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|Título:||Bioethanol production from agricultural wastes|
|Autor:||Duarte, José Cardoso|
Sàágua, M. C.
Paixão, Susana M.
|Citação:||Duarte, José Cardoso; Sàágua, M. C.; Baeta-Hall, Lina; Correia, Anabela; Ribeiro, Belina; Lourenço, V.; Pereira, J.; Paixão, Susana M. Bioethanol production from agricultural wastes. Comunicação apresentada ao ECOMONDO: 13th International Trade Fair of Material & Energy Recovery and Sustainability, Rimini Italy, October 28-31, 2009|
|Resumo:||In this study, different strains of Saccharomyces cerevisiae have been screened for the ability of bioethanol production. Yeasts were grown in synthetic liquid medium containing two different substrates: sucrose at different concentrations (10 to 400g/l) and cane molasses (120g/l of sucrose). The screening was made in batch regime and the growth rates, ethanol and biomass productions were determined. The results indicate a flocculent yeast strain – F as the more suitable microorganism to produce ethanol, presenting the highest value of growth rate (0.49h-1) and ethanol yield (0.40g/g) with 120g/l of sucrose concentration. In addition, ethanol production was also studied in a continuous process with the selected yeast strain (F strain), with sucrose and cane molasses (120g/l) at different dilution rates (0.05-0.5 h-1). Data showed that when dilution rate raised to 0.4h-1 the highest sugar conversion, 85% and 90%, were achieved with an ethanol production of 40.5g/l and 50.8g/l for sucrose and molasses, respectively.|
|Aparece nas colecções:||UB - Comunicações em actas de encontros científicos internacionais|
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|Ecomondo Proceeding 2009 - Duarte et al.pdf||90,34 kB||Adobe PDF||Ver/Abrir|
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