文章摘要
张璟琳,李娟,王娟,孙宝国,刘玉平,黄明泉.树苔浸膏中关键气味活性化合物[J].精细化工,2019,36(7):
树苔浸膏中关键气味活性化合物
Identification of the Key Odorants in treemoss Extracts
投稿时间:2019-01-14  修订日期:2019-03-13
DOI:
中文关键词: 树苔浸膏  固相微萃取  溶剂辅助风味蒸发  气相色谱-嗅闻检测技术  关键气味活性化合物
英文关键词: treemoss extracts  solid-phase microextraction (SPME), solvent-assisted evaporative extraction (SAFE)  gas chromatography-olfactory (GC-O)  key odorants
基金项目:酒类风味品质与安全科研创新团队项目;国家自然科学基金面上项目
作者单位E-mail
张璟琳 北京工商大学 zhjinglin0130@163.com 
李娟 北京工商大学  
王娟 北京工商大学  
孙宝国 北京工商大学  
刘玉平 北京工商大学  
黄明泉 北京工商大学 hmqsir@163.com 
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中文摘要:
      香气是评价浸膏品质的重要指标,通过研究浸膏中的香气成分可以为浸膏的应用和质量控制提供参考依据。利用固相微萃取(SPME)和溶剂辅助风味蒸发(SAFE)两种方法结合GC-MS对树苔浸膏中的挥发性香气成分进行分析。通过香气提取物稀释分析(AEDA)对树苔浸膏中的香气活性物质进行鉴定,结果表明利用SPME和SAFE两种前处理方法共鉴定出102种挥发性成分,香气活性成分为27种,其中香气稀释因子(flavor dilution factor,FD因子)较高(FD>9)的为β-苔黑酚羧酸甲酯,戊酮酸乙酯,苔黑酚羧酸乙酯,赤星衣酸乙酯,壬酸乙酯,庚酸乙酯,苯乙酸乙酯。进一步的定量及气味活度值(OAV)计算再次确认关键气味活性化合物为β-苔黑酚羧酸甲酯,苔黑酚羧酸乙酯,庚酸乙酯。
英文摘要:
      Aroma is one of the important standards to evaluate extracts. Analysis flavor components will provide reference for extracts application and quality control standard. The volatile flavor components of treemoss extracts were analyzed by solid phase microextraction (SPME) and solvent-assisted flavor evaporation (SAFE) combined with gas chromatography-mass spectrometry (GC-MS) and the aroma active components were confirmed by gas chromatograph-olfactometer (GC-O) with aroma extract dilutions analysis (AEDA). It was shown that a total of 102 compounds in two treemoss extracts samples (S1 and S2) were identified. Among these, there were 27 active odorants in two treemoss extracts, and the odorants with FD > 9 were methyl β-orcinolcarboxylate, ethyl levulinate, ethyl orsellinate, ethyl hematommate, ethyl nonanoate, ethyl heptanoate and ethyl phenylacetate. Moreover, these active odorants were quantitated by internal standard method and its odor active values (OAV) were calculated; it was confirmed methyl β-orcinolcarboxylate, ethyl orsellinate and ethyl heptanoate were the key odorants of the treemoss extracts.
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