复合菌在浓香型白酒丢糟处理中的应用

Application of mixed cultures in the treatment of distillers’ grains of Luzhou flavor liquor

摘要:

【目的】探讨酵母、细菌用于浓香型白酒丢糟处理的应用效果。【方法】对分离自浓香型白酒酿造环境并经多级筛选得到的3株细菌及2株酵母，在不添加任何辅料的情况下，采用不同组合方式，以2%接种量接种丢糟，检测其对丢糟主要成分的影响。【结果】研究发现所有复合菌均可使丢糟酸度及纤维素含量下降，同时能有效增加丢糟蛋白质含量，其中复合菌B5可使其丢糟纤维素降解23.89%，B4可使丢糟蛋白质提高74.01%，达到17.792%。【结论】复合菌在丢糟饲料或有机肥生产中具有很好的应用价值。

关键词:白酒丢糟，复合菌，纤维素，蛋白质

Abstract:

[Objective] In order to estimate the application of some bacteria and yeast in the treatment of distillers’ grains. [Methods] Three strains of bacteria and 2 strains of yeast isolated from Luzhou flavor liquor brewing environment were mixed in different groups, then inoculated to the distillers’ grains by an inoculum of 2% without any additives. The main constitutions of the grains were detected to estimate the effects of these strains. [Results] The results showed that the content of acid and cellulose of the distillers’ grains decreased, and the protein increased in all treatments, especially, the cellulose in B5 degraded 23.89% and the content of the protein in B4 improved to 17.792% by a rate of 74.01%. [Conclusion] These mixed strains were predictively effective and available in lees feed or organic fertilizer producing.

Key words:Distillers’ grains, Composite microbial inoculum, Cellulose, Protein