龙须草稀酸预水解过程中糖类组分的溶出规律

Dissolution Laws of Sugars from Eulaliopsis binata During Dilute Acid-Aided Prehydrolysis

研究了龙须草稀酸预水解过程中温度、时间、稀酸初始质量浓度与戊糖、己糖溶出率之间的关系.结果表明:高温有助于糖类组分的溶出;在不同温度下,戊糖和己糖的溶出率均随水解反应时间的延长而增大;戊糖、己糖的溶出率与预水解因子呈良好的函数关系;随着稀酸初始质量浓度的增大,戊糖和己糖的溶出率增加;拟合发现,戊糖、己糖的溶出率和稀酸初始质量浓度也存在着良好的函数关系.据此总结出了龙须草稀酸预水解过程中戊糖和己糖溶出规律的经验模型,经验证发现,该模型是准确的和有效的.

This paper deals with the relationships between the dissolution rates of pentaose and hexose and such parameters as temperature,time as well as the initial mass concentration of dilute acid during the dilute acid-aided prehydrolysis of Eulaliopsis binata.The results show that high temperature is helpful to the dissolution of carbohydrates,and that,at the same temperature,the dissolution rates of pentaose and hexose,which have functional relation with the prehydrolysis factor,both increase with the hydrolysis time and the initial mass concentration of dilute acid.Moreover,fitting results indicate that there also exist functional relationships between the dissolution rates and the initial mass concentration of dilute acid.Based on the experimental results,two empirical models respectively describing the dissolution laws of pentaose and hexose are established,with their correctness and effectiveness being verified at last.