食品科学

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红油香椿嫩芽不同生长期和空间部位挥发性成分分析

杨 慧1,王赵改1,*,王晓敏1,史冠莹1,张 乐1,梁万平2   

  1. YANG Hui1, WANG Zhaogai1,*, WANG Xiaomin1, SHI Guanying1, ZHANG Le1, LIANG Wanping2
  • 出版日期:2016-11-16 发布日期:2017-02-22
  • 基金资助:
    河南省财政预算项目(豫财预(2016)79号;20148410);
    中央财政农业技术推广补助资金项目(豫财农(2014)315号)

Analysis of Volatile Components of Toona sinensis Buds at Different Growth Stages and Its Different Parts

1.河南省农业科学院农副产品加工研究中心,河南 郑州 450002;#br# 2.驻马店市农业科学院资源环境研究所,河南 驻马店 463000   

  1. 1. Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. Institute of Resources and Environment, Zhumadian City of Agricultural Sciences, Zhumadian 463000, China
  • Online:2016-11-16 Published:2017-02-22

摘要: 以红油香椿幼嫩组织为研究对象,利用顶空固相微萃取及气相色谱-质谱联用技术分别对不同生长期、空间部位各香气成分种类和相对含量进行测定。结果表明:香椿生长期Ⅰ共检测到挥发性化合物成分35 种、生长期Ⅱ17 种、生长期Ⅲ 22 种、生长期Ⅳ15 种、生长期Ⅴ12 种、生长期Ⅵ16 种;随着香椿嫩芽的不断生长,羰基类、含硫类、醇类整体均呈先上升后下降的趋势,烯类整体呈先下降后上升趋势,烃类、其他类均逐渐下降。红油香椿嫩芽上部共检测出挥发性香气成分26 种、中部19 种、下部12 种,其中含硫类化合物相对含量分别达72.15%、88.33%和88.59%,构成香椿的主要香气成分。根据不同空间部位香椿特征香气成分2-巯基-3,4-二甲基-2,3-二氢噻吩相对含量推测,中部为香椿香气释放的关键部位。

关键词: 红油香椿, 生长期, 部位, 挥发性成分, 顶空固相微萃取

Abstract: The volatile components in Toona sinensis buds at different growth stages and it different parts were analyzed by
headspace solid-phase micro-extraction and gas chromatography-mass spectrometry (GC-MS). The results obtained were
as follows: (1) there were 35 components identified at stage Ⅰ, 17 at stage Ⅱ, 22 at stage Ⅲ, 15 at stage Ⅳ, 12 at stage
Ⅴ and 16 at stage Ⅵ. With the growth of T. sinensis, the relative contents of carbonyls, sulfur, alcohols were increased at
first and then decreased, while vinyl showed just the opposite trend. Hydrocarbons and the other compounds were gradually
decreased; and (2) 26 components were found to be present in the upper part, 19 in the middle part, and 12 in the lower part
of buds with sulfur-containing compounds comprising 72.15%, 88.33% and 88.59% of the total volatiles, respectively, which
were confirmed as the main aroma components of T. sinensis. The middle part was suggested as the main releasing part
according to the relative content of the characteristic aroma component 2-mercapto-3,4-dimethyl-2,3-dihydrothiophene.

Key words: Toona sinensis, growth stage, part, aroma components, headspace solid-phase microextraction

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