高浓度糖蜜快速热澄清发酵酒精技术的研究

Study on the Fermentation Technology of High Concentration of Molasses Alcohol Rapid Heating Clarification

酒精高浓度发酵能够提高发酵醪液含酒分,可以节省酒精蒸馏蒸汽消耗量,减少酒精废醪液排放量,提高设备利用率,日益受到酒精生产企业的重视。目前糖蜜酒精生产发酵含酒分普遍偏低,糖蜜高浓度发酵面临很大困难,笔者认为主要原因是糖蜜中的灰分和胶体等杂质含量不断增高,会抑制酵母的繁殖和发酵,影响糖蜜高浓度发酵酒精。对糖蜜进行澄清处理是实现糖蜜酒精浓醪发酵的快捷途径,通过对糖蜜快速热澄清处理,得到糖蜜高浓度发酵酒精,与传统糖蜜酸化后发酵酒精相比,发酵含酒分明显提高,发酵成熟醪锤度降低。

High concentrations of alcohol fermentation could improve fermentation ethanol contents, save alcohol distillation steam consumption, reduce waste liquor of alcohol, and improve the utilization rate of equipment. It had been paid more attention by alcohol production enterprises. The content of alcohol fermentation of molasses alcohol was generally low, so the molasses high concentration fermentation was facing great difficulties. The author thought that the main reason was ash and colloid impurities content in molasses increasing continuously, which could inhibit yeast growth and fermentation and affect the molasses fermentation of high concentration alcohol. The rapid clarification of molasses was a quick way to realize high concentration fermentation of molasses. The high concentration fermentation of molasses alcohol was obtained through the molasses rapid thermal clarification, compared with the traditional acidification fermentation of molasses alcohol, molasses alcohol fermentation liquor with clarification obviously improved, and mature fermented mash brix reduced.