ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL
This article reviews developments in the technology for ethanol produc-tion from lignocellulosic materials by “enzymatic” processes. Several methods of pretreatment of lignocelluloses are discussed, where the crystalline structure of lignocelluloses is opened up, making them more accessible to the c...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2007-11-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_2_4_707_738_Taherzadeh_Karimi_EnzymeBased_Hydrol_Ethanol_Review/81 |
| _version_ | 1818977816373362688 |
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| author | Keikhosro Karimi Mohammad J. Taherzadeh |
| author_facet | Keikhosro Karimi Mohammad J. Taherzadeh |
| author_sort | Keikhosro Karimi |
| collection | DOAJ |
| description | This article reviews developments in the technology for ethanol produc-tion from lignocellulosic materials by “enzymatic” processes. Several methods of pretreatment of lignocelluloses are discussed, where the crystalline structure of lignocelluloses is opened up, making them more accessible to the cellulase enzymes. The characteristics of these enzymes and important factors in enzymatic hydrolysis of the cellulose and hemicellulose to cellobiose, glucose, and other sugars are discussed. Different strategies are then described for enzymatic hydrolysis and fermentation, including separate enzymatic hydrolysis and fermentation (SHF), simultaneous saccharification and fermentation (SSF), non-isothermal simultaneous saccharification and fermentation (NSSF), simultaneous saccharification and co-fermentation (SSCF), and consolidated bioprocessing (CBP). Furthermore, the by-products in ethanol from lignocellulosic materials, wastewater treatment, commercial status, and energy production and integration are reviewed. |
| first_indexed | 2024-12-20T16:33:45Z |
| format | Article |
| id | doaj.art-7180da5379864c97ba1866328e9470dd |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-20T16:33:45Z |
| publishDate | 2007-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-7180da5379864c97ba1866328e9470dd2022-12-21T19:33:12ZengNorth Carolina State UniversityBioResources1930-21262007-11-0124707738ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOLKeikhosro KarimiMohammad J. TaherzadehThis article reviews developments in the technology for ethanol produc-tion from lignocellulosic materials by “enzymatic” processes. Several methods of pretreatment of lignocelluloses are discussed, where the crystalline structure of lignocelluloses is opened up, making them more accessible to the cellulase enzymes. The characteristics of these enzymes and important factors in enzymatic hydrolysis of the cellulose and hemicellulose to cellobiose, glucose, and other sugars are discussed. Different strategies are then described for enzymatic hydrolysis and fermentation, including separate enzymatic hydrolysis and fermentation (SHF), simultaneous saccharification and fermentation (SSF), non-isothermal simultaneous saccharification and fermentation (NSSF), simultaneous saccharification and co-fermentation (SSCF), and consolidated bioprocessing (CBP). Furthermore, the by-products in ethanol from lignocellulosic materials, wastewater treatment, commercial status, and energy production and integration are reviewed.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_2_4_707_738_Taherzadeh_Karimi_EnzymeBased_Hydrol_Ethanol_Review/81Lignocellulosic materialsEnzymatic hydrolysisEthanolFermentation |
| spellingShingle | Keikhosro Karimi Mohammad J. Taherzadeh ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL BioResources Lignocellulosic materials Enzymatic hydrolysis Ethanol Fermentation |
| title | ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL |
| title_full | ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL |
| title_fullStr | ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL |
| title_full_unstemmed | ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL |
| title_short | ENZYME-BASED HYDROLYSIS PROCESSES FOR ETHANOL |
| title_sort | enzyme based hydrolysis processes for ethanol |
| topic | Lignocellulosic materials Enzymatic hydrolysis Ethanol Fermentation |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_2_4_707_738_Taherzadeh_Karimi_EnzymeBased_Hydrol_Ethanol_Review/81 |
| work_keys_str_mv | AT keikhosrokarimi enzymebasedhydrolysisprocessesforethanol AT mohammadjtaherzadeh enzymebasedhydrolysisprocessesforethanol |