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Content Provider | World Health Organization (WHO)-Global Index Medicus |
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Author | Gonçalves, Luciana Rocha Barros da Costa, Jessyca Aline Marques, José Edvan Rocha, Maria Valderez Ponte |
Description | Country affiliation: Brazil Author Affiliation: da Costa JA ( Universidade Federal do Ceará, Departamento de Engenharia Química, Campus do Pici, Bloco 709, 60455-760 Fortaleza, CE, Brazil.); Marques JE ( Universidade Federal do Ceará, Departamento de Engenharia Química, Campus do Pici, Bloco 709, 60455-760 Fortaleza, CE, Brazil.); Gonçalves LR ( Universidade Federal do Ceará, Departamento de Engenharia Química, Campus do Pici, Bloco 709, 60455-760 Fortaleza, CE, Brazil.); Rocha MV ( Universidade Federal do Ceará, Departamento de Engenharia Química, Campus do Pici, Bloco 709, 60455-760 Fortaleza, CE, Brazil. Electronic address: valderez.rocha@ufc.br.) |
Abstract | The effect of combinations and ratios between different enzymes has been investigated in order to assess the optimal conditions for hydrolysis of cashew apple bagasse pretreated with alkaline hydrogen peroxide (the solids named CAB-AHP). The separate hydrolysis and fermentation (SHF) and simultaneous saccharification and fermentation (SSF) processes were evaluated in the ethanol production. The enzymatic hydrolysis conducted with cellulase complex and ß-glucosidase in a ratio of 0.61:0.39, enzyme loading of 30FPU/g(CAB-AHP) and 66CBU/g(CAB-AHP), respectively, using 4% cellulose from CAB-AHP, turned out to be the most effective conditions, with glucose and xylose yields of 511.68 mg/g(CAB-AHP) and 237.8 mg/g(CAB-AHP), respectively. Fermentation of the pure hydrolysate by Kluyveromyces marxianus ATCC 36907 led to an ethanol yield of 61.8kg/ton(CAB), corresponding to 15 g/L ethanol and productivity of 3.75 g/( Lh). The ethanol production obtained for SSF process using K. marxianus ATCC 36907 was 18 g/L corresponding to 80% yield and 74.2kg/ton(CAB). |
ISSN | 09608524 |
Volume Number | 179 |
e-ISSN | 18732976 |
Journal | Bioresource Technology |
Language | English |
Publisher | Elsevier |
Publisher Date | 2015-03-01 |
Publisher Place | Great Britain (UK) |
Access Restriction | Subscribed |
Subject Keyword | Alkalies Pharmacology Anacardium Chemistry Cellulase Metabolism Cellulose Ethanol Hydrogen Peroxide Beta-glucosidase Carbohydrate Metabolism Drug Effects Analysis Enzyme Assays Fermentation Glucose Hydrolysis Time Factors Xylose Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
Content Type | Text |
Resource Type | Article |
Subject Domain (in MeSH) | Eukaryota Inorganic Chemicals Organic Chemicals Macromolecular Substances Enzymes and Coenzymes Carbohydrates Investigative Techniques Physical Phenomena Chemical Phenomena |
Subject | Bioengineering Renewable Energy, Sustainability and the Environment Waste Management and Disposal Environmental Engineering Medicine |
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