中国黄酒中若干重要风味物质嗅觉阈值的研究

首次应用国际公认标准递增必选三杯法(ASTM:E-679),分别由国家黄酒评委和青年消费者组成的品评小组对中国黄酒中的重要风味物质β-苯乙醇,4-乙烯基愈创木酚,香兰素及二甲基三硫进行嗅觉的觉察阈值与识别阈值的测定。获得β-苯乙醇,4-乙烯基愈创木酚,香兰素及二甲基三硫的觉察阈值和识别阈值。其中国家黄酒评委的觉察阈值分别为:871、77、26、0.08μg/L;识别阈值分别为3090、427、98、0.44μg/L。青年消费者的觉察阈值分别为:2042、229、79、0.10μg/L;识别阈值分别为8511、891、191、0.81μg/L。所获得的阈值与已报道的阈值明显不同,说明测定风味化合物在中国黄酒中的阈值的必要性。在此基础上,根据阈值对品评员进行了敏感性分析。结果表明,不同人群的敏感性与性别、生长地域、年龄及嗜好等都有关系。这为黄酒的风味研究提供了基础数据和科学依据,对企业针对不同人群的产品研发具有指导作用。

Study on olfactory thresholds for several aroma components in Chinese rice wine

The international standard of the three - alternative - forced - choice(3 - AFC)method(ASTM:E - 679)was used to determine the olfactory detection thresholds and recognition thresholds of β - phenylethyl,4 - vinyl guaiacol,vanillin,dimethyl trisulfide in Chinese rice wine for the first time. The thresholds(μg/L)of β - phenylethyl,4 - vinyl guaiacol,vanillin and dimethyl trisulfide were obtained by 2 panels of the national judges of Chinese rice wine and young consumers,respectively and The detection thresholds of the national judges were 871,77,26,0. 08μg/L,respectively and the recognition thresholds are 3090,427,98,0. 44μg/L,respectively. The detection thresholds of the young consumers were 2042,229,79,0. 10 μg/L,respectively and the recognition thresholds were 8511,891,191,0. 81μg/L,respectively. This thresholds were different from the literatures. So it was necessary to determine the thresholds of flavor compounds in Chinese rice wine. Based on the results,the sensitivity analysis were carried out for panelists. It was found that the sensitivity of different groups were relation with gender,growth areas,age and hobbys. These results would favor the based date and scientific basis for the flavor study of Chinese rice wine and provide the industry with valuable information and guidelines for different groups.