浓香型白酒窖泥水分含量与水分活度的对比研究

摘要

为弥补水分含量指标在窖泥质量评价方面存在的缺陷,该研究引入水分活度指标用于浓香型窖泥质量评价.对比分析二者在不同地区、不同质量等级窖泥间的差异,研究其分布规律,以进一步完善浓香型窖泥质量评价体系.研究结果表明,水分含量与水分活度指标虽均未能完全区分开不同质量等级的窖泥,但与水分含量指标相比,水分活度指标在不同地区、不同酒厂窖泥间的分布趋势是一致的,受外界干扰因素影响更小,更适用于评价窖泥质量,值得进一步深入研究.%In order to make up for the defect of water content index in the aspects of the quality evaluation of pit mud,the water activity index was in troduced to evaluate the quality of Luzhou-flavor Baijiu pit mud.The differences between two indexes in the different regions and different quality grades of pit mud were contrasted and analyzed,the distribution law was studied to further improve the quality evaluation system of Luzhou-flavor Baijiu pit mud.The results showed that although the water content and water activity could not be able to separate the pit mud of different quality grades completely,but compared to the water content index,the distribution trend of water activity index was consistent in different regions and dif ferent distilleries of pit mud,and the outside interference factors had less effect on the water activity,which was more suitable for the pit mud quality evaluation and worth further research.