| 玉米芯中木聚糖水解制备D-木糖的试验研究 |
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| 引用本文： | 任素霞,雷廷宙,朱金陵,何晓峰,徐海燕.玉米芯中木聚糖水解制备D-木糖的试验研究[J].河南科学,2012,30(1):51-54. |
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| 作者姓名： | 任素霞 雷廷宙 朱金陵 何晓峰 徐海燕 |
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| 作者单位： | 河南省科学院能源研究所有限公司河南省生物质能源重点实验室,郑州,450008 |
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| 基金项目： | 基金项目：国家863项目子课题（2007AA052404） |
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| 摘 要： | 研究了利用玉米芯为原料制备D-木糖的试验条件.经过详细的实验条件考察,得知玉米芯中木聚糖水解为D-木糖的最佳水解条件:硫酸质量分数为2.5%,反应温度为110℃,玉米芯质量(g)和硫酸体积(mL)的比值即固液比为1∶8,反应时间为3 h.木聚糖的水解率达到97.89%.水解液经过石灰水中和、活性炭脱色、乙醇洗涤等过程的脱毒处理,纯度可以达到97.8%,木糖的提纯率为57.6%.
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| 关 键 词： | 玉米芯 水解 D-木糖 |
A Study on the Preparation of D-xylose from Corncob |
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| Ren Suxia
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Lei Tingzhou
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Zhu Jinling
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He Xiaofeng
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Xu Haiyan.A Study on the Preparation of D-xylose from Corncob[J].Henan Science,2012,30(1):51-54. |
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| Authors: | Ren Suxia Lei Tingzhou Zhu Jinling He Xiaofeng Xu Haiyan |
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| Institution: | (Energy Research Institute Co., Ltd, Henan Academy of Sciences, Key Biomass Energy Lab of Henan Province, Zhengzhou 450008, China) |
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| Abstract: | With the approaching of energy depletion, the use of renewable resources is significant. Corncob is an abundant agricultural byproduct. In the present paper, research on preparation of D-xylose from agricultural wastes is carried out. The optimum hydrolysis conditions of xylose in corncob to D-xylose are as follows： the concentration of H2SO4 is 2.5%, the temperature is 110 ℃, the ratio of corncob mass （g） to H2SO4 solution volume （mL） is 1：8 and the time is 3 h. The hydrolysis degree of xylan reaches 97.89%. High purity （97.8%） D-xylose is obtained from acid hydrolysis solution with the purification yield of 57.6%. |
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| Keywords: | corncob hydrolysis D-xylose |
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