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.