洋河系列绵柔型白酒香气成分研究

利用液液萃取法提取洋河系列绵柔型白酒中的香气化合物,通过气相色谱-闻香法(GC-O)及气相色谱-质谱(GC-MS)技术对其进行鉴定。在具有典型绵柔型特征的海之蓝、天之蓝和梦之蓝三种酒中分别检测出55、57和59种呈香化合物。研究发现洋河系列绵柔型白酒的主要风味物质为己酸乙酯,对其风味有较大贡献的还有己酸、丁酸乙酯、二甲基三硫、三甲基吡嗪、γ-壬内酯。此外,在海之蓝中苯乙醛、3-甲基丁醇、庚酸乙酯、己酸-3-甲基丁酯、丁酸、乙酸对其风味贡献较大;天之蓝中1-辛烯-3-酮、辛酸乙酯、2-乙酰基-5-甲基呋喃、丁酸香气强度较大;梦之蓝中1-辛烯-3-酮、己酸-3-甲基丁酯、2-羟基-3-甲基丁酸乙酯、辛酸乙酯、4-甲基苯酚、庚酸乙酯香气强度较大。

Identification of aroma compounds of supple and mellow aroma style liquors of Yanghe series

The aroma compounds of supple and mellow aroma style liquors of Yanghe series were extracted by liquid-liquid extraction,and identified by gas chromatography-olfactometry(GC-O)and gas chromatography-mass spectrometer(GC-MS).The total numbers of aroma compounds detected from three typical supple and mellow aroma style liquors(sea-blue,sky-blue and dream-blue)were 55,57,and 59,respectively.The results showed that ethyl hexanoate was the most important flavor compound in supple and mellow aroma style liquors,and hexanoic acid,ethyl butanoate,dimethyl trisulfide,2,3,5-trimethylpyrazine,and γ-nonalactone were important aroma compounds in this three liquors.In addition,benzeneacetaldehyde,3-methylbutanol,ethyl heptanoate,3-methylbutyl hexanoate,butanoic acid,and acetic acid were important flavor contributor to sea-blue,and 1-octen-3-one,ethyl octanoate,2-acetyl-5-methylfuran,and butanoic acid to sky-blue,and 1-octen-3-one,3-methylbutyl hexanoate,ethyl 2-hydroxy-3-methylbutanoate,ethyl octanoate,4-methylphenol,and ethyl heptanoate to dream-blue.