杨凌地区主要葡萄蒸馏酒的香气成分分析

吸附以酿酒葡萄爱格丽（Ecolly）、小芒森（Petit Manseng）、霞多丽（Chardonnay）、8802和8803为原料，酿造5种葡萄蒸馏酒，采用 搅拌棒萃取-气相色谱-质谱（SBSE-GC-MS）联用技术对其香气成分进行定性定量分析，并进行主成分分析（PCA）和建模验证。 结果 表明，5种葡萄蒸馏酒共检测到71种香气成分，其中酯类、醇类和酸类物质的含量较高。 主成分分析法对17种气味活性值（OAV）≥0.1 的潜在香气成分（关键香气成分）进行分析，结果发现，爱格丽蒸馏酒香气较其他蒸馏酒样更为浓郁，对其香气贡献最大的主要是乙 酯类成分，表现为奶油、菠萝、茴香、青苹果、草莓、紫罗兰等香气类型。 通过建模的方法进一步验证了爱格丽是优质的蒸馏酒酿酒葡 萄品种。

Analysis of the aroma components of distilled spirits from main grape varieties in Yangling area

Using wine grapes Ecolly, Petit Manseng, Chardonnay, 8802 and 8803 as the test materials, 5 kinds of distilled spirit were produced. The flavor components in distilled spirit of grape were qualitatively and quantitatively analyzed by stir bar sorptive extraction-gas chromatography-mass spectrometry (SBSE-GC-MS), and then performed principal component analysis (PCA) and model validation. The results showed that 71 kinds of aroma components were detected in 5 kinds of distilled spirit, among them, the contents of esters, alcohols and acids were higher. 17 kinds of potential aroma components (key aroma components) with odor activity value (OAV) value of 0.1 or greater were analyzed with the PCA method, and the result showed that the aroma of Ecolly distilled spirit was more intense than that of other distilled spirit samples, and the major components that contribute to its aroma was ethyl ester. The esters were mainly composed of cream, pineapple, fennel, green apple, strawberry, violet and other aroma types. Then, the results were further verified by the method of modeling, and it showed that Ecolly was superior wine grape.