Biotechnology for Biofuels | |
Aliphatic extractive effects on acetic acid catalysis of typical agricultural residues to xylo-oligosaccharide and enzymatic hydrolyzability of cellulose | |
Junhua Zhang1  Yong Xu2  Kaixuan Huang2  Jianming Guo2  Rou Cao2  | |
[1] College of Forestry, Northwest A&F University, 3 Taicheng Road, Yangling, 712100, Shanxi, People’s Republic of China;Key Laboratory of Forestry Genetics & Biotechnology, Ministry of Education, College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, People’s Republic of China;Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, People’s Republic of China;Jiangsu Province Key Laboratory of Green Biomass-Based Fuels and Chemicals, 210037, Nanjing, People’s Republic of China; | |
关键词: Aliphatic extractives; Acetic acid acidolysis; Xylo-oligosaccharides; Enzymatic hydrolysis; Agricultural residues; | |
DOI : 10.1186/s13068-021-01952-8 | |
来源: Springer | |
【 摘 要 】
BackgroundXylo-oligosaccharide is the spotlight of functional sugar that improves the economic benefits of lignocellulose biorefinery. Acetic acid acidolysis technology provides a promising application for xylo-oligosaccharide commercial production, but it is restricted by the aliphatic (wax-like) compounds, which cover the outer and inner surfaces of plants.ResultsWe removed aliphatic compounds by extraction with two organic solvents. The benzene–ethanol extraction increased the yield of acidolyzed xylo-oligosaccharides of corncob, sugarcane bagasse, wheat straw, and poplar sawdust by 14.79, 21.05, 16.68, and 7.26% while ethanol extraction increased it by 11.88, 17.43, 1.26, and 13.64%, respectively.ConclusionThe single ethanol extraction was safer, more environmentally friendly, and more cost-effective than benzene–ethanol solvent. In short, organic solvent extraction provided a promising auxiliary method for the selective acidolysis of herbaceous xylan to xylo-oligosaccharides, while it had minimal impact on woody poplar.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202107031364000ZK.pdf | 1836KB | download |