Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| CaO/MgO复合固体碱预处理杂交狼尾草提高酶解率 | |
| Alternative Title | THE PRETREATMENT OF PENNISETUM HYBRID BY USING COMPOSITE SOLID BASE-CaO/MgO TO ENHANCE ENZYMATIC DIGESTIBILITY |
赵月1,2; 谭雪松1 ; 亓伟1; 王琼1; 庄新姝1; 袁振宏1
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| 2017-05 | |
| Source Publication | 太阳能学报
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| ISSN | 0254-0096 |
| Volume | 38Issue:5Pages:1447-1452 |
| Abstract | 以杂交狼尾草为原料，采用CaO/MgO复合固体碱为催化剂，通过水相环境下高温处理，研究反应条件对狼尾草酶解效率及总糖收率的影响。研究结果表明：在催化剂含量20%，温度110℃，时间80min，固液比1：20的条件下预处理狼尾草，木质素去除率高达54.18%。加酶量为40FPU/g，酶解72h，葡聚糖收率从未处理时的41.23%增大到81.04%；CaO/MgO固体碱预处理可破坏杂交狼尾草原本的致密结构，暴露更多的纤维素，破坏纤维素中的分子内和分子间的化学基团。CaO/MgO固体碱循环使用4次后无明显失活。 |
| Other Abstract | The effects of the reaction conditions on enzymatic digestibility and total sugar yield of Pennisetum hybrid pretreated in high temperature aqueous environment with composite solid alkali-CaO/MgO as the catalyst are investigated in this paper. The results indicated that 20% catalyst content, 110 ℃, 80 min and 1 : 20 ratio of solid are the optimal pretreatment conditions, whose lignin removal rate is up to 54.18%. When the enzyme loading is 40 FPU/g, 72 h enzymatic digestibility increases from 41.23% to 81.04%, substrates can be fully hydrolyzed. After pretreatment, the compact structure is damaged, more fibers expose, the chemical groups are destroyed like hydrogen bond in molecular. The catalysts CaO/MgO can be recovered and regenerated. |
| Keyword | 固体碱 酶解 杂交狼尾草 预处理 solid base enzymolysis Pennisetum hybrid pretreatment |
| Language | 中文 |
| CSCD ID | CSCD:6068039 |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/16519 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | 庄新姝 |
| Affiliation | 1.中国科学院广州能源研究所，中国科学院可再生能源重点实验室，广州510640; 2.中国科学院大学，北京100049 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 赵月,谭雪松,亓伟,等. CaO/MgO复合固体碱预处理杂交狼尾草提高酶解率[J]. 太阳能学报,2017,38(5):1447-1452. |
| APA | 赵月,谭雪松,亓伟,王琼,庄新姝,&袁振宏.(2017).CaO/MgO复合固体碱预处理杂交狼尾草提高酶解率.太阳能学报,38(5),1447-1452. |
| MLA | 赵月,et al."CaO/MgO复合固体碱预处理杂交狼尾草提高酶解率".太阳能学报 38.5(2017):1447-1452. |
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| CaO_MgO复合固体碱预处理杂交狼尾草（1630KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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