新疆焉耆盆地产区4种甜白葡萄酒中挥发性香气成分分析

Analysis of volatile aroma components in 4 kinds of sweet white wines in Yanqi Basin region of Xinjiang

为了研究焉耆盆地产区甜白葡萄酒的挥发性香气成分,延伸该产区甜白葡萄酒的产业链,该实验采用顶空固相微萃取(HS-SPME)结合全二维气相色谱-飞行时间质谱(GC×GC-TOFMS)检测了新疆焉耆盆地产区的4种甜白葡萄酒中的香气成分,并对分析结果进行主成分分析(PCA)。结果表明,新疆焉耆盆地产区4种甜白葡萄酒中共检测出103种香气成分,其种类相似,但含量有差别,酯类和醇类物质总含量在各样品中均占80%以上。通过PCA初步确定了焉耆盆地产区4种甜白葡萄酒中各自的特征香气化合物,且4种甜白葡萄酒挥发性香气成分之间的得分关联度较小,构成了甜白葡萄酒独特的风味特征。

In order to study the volatile aroma components of sweet white wine in Yanqi Basin region and extend the industrial chain of sweet white wine in this region,aroma components in 4 kinds of sweet white wines in the Yanqi Basin region of Xinjiang were detected by headspace solid-phase microextraction(HS-SPME)combined with comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry(GC×GC-TOF MS),and principal component analysis(PCA)was performed based on analysis results.The results showed that a total of 103 aroma components were detected in 4 kinds of sweet white wines in Yanqi Basin region of Xinjiang.The types were similar,but the contents were different.The total contents of esters and alcohols accounted for more than 80%of each sample.The characteristic aroma compounds of 4 kinds of sweet white wines in Yanqi Basin region were preliminarily determined by PCA,and the score correlation between volatile aroma components of the 4 kinds of sweet white wines was small,which constituted the unique flavor characteristics of sweet white wines.