黄酒具有独特的香气和丰富的营养价值,兼具饮用和药用价值.不同风味黄酒产品挥发性香气成分也不同,是黄酒品评考察的主要指标之一.本文选取元红、加饭、善酿、香雪4种典型风味绍兴黄酒为检测样品,采用电子鼻系统检测记录了不同黄酒样品的香气数据,并且以随机共振信噪比分析方法提取黄酒香气特征值.结果表明,检测样品酒特征值顺序依次为善酿＞香雪＞加饭＞元红,而且可以对不同风味绍兴黄酒可以得到直观有效的区分,该方法为黄酒品质控制提供了一种新的途径.%Rice wine is provided with special aroma and abundant nutrition, and it is of drink and medical value. Rice wines in different flavors have different volatiles, which is one of the very principal indexes during rice wine analysis procedure. We select four classic Shaoxing rice wine (Yuanhong, Jiafan, Shanniang and Xiangxue) as samples,and use electronic nose system to obtain aroma data of different rice wine samples. Stochastic resonance signal-to-noise ratio spectrum technique is used to extract rice wine aroma features. Experimental results show that rice wine features in increasing order are Shanniang,Xiangxue,Jiafan and Yuanhong,which indicates the electronic nose system presents intuitive and effective discriminating ability to Shaoxing rice wine. The method also provides a new way for rice wine quality control during producing procedure.
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