 Ethanol production by solid-state saccharification and fermentation in a packed-bed bioreactorNicholas I. Canabarro, Cláudia Alessio, Edson L. Foletto, Raquel C. Kuhn, Wagner L. Priamo and Marcio A. Mazutti Renewable Energy, 2017, vol. 102, issue PA, 9-14 Abstract: In this work was presented a sequential strategy to optimize and scale-up the production of ethanol by solid-state saccharification and fermentation using rice bran as substrate. In the first step, fermentation was carried out in Erlenmeyers to study the influence of eight variables by means of a Plackett Burman design. After the choice of most significant ones, a central composite rotational design (CCRD) for three independent variables (rice bran concentration, moisture content and inoculum size) was conceived to optimize the ethanol production in a packed-bed bioreactor. From Erlenmeyers to packed bed bioreactor the process was scaled-up 10 times. Maximum ethanol production in the packed-bed bioreactor was 135 ± 10.8 g kg−1 at inoculum size, rice bran concentration and moisture content of 10% v/v, 62.5% w/w and 65% w/w, respectively. The ethanol yield obtained in the packed-bed bioreactor was similar to that in the erlenmeyers flasks (138.7 g kg−1), validating the strategy adopted for optimization and scale-up. Keywords: Rice processing residue; Solid-state saccharification and fermentation; Second generation ethanol (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:102:y:2017:i:pa:p:9-14 DOI: 10.1016/j.renene.2016.10.026 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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