Paper Title:
Detoxification of Wheat Straw Formic Acid Hydrolysis and Xylitol Production
  Abstract

Xylitol can be obtained from hemicelullosic fraction of lignocellulosic materials containing D-xylose. Formic acid hydrolysis is widely used in lignocellulose pretreatment. However, formic acid hydrolysis wheat straw cannot be directly used as fermentation subsequently owing to various fermentation inhibitors, especially the formic acid in reaction system and released during pretreatment. This study describes main hydrolysis components and inhibitors prepared by hydrolysis of wheat straw with formic acid solution, and different detoxification methods ware used to romve the inhibitors. Study found treatment of wheat straw hydrolysate with overliming treatment and D311 ion-exchange resin had a good result on reduction formic acid and other main inhibitors, results showed which can eliminate 94% of residual formic acid and with only 15% reducion of xylose. To verify the effectiveness of different detoxification methods, hydrolysates of detoxification werr fermented by Candida.tropicalis AS2.1776, and the results also found that the hydrolysate treatmented with overliming treatment and D311 ion-exchange resin have the hightest xylitol yield.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 21: Nontraditional Manufacturing
Edited by
Wu Fan
Pages
5453-5457
DOI
10.4028/www.scientific.net/AMR.383-390.5453
Citation
J. P. Zhuang, L. Lin, S. Yong, C. S. Pang, "Detoxification of Wheat Straw Formic Acid Hydrolysis and Xylitol Production", Advanced Materials Research, Vols. 383-390, pp. 5453-5457, 2012
Online since
November 2011
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Price
$32.00
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