Correlation analysis of sensory characteristics and characteristic flavor of Guizhou yingbinjiu Mianrou sauce-flavor Baijiu
ZHANG Jiaojiao, LIANG Mingfeng, LEI Xianzhong, XUE Xinxin, CHEN Yuqi, SHEN Shiming, HE Mengchao, HU Jinghui, XIE Sankuan, ZHANG Mingsong, HAN Xinglin
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(1.China National Research Institute of Food and Fermentation Industries Co., Ltd., Beijing 100015, China; 2.International Joint Research Center of Quality and Safety of Alcoholic Beverages, Beijing 100015, China; 3.Guizhou Yingbin Liquor Co., Ltd., Renhuai 564500, China)
Taking the Mianrou sauce-flavor Baijiu (Chinese liquor) as the research object, the sensory characteristics and flavor characteristics of Mianrou sauce-flavor Baijiu were analyzed by the technologies of quantitative description analysis and chromatographic analysis. At the same time, the correlation between them was studied by spearman index. The results showed that the Mianrou sauce-flavor Baijiu had the characteristics of outstanding sauce, good flower-fruit and burnt flavor, comfortable aging flavor, lasting aroma in empty cup, soft, sweet, clean and harmonious liquor body, and typical sauce-flavor style. The characteristics of flavor composition were total alcohols 21%-32%, total esters 38%-45%, total acids 19%-22%, total aldehydes 8%-12%, total ketones 0.9%-2.0% and total aromatic compounds 0.22%-0.28%, with a relatively high proportion of alcohols and ketones and higher lactic acid/acetic acid value. The flavor substances that had a great positive effect on the Mianrou sauce-flavor Baijiu were n-propanol, secondary butanol, 2,3-butanediol, 3-hydroxy-2-butanone and propionic acid. The sensory characteristics of sauce-flavor, aged flavor, mellow flavor, burnt flavor, sour taste, bitter taste, aged wine taste, aftertaste, softness, and refreshing sense were easily affected by flavor substances, and the flavor substances with great influence were isoamyl alcohol, ethyl isovalerate, ethyl butyrate, acetal, benzaldehyde, active amyl alcohol, and phenyl ethanol.