褐藻纤维素稀酸水解工艺优化

Optimization of Hydrolysis Process of Algal Cellulose Dilute Acid

本论文对褐藻纤维素的稀硫酸水解工艺进行优化。影响稀硫酸水解的三个因素分别是:加热温度、水解时间、稀硫酸浓度。单一因素分析得出:稀硫酸水解褐藻纤维素还原糖产率随温度(温度范围80~200℃)升高而升高,;随稀硫酸浓度(浓度范围1%~10%)增加而增加,随水解时间(水解时间范围80~180 min)增加而增加。正交实验得出的最优水解条件是:水解温度200℃,稀硫酸浓度10%,水解时间60分钟,可得到还原糖产率98.62%。

this paper optimizes the hydrolysis process of cellulose in brown algae. The three factors that influence the hydrolysis of dilute sulfuric acid are： heating temperature, hydrolysis time and dilute sulfuric acid concentration. Single factor analysis, dilute sulfuric acid hydrolysis of cellulose reducing sugar yield of brown algae with temperature （80-200 ℃ temperature range） rises,; Increased with the concentration of dilute sulfuric acid （1% to 10%）; The time of hydrolysis （the time range of water hydrolysis was 80min - 180min） increased. Orthogonal experiment the optimum.