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Optimization of glucose production from corncob bymicrowave-assisted alkali pretreatment and acid hydrolysis |
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| รหัสดีโอไอ | |
| Creator | 1. Sininart Chongkhong 2. Chakrit Tongurai |
| Title | Optimization of glucose production from corncob bymicrowave-assisted alkali pretreatment and acid hydrolysis |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2018 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 3 |
| Page no. | 555 |
| Keyword | corncob, microwave, alkali pretreatment, acid hydrolysis, reducing sugar |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The production of reducing sugar is the most crucial process in the production of cellulosic ethanol and can be dividedinto two steps. First, pretreatment removes the unwanted constituents of lignocellulose to produce cellulose; then the cellulose ishydrolyzed to glucose (a reducing sugar) in the hydrolysis step. In this work, microwave heating was applied for both alkalipretreatment and sequential acid hydrolysis of corncob in which the conditions were optimized by response surface methodology.The optimal cellulose content in the pretreated corncob was 52.9 % w/w obtained with 1 M sodium hydroxide using a 1:12weight ratio of corncob to solution at 900 W microwave power for 20 min, which was used to optimize the glucose yield in thefollowing step. The highest yield of 14.8% glucose was achieved with 1.3% w/w sulfuric acid solution at 900 W for 16 min. |
