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首页> 外文会议>American Chemical Society symposium on flavor chemistry of wine and other alcoholic beverages >Identification of Aroma Compounds in Chinese 'Moutai' and 'Langjiu' Liquors by Normal Phase Liquid Chromatography Fractionation Followed by Gas Chromatography/Olfactometry
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Identification of Aroma Compounds in Chinese 'Moutai' and 'Langjiu' Liquors by Normal Phase Liquid Chromatography Fractionation Followed by Gas Chromatography/Olfactometry

机译：正常相液相色谱分离，随后通过气相色谱/嗅觉分离鉴定中文“Moutai”和“Langjiu”液体的芳香化合物

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摘要

The aroma-active compounds in two famous Chinese soy sauce aroma type liquors, Moutai and Langjiu liquors, were investigated in this study. The aroma compounds were isolated using liquid/liquid extraction, and further fractionated into acidic, basic, and neutral fractions. The neural fraction was applied to a normal phase liquid chromatography column and further separated based on their polarity. The aroma compounds of seven fractionations were separately analyzed by GC/Olfactometry (GC/O). A total of 186 aroma-active compounds were identified by GC/O and GC/MS. Among these compounds, ethyl hexanoate, hexanoic acid, 3-methylbutanoic acid, 3-methylbutanol, 2,3,5,6-tetramethylpyrazine, ethyl 2-phenylacetate, 2-phenylethyl acetate, ethyl 3-phenylpropanoate, 4-methylguaiacol, and y-decalactone had the highest aroma intensity. Several other basic compounds, including 2,3-dimethyl-5-ethylpyrazine, 2,3,5-trimethyl-6-ethylpyrazine, 2,3,5-trimethylpyrazine, were identified to have high aroma indentify. In addition, vanillin, γ-heptalactone, γ-nonalactone, Z-whisky lactone, furaneol, and sotolon, were identified in the liquors. Geosmin was also detected in these two liquors.
机译：在这项研究中调查了两个着名的中国酱油芳香型液体，Moutai和Langjiu液中的香气活性化合物。使用液/液萃取分离芳香化合物，进一步分离成酸性，碱性和中性级分。将神经级分施加到正常相液相色谱柱上，并基于它们的极性进一步分离。通过GC / olFactometry（GC / O）分别分析七分馏的芳香化合物。 GC / O和GC / MS共鉴定了总共186个香气活性化合物。在这些化合物中，六己酸乙酯，六烷基酸，3-甲基丁酸，3-甲基丁醇，2,3,5,6-四甲基吡嗪，乙基2-苯基乙酸乙酯，2-苯基乙酸乙酯，乙基3-苯基丙酸乙酯，4-甲基桂醇，和Y -decalactone具有最高的香气强度。其他几种碱性化合物，包括2,3-二甲基-5-乙基吡嗪，2,3,5-三甲基-6-乙基吡嗪，2,3,5-三甲基吡嗪，鉴定具有高香气依附5。此外，在液体中鉴定了Vanillin，γ-庚酮，γ-壬酮，Z-威士忌内酯，呋喃酚和西兰酮。在这两种液体中也检测到地质皂甙。

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