哇香茅的最佳提取条件是:蒸馏时间2 h,料液比为1∶15。从中确定了38种化合物,占挥发性物质含量的94.64%。其中18种成分在云南爪哇香茅中尚属首次发现,16种成分国内外均未见报道。爪哇香茅挥发油的主要成分是香叶醇20.12%、香茅醛17.36%、榄香醇10.50%和香茅醇10.31%等。另外,根据挥发油的颜色变化和提取时间,将挥发油分为0~10 min,10~60 min,60~120 min三个馏分。在这三馏分的挥发油中,四种主要成分的含量存在着明显的差异。
关键词(KeyWords): 爪哇香茅;挥发油;分段提取;气相色谱/质谱
基金项目(Foundation): 天津市高校科技发展基金项目资助
作者(Author): 杨欣,姜子涛,李荣
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