广西原生葡萄酒凌丰和野酿2号典型香气特征分析

Typical aroma characteristics of Guangxi native wines Lingfeng and Yeniang No. 2

  • 摘要: 【目的】明确广西原生葡萄酒凌丰和野酿2号的香气成分及典型香气特征,为广西原生葡萄酒风味特征挖掘与品质提升提供理论支撑。【方法】应用顶空固相微萃取和气相色谱—质谱联用技术,鉴定凌丰和野酿2号2个毛葡萄品种酿造的原生葡萄酒挥发性成分种类及含量;采用香气活性值(OAV)鉴定出活性香气成分和具有突出贡献的特征香气成分;应用香气轮廓法及香韵分析法分析2种原生葡萄酒典型香气特征。【结果】凌丰酒色更为鲜艳,但其干浸出物、可滴定酸和总糖含量低于野酿2号,二者均为干型葡萄酒。2种原生葡萄酒样品共鉴定出77种挥发性成分,包括醇类15种、酯类48种、醛类2种、萜烯类3种、酸类4种、其他5种。其中,凌丰葡萄酒鉴定出49种,挥发性成分总含量为17464.7 μg/kg;野酿2号葡萄酒鉴定出57种,挥发性成分总含量为12584.6 μg/kg。通过OAV分析,确定凌丰葡萄酒的活性香气成分有9种,特征香气化合物为癸酸乙酯、己酸乙酯、乙酸己酯和辛酸乙酯;野酿2号葡萄酒的活性香气成分有13种,特征香气化合物为异戊酸乙酯、乙酸异戊酯、丁酸乙酯、辛酸乙酯和癸酸乙酯。香气轮廓和香韵分析结果显示,凌丰葡萄酒典型香气特征包括果香、脂肪香、花香和少量的烤香、甜香;野酿2号葡萄酒典型香气特征包括果香、脂肪香、花香和甜香。【结论】2种广西原生葡萄酒具有典型的东亚种群特征,以果香为主要特征,但同时存在脂肪等不愉悦的风味,且花香特征较薄弱。凌丰葡萄酒香气浓郁度、典型性等香气品质更优。

     

    Abstract: 【Objective】To provide theoretical support for the exploration of aroma characteristics and quality improvement of Guangxi native wine,this study identified the specific aroma components and typical aroma characteristics of Guangxi native wines Lingfeng and Yeniang No. 2.【Method】Headspace solid-phase microextraction/gas chromatographymass spectrometry(HS-SPME-GC-MS)technique was used to identify the types and contents of volatile components in native wines brewed by two Vitis quinquangularis cultivars Lingfeng and Yeniang No. 2. Aroma activity value(OAV) was used to identify the active aroma components and the characteristic aroma components with outstanding contribution. The aroma profiles method and aroma analysis method were used to determine the distinctive aroma characteristics of the two wine varieties.【Result】The color of Lingfeng wine was more vivid. However,its indicators such as dry extract,titratable acid,and total sugar comtents were lower than those of Yeniang No. 2. Both of them were dry wines. A total of 77 volatile components were identified in the two wine samples,including 15 alcohols,48 esters,2 aldehydes,3 terpenes, 4 acids and 5 others. With 49 components identified in Lingfeng and a total volatile content of 17464.7 μg/kg,while Yeniang No. 2 had 58 components identified with a total volatile content of 12584.6 μg/kg. Through OAV analysis,9 active aroma components were determined for Lingfeng wine,with characteristic aroma compounds such as ethyl caprate,ethyl caproate,ethyl acetate,and ethyl caprylate. For Yeniang No. 2 wine,13 active aroma components were identified,with characteristic aroma compounds including ethyl isovalerate,isoamyl acetate,ethyl butyrate,ethyl caprylate and methyl caprate. Through aroma profiles and aroma analysis,the typical aroma characteristics of Lingfeng wine included fruity aroma,fatty aroma,floral aroma,and a small amount of roasty aroma and sweety aroma,while Yeniang No. 2 wine exhibited typical aroma characteristics of fruity aroma,fatty aroma,floral aroma,sweety aroma.【Conclusion】The two native wines of Guangxi exhibit characteristics of East Asian group,with fruity aroma as the main feature,but there may be some unpleasant flavors such as fatty aroma,and the floral aroma characteristics are relatively weak. Lingfeng wine has better overall aroma quality in aroma intensity and typicality.

     

/

返回文章
返回