Volatile compounds on dry red wines of‘Pinot Noir'from two producers in Wuwei

The volatile compounds of‘Pinot Noir'dry red wine from two producers(Huangyanghe and Suwushan)in Wuwei were analyzed with dichloromethane as the extracts and gas chromatography-mass spectrometry(GC-MS).The odor activity value(OVA)was employed for evaluating the contribution of volatile compounds.The result showed that 57 aroma compounds were identified.The major compounds included 3-methyl-1-butanol,2-methyl-propanol,ethyl acetate,acetic acid,phenyl ethanol,1-propanol,2,3-butanediol,1-hexanoic acid,3-hydroxy-2-butanone.The main contributing compounds included 3-methyl-1-butanol,2-methyl-propanol,benzyl alcohol,ethyl octanoate,isoamyl acetate,ethyl acetate,isovaleric acid,2-methyl-butyric acid,hexanoic acid and octanoate.There were 53 aroma compounds identified form Huangyanghe wine,26 aroma compounds identified from Suwushan wine,the total aroma content was 593.49mg/Land 472.62mg/L respectively.It is suggested that there is a significant difference in type and content of major volatile compounds and main contributing compounds,the differences represent their own specific flavor characteristics.