Enhanced Hydrolysis of Hemicellulose in Corn Stalk by Alkali Pretreatment
Enhanced Hydrolysis of Hemicellulose in Corn Stalk by Alkali Pretreatment
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碱预处理强化玉米秆半纤维素水解
DOI：
10.4028/www.scientific.net/amm.496-500.175
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发表时间：
2014-01
期刊：
影响因子：
--
通讯作者：
Shoujuan Wang
中科院分区：
文献类型：
--
作者：
Yanquan Guo;Wenbo Wang;Fangong Kong;Shoujuan Wang
采用碱水解法降解玉米秸秆中的半纤维素。研究了预处理过程中NaOH浓度、水解时间和水解温度对玉米秸秆半纤维素降解的影响。此外，还对玉米秸秆碱水解和还原糖的得率进行了探讨。实验结果表明，碱解过程对玉米秸秆中半纤维素的去除有积极的作用，整个过程在3 h内基本完成。用20%NaOH在90°C下预处理6 h，还原糖得率最高为7.2%，用15%NaOH在90°C下预处理3 h，还原糖得率最高为6.6%，略低于最高还原糖得率，但碱用量和水解时间大大减少。结果表明，最佳预处理条件为15%NaOH、90°C、3 h，该方法易于在碱法制浆中应用。
Alkali hydrolysis was used as a method of decomposing hemicellulose in corn stalk in this paper. The effects of NaOH concentration, hydrolysis time and hydrolysis temperature in the pretreatment on the degradation of hemicellulose in corn stalk were investigated. In addition, the yields of reducing-sugar and alkali hydrolysis corn stalk were discussed. The experimental results showed that the process of alkali hydrolysis had positive effect on the removal of hemicellulose in corn stalk and the whole process almost finished in 3h. The maximum reducing-sugar yield was 7.2% by the pretreatment with 20% NaOH for 6 h at 90°C, and 6.6% under the condition of 15% NaOH for 3h at 90°C, which was slightly lower than the maximum reducing-sugar yield, but the alkali charge and hydrolysis time dramatically reduced. So it was clarified that the best pretreatment condition was 15% NaOH for 3h at 90°C, and also this method is easy to applied in the alkaline pulping process.
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DOI：
--
发表时间：
2010
期刊：
Journal of Anhui Agricultural Sciences
影响因子：
--
作者：
Jiao Cui-ying
通讯作者：
Jiao Cui-ying
重组大肠杆菌高固体浓度汽爆玉米秆酶解及琥珀酸发酵
影响因子：
3
作者：
Wu, Dexi;Li, Qiang;Wang, Dan;Dong, Yugang
通讯作者：
Dong, Yugang
影响因子：
11.4
作者：
Silverstein, Rebecca A.;Chen, Ye;Osborne, Jason
通讯作者：
Osborne, Jason
综合湿磨和碱预处理增强玉米秸秆的酶解
影响因子：
3
作者：
He, Xun;Miao, Yelian;Ouyang, Pingkai
通讯作者：
Ouyang, Pingkai