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绿液预处理对毛竹化学成分及酶水解糖化的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2014年04期
Page:
118-122
Column:
研究论文
publishdate:
2014-07-01

Article Info:/Info

Title:
Effects of green liquor pretreatment on chemical composition and enzymatic hydrolysis of moso bamboo
Article ID:
1000-2006(2014)04-0118-05
Author(s):
MENG Xin TAN Xu ZHANG Quan JIN Yongcan*
Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
Keywords:
moso bambooo green liquor pretreatment lignin enzymatic hydrolysis efficiency of saccharification
Classification number :
TQ351
DOI:
10.3969/j.issn.1000-2006.2014.04.022
Document Code:
A
Abstract:
Moso bamboo is one of the abundant lignocellulosic biomass resources for the production of bioenergy. For improving the efficiency of enzymatic saccharification, the effects of green liquor(Na2CO3+Na2S)pretreatment on the chemical composition and the enzymatic hydrolysis of moso bamboo were investigated at different total titratable alkaline(TTA)and temperature. The results showed that the increasing of TTA charge and temperature resulted in degradation of polysaccharides increasing. The hydrolysis sugar yield went up with the increase of TTA charge and temperature in the pretreatment.Under optimized conditions(TTA charge 16%, sulfidity 25%, and temperature 160 ℃), the pretreated solid recovery was 68.3% with a lignin removal of 44.6%. The yields of glucan, xylan and total sugar of green liquor pretreated poplar in enzymatic hydrolysis were 64.9%, 48.0% and 58.1%, respectively at cellulase loading of 40 μmol/(min·g).

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Last Update: 2014-07-31