Integration of first and second generation biofuels: Fermentative hydrogen production from wheat grain and straw
| Autor: | Emmanuel G. Koukios, Pieternel A. M. Claassen, Robert R. Bakker, I.A. Panagiotopoulos, G.J. de Vrije |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
Bioengineering Thermoanaerobacter extreme thermophiles Hydrolysate thermotoga-neapolitana Bioenergy pulp Enzymatic hydrolysis Food science conversion Sugar Waste Management and Disposal Triticum biology biomass Renewable Energy Sustainability and the Environment Chemistry food and beverages General Medicine Straw Plant Components Aerial biology.organism_classification inhibition Systems Integration BBP Bioconversion Agronomy thermophiles caldicellulosiruptor-saccharolyticus Fermentative hydrogen production Biofuels Fermentation bioethanol production BBP Biorefinery & Sustainable Value Chains ethanol dilute-acid pretreatment Caldicellulosiruptor saccharolyticus Hydrogen |
| Zdroj: | Bioresource Technology, 128, 345-350 Bioresource Technology 128 (2013) |
| ISSN: | 0960-8524 |
| Popis: | Integrating of lignocellulose-based and starch-rich biomass-based hydrogen production was investigated by mixing wheat straw hydrolysate with a wheat grain hydrolysate for improved fermentation. Enzymatic pretreatment and hydrolysis of wheat grains led to a hydrolysate with a sugar concentration of 93.4 g/L, while dilute-acid pretreatment and enzymatic hydrolysis of wheat straw led to a hydrolysate with sugar concentration 23.0 g/L. Wheat grain hydrolysate was not suitable for hydrogen production by the extreme thermophilic bacterium Caldicellulosiruptor saccharolyticus at glucose concentrations of 10 g/L or higher, and wheat straw hydrolysate showed good fermentability at total sugar concentrations of up to 10 g/L. The mixed hydrolysates showed good fermentability at the highest tested sugar concentration of 20 g/L, with a hydrogen production of 82–97% of that of the control with pure sugars. Mixing wheat grain hydrolysate with wheat straw hydrolysate would be beneficial for fermentative hydrogen production in a biorefinery. |
| Databáze: | OpenAIRE |
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