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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zeng, Jing Qi, Feng Zhao, Xuebing Liu, Dehua Morikawa, Yuichi |
| Description | Author Affiliation: Zhao X ( Institute of Applied Chemistry, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. Electronic address: zhaoxb@mail.tsinghua.edu.cn.) |
| Abstract | Acetic acid (AcH) pretreatment of sugarcane bagasse with the catalysis of sulfuric acid (SA) could greatly enhance the enzymatic digestibility of cellulose. However, polysaccharide dissolution happened inevitably during the pretreatment. It was found that the simplest model, which assumes that the total polysaccharides were reactive to be dissolved, could not well describe the kinetic behavior of polysaccharide dissolution. A novel pseudo-homogenous kinetic model was thus developed by introducing a parameter termed as 'potential dissolution degree' (δ(d)) based on the multilayered structure of cell wall. It was found that solid xylan and glucan dissolutions were a first-order reaction with respect to the dissolvable fraction. Due to the delignification action of AcH, polysaccharide dissolutions were enhanced in AcH media compared with those in aqueous system. Acetylizations of cellulose and sugars were also observed, and AcH concentration showed a significant influence on the degree of acetylization. |
| ISSN | 09608524 |
| Volume Number | 151 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-01-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Acetic Acid Pharmacology Atmosphere Chemistry Cellulose Models, Biological Polysaccharides Saccharum Drug Effects Cell Wall Metabolism Glucans Hydrolysis Kinetics Multivariate Analysis Regression Analysis Sulfuric Acids Xylans Xylose Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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