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通过温度、pH、梯度总糖浓度以及调pH试剂等因素对玉米皮水解糖液存放过程中总糖浓度变化趋势的影响进行深入研究,实验结果表明:选取NaOH作为调pH试剂比较经济,且选择在80～160g/L、pH4.0条件下存放可较好保存糖液品质,确定出在0～48h范围内可选择低温(4℃)至室温(20℃)条件下存放,而48～120h范围内只能选择低温存放(4℃),室温条件下较长存放时间的糖液易被环境微生物发酵利用掉,为玉米皮水解糖液的短期存放提供一定的帮助。
The effects of temperature, pH, total sugar concentration in gradient and pH adjusting reagent on the change trend of total sugar concentration in corn bran hydrolyzate werestudied in detail. The experimental results showed that NaOH was selected as the pH adjusting reagent and economical Under the conditions of 80 ~ 160g / L, pH4.0, the quality of the sugar liquid can be well preserved, and it can be stored under the condition of low temperature (4 ℃) to room temperature (20 ℃) within 0 ~ 48h, Only low-temperature storage (4 ℃) can be selected in the range. The longer storage time of sugar solution at room temperature is easy to be utilized by the fermentation of environmental microorganisms, which will help to provide short-term storage of corn bran hydrolysis sugar solution.