Investigation of the Factor Influencing the Yield of Sugar Produced from Corn Stalk with the Method of Acidolysis
Investigation of the Factor Influencing the Yield of Sugar Produced from Corn Stalk with the Method of Acidolysis
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发表时间：
2010
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通讯作者：
Jiao Cui-ying
中科院分区：
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作者：
Jiao Cui-ying
[目的]通过考察酸解工艺对玉米秸秆制糖的影响，为进一步提高玉米秸秆的利用率提供参考。[方法]通过单因素正交试验，考察了硫酸浓度、酸解温度、酸解时间、料液比对玉米秸秆糖得率的影响。[结果]影响玉米秸秆糖得率的因素依次为：酸解温度、稀硫酸浓度、酸解时间、料液比，最佳酸解条件为：酸解温度120 ℃，稀硫酸浓度1.5%，酸解温度120 ℃，稀硫酸浓度1.5%。酸解时间为60 min，玉米秸秆得率为7.5%，在此条件下，还原糖生成率为29.64%。[结论]为进一步提高玉米秸秆的利用转化率提供了重要的理论依据和借鉴。
[Objective] The reference for the further improvement of the utilization of corn stalk was provided through the investigation of the impact of the aciddolysis technique on the sugar-producing from corn stalk.[Method] The influence of the concentration of sulfuric acid(H2SO4),aciddolysis temperature and time,rate of corn stalk to solution on the yield of the sugar from corn stalk was measured through the orthogonal design of single factor.[Results] The experimental results showed that all those factors affected yield of the sugar from corn stalk and the order of the factor affecting its yield was the aciddolysis temperature the concentration of the dilute sulfuric acid the aciddolysis time the rate of corn stalk to solution.The best condition of aciddolysis treatment was as follows:the aciddolysis temperature was 120 ℃;the concentration of sulfuric acid,1.5%;the aciddolysis time,60 minutes and the rate of corn stalk to solution,7.5%;under which,the rate of reducing sugar formation was 29.64%.[Conclusion] The important theoretical basis and learn in the further study on the improvement of the utilization and conversion of corn stalk was provided.