中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 105-106.

• 研究论文 • 上一篇    下一篇

电膜法生产木糖醇工艺

黄玉秀   

  1. 华南理工大学应用化学系, 广州 510641
  • 收稿日期:1996-09-10 修回日期:1997-01-23 出版日期:1997-06-10 发布日期:1997-06-10

Production of Xylitol by Electrical Reduction of Xylose

Huang Yuxiu   

  1. Department of Applied Chemistry, South China University of Science and Technology, Guangzhou 510641
  • Received:1996-09-10 Revised:1997-01-23 Published:1997-06-10 Online:1997-06-10

PDF

476

被引次数

1

摘要： 目前生产木糖醇都用高压加氢法[1, 2]. 此法工艺流程长, 对设备要求高, 生产不安全. 应用电膜法生产木糖醇, 至今未见报道. 本文将甘蔗渣或玉米芯酸水解后得到的木糖水解液, 加Na2SO4 后使链状木糖电还原为木糖醇。

关键词: 木糖, 木糖醇, 制备, 电还原法

Abstract: The cane drosses or corncobs were hydrolytically decomposed to xylose liquid of concentration 50%, which was then electrolytically reduced on the film with current density 5 A/m2 and 25～30 V(dc)in Na2SO4 solution of pH=7. Over 95% xylose were reduced to xylitol. Yield over 8.6%, purity 98 5%.

Key words: xylan, xylitol, preparation, electric reduction

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