In Situ Chemical Locking of Acetates During Xylo-Oligosaccharide Preparation by Lignocellulose Acidolysis
文献类型： 外文期刊
作者： Guo, Jianming 1 ; Zhao, Jianglin 1 ; Nawaz, Ali 4 ; Haq, Ikram ul 4 ; Chang, Wenhuan 5 ; Xu, Yong 1 ;
作者机构： 1.Nanjing Forestry Univ, Minist Educ, Key Lab Forestry Genet & Biotechnol, Nanjing 210037, Peoples R China
2.Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, 159 Longpan Rd, Nanjing 210037, Peoples R China
3.Jiangsu Prov Key Lab Green Biomass Based Fuels &, Nanjing 210037, Peoples R China
4.Govt Coll Univ, Inst Ind Biotechnol, Lahore 54000, Pakistan
5.Chinese Acad Agr Sci, Feed Res Inst, Minist Agr, Key Lab Feed Biotechnol, Beijing 100081, Peoples R China
关键词： Xylo-oligosaccharides; Chemical locking; Acetic acid acidolysis; Neutralizer; Lignocellulosic biomass
期刊名称：APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY （ 影响因子：2.277； 五年影响因子：2.135 ）
ISSN： 0273-2289
年卷期：
页码：
收录情况： SCI
摘要： Xylo-oligosaccharides with high value could be obtained by acidolysis of lignocellulosic biomass with acetic acid, which was an urgent problem to solve for the separation of acetic acid from crude xylo-oligosaccharides solution. Four neutralizers, CaCO3, CaO, Na2CO3, and NaOH, were used for in situ chemically locking the acetic acid in the acidolyzed hydrolysate of corncob. The chemically locked hydrolysate was analyzed and compared using vacuum evaporation and spray drying. After CaCO3, CaO, Na2CO3, and NaOH treatment, the locking rates of acetic acid were 92.62%, 94.89%, 95.05%, and 95.58%, respectively, and 39.55 g, 41.13 g, 41.78 g, and 41.87 g of the compound of xylo-oligosaccharide and acetate were obtained. Sodium neutralizer had lesser effect on xylo-oligosaccharide content, and Na2CO3 was the best chemical for locking acetic acid among these four neutralizers. This process provides a novel method for effectively utilizing acetic acid during the industrial production of xylo-oligosaccharides via acetic acid.
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