连续逆流萃取技术在浓香型白酒酿造中的应用

摘要

采用CO2连续逆流超临界萃取技术，从浓香型白酒发酵副产物黄水中提取香味物质，并应用于浓香型白酒的勾调。结果表明，采用连续逆流萃取技术相比间歇式萃取，其产出率更高，可达5．5％～6％，且萃取产品质量稳定。该技术应用于浓香型白酒的酿造，能有效提高白酒酒体风味质量，增加白酒香气的浓郁度，提升口感的舒适度，使酒体变得更加浓郁、醇甜、绵软、协调。%Carbon-dioxide consecutive countercurrent-flow extraction was adopted for the extraction of flavoring substances from yellow water (by-product during the fermentation of Luzhou-flavor liquor) and the extracted substances were then used for liquor blending. Compared with in- termittent countercurrent-flow extraction, the new method could improve the productivity by 5.5 %-6 % and the extracted product quality was stable. The application of such new technology in Luzhou-flavor liquor production could effectively improve flavor quality of liquor body, en- hance the mellow degree of liquor aroma, perfect liquor taste, and make better liquor body.