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

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。

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

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.