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| Study of the Adsorption of Cellulase on Lignin |
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| DOI：10.11981/j.issn.1000-6842.2016.04.25 |
| Key Words:lignin； cellulase； adsorption； maximum adsorption capacity |
| Fund Project:国家自然科学基金(31500496)；制浆造纸科学与技术教育部重点实验室开放基金(KF-201409)。 |
| Author Name | Affiliation | | 姚 兰1,2 | 1.湖北工业大学制浆造纸工程学院,湖北武汉,430068；2.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 | | 周晓明1 | 1.湖北工业大学制浆造纸工程学院,湖北武汉,430068 | | 田 彦1 | 1.湖北工业大学制浆造纸工程学院,湖北武汉,430068 | | 杨海涛1,* | 1.湖北工业大学制浆造纸工程学院,湖北武汉,430068 |
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| Abstract: |
| In the process of bioethanol production, adsorption of cellulase on lignin results in the high cost. In this paper, adsorption of cellulose on lignins from three different sources was studied and compared with the adsorption of cellulose on microcrystalline cellulose. FT-IR analysis showed that milled wood lignins from poplar, gingko and corn stover belonged to GS, G and GSH type, respectively. The results of adsorption of cellulase on lignin showed that the adsorption capacity was expressed as follows: gingko lignin > corn stover lignin > poplar lignin > microcrystalline cellulose. Enzyme activity measurement demonstrated a prominent absorption of endoglucanase and β-glucosidase on lignins. |
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