The Alkaline-Ozonolysis Pretreatment and Simultaneous Saccharification and Fermentation (SSF) for the Production of Bioethanol from Rice Straw
| Main Authors: | Novia , Novia , Hermansyah, Hermansyah, Nurrahman, Arif |
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| Format: | Proceeding PeerReviewed application/pdf |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/4642/1/5._CECR%2D12%2DNovia.pdf http://eprints.unsri.ac.id/4642/ |
Daftar Isi:
- The utilization of rice straw to produce bioenergy such as bioethanol is one of the most strategies for overcoming fossil fuel crisis. The mixture between the highly purity bioethanol and gasoline (gasohol) leads the increasing of octan number. Rice straw contains cellulose which is the raw material of the second generation of bioethanol. In this research, the straw was pretreated with ozonolysis-alkaline pretreatment. The ozonolysis were carried out in fixed bed reactor after the alkaline pretreatment process. The particle size of biomass on the ozonolysis-alkaline pretreatment showed the significant effects on the degradation of lignin. Additionally, the ozonolysis-alkaline pretreatment experiments evidenced a degradation of lignin. The ethanol production from rice straw was investigated by using the simultaneous saccharification and fermentation (SSF) with cellulase enzyme from the aspergilus niger and Saccharomyces cerevisiae. The results showed that the highest ethanol concentration is about 110,97 mg/l which is obtained at the SSF time of 120 hours dan the yeast concentration of 20 mL.