Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Decomposition Behavior of Hemicellulose and Lignin in the Step-Change Flow Rate Liquid Hot Water | |
Zhuang, Xinshu; Yu, Qiang; Wang, Wen; Qi, Wei; Wang, Qiong; Tan, Xuesong; Yuan, Zhenhong | |
2012-09-01 | |
发表期刊 | APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY |
卷号 | 168期号:1页码:206-218 |
摘要 | Hemicellulose and lignin are the main factors limiting accessibility of hydrolytic enzymes besides the crystallinity of cellulose. The decomposition behavior of hemicellulose and lignin in the step-change flow rate hot water system was investigated. Xylan removal increased from 64.53% for batch system (solid concentration 4.25% w/v, 18 min, 184A degrees C) to 83.78% at high flow rates of 30 ml/min for 8 min, and then 10 ml/min for 10 min. Most of them (80-90%) were recovered as oligosaccharide. It was hypothesized that the flowing water could enhance the mass transfer to improve the sugars recovery. In addition, the solubilization mechanism of lignin in the liquid hot water was proposed according to the results of Fourier transform-infrared spectroscopy and scanning electron microscopy of the water-insoluble fraction and gas chromatography-mass spectrometry of the water-soluble fraction. It was proposed that lignin in the liquid hot water first migrated out of the cell wall in the form of molten bodies, and then flushed out of the reactor. A small quantity of them was further degraded into monomeric products such as vanillin, syringe aldehyde, coniferyl aldehyde, ferulic acid, and p-hydroxy-cinnamic acid. All of these observations would provide important information for the downstream processing, such as purification and concentration of sugars and the enzymatic digestion of residual solid. |
文章类型 | Article |
关键词 | Decomposition Hemicellulose Lignin Step-change Flow Rate Liquid Hot Water (Scflhw) Sweet Sorghum Bagasse (Ssb) |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
DOI | 10.1007/s12010-011-9468-8 |
研究领域[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology |
关键词[WOS] | SWEET SORGHUM ; CORN STOVER ; COMPRESSED WATER ; HYDROLYSIS ; CELLULOSE ; DIGESTIBILITY ; ETHANOL ; ENHANCE ; SUGAR ; XYLAN |
收录类别 | SCI |
语种 | 英语 |
WOS类目 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology |
WOS记录号 | WOS:000309223700020 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/10154 |
专题 | 中国科学院广州能源研究所 |
作者单位 | Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhuang, Xinshu,Yu, Qiang,Wang, Wen,et al. Decomposition Behavior of Hemicellulose and Lignin in the Step-Change Flow Rate Liquid Hot Water[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2012,168(1):206-218. |
APA | Zhuang, Xinshu.,Yu, Qiang.,Wang, Wen.,Qi, Wei.,Wang, Qiong.,...&Yuan, Zhenhong.(2012).Decomposition Behavior of Hemicellulose and Lignin in the Step-Change Flow Rate Liquid Hot Water.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,168(1),206-218. |
MLA | Zhuang, Xinshu,et al."Decomposition Behavior of Hemicellulose and Lignin in the Step-Change Flow Rate Liquid Hot Water".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 168.1(2012):206-218. |
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