Evaluation of spent mushroom compost as a lignocellulosic substrate for hydrogen production by Clostridium thermocellum
| Autor: | Huan-Na Lin, Ming-Jun Zhu, Yu-Tao Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Mushroom
biology Renewable Energy Sustainability and the Environment Chemistry 020209 energy 05 social sciences Energy Engineering and Power Technology 02 engineering and technology Biodegradation musculoskeletal system Condensed Matter Physics biology.organism_classification Pulp and paper industry Fuel Technology 0502 economics and business cardiovascular system 0202 electrical engineering electronic engineering information engineering Clostridium thermocellum Spent mushroom compost Fermentation Biohydrogen 050207 economics Bioprocess tissues Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 42:26687-26694 |
| ISSN: | 0360-3199 |
| Popis: | Spent mushroom compost (SMC), waste cultivation medium of mushroom, is a potential lignocellulosic substrate. The characteristics of Clostridium thermocellum growing on SMC were investigated to provide practical guidance for better utilizing the SMC. SMC could be utilized without any pretreatment by C. thermocellum, and grinding, washing and mild chemical pretreatment could improve the fermentation performance of SMC, and consequently improved the hydrogen production. Grinding, washing and NaOH pretreatment increased hydrogen production by 48.48%, 62.09% and 2.61 times, respectively. Compared with washing method, neutralizing the alkali pretreated SMC with waste acid had no significant effect on hydrogen production, while could save a lot of water. Besides, fermentation without sterilization and medium simplification were feasible for the fermentation of SMC. The present study shows that SMC is a feasible substrate for consolidated bioprocessing, but pretreatments are needed to degrade the SMC more effectively. |
| Databáze: | OpenAIRE |
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