Ethanol production from corn cobs by co-culture of Saccharomyces cerevisiae and Aspergillus niger

Autor: Ado, SA, Kachalla, GU, Tijjani, MB, Aliyu, MS
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Bayero Journal of Pure and Applied Sciences; Vol 2, No 2 (2009); 99-101
ISSN: 2006-6996
Popis: Saccharomyces cerevisiae and Aspergillus niger were used in a co-culture for the simultaneous saccharification and fermentation (SSF) of 1% and 10% (w/v) dry pre-treated corn cobs to ethanol. Positive controls of glucose of same concentrations in a synthetic medium were also fermented. At 1% substrate concentration, the complex medium containing corn cobs had a maximum ethanol yield of 4.17%, while the synthetic medium with glucose gave 3.45%. At a higher concentration of 10% the synthetic medium gave a yield of 6.23% which is comparable to 6.17% by the complex medium. Residual sugar concentration was observed to decrease with increase in ethanol production and cell growth increased with time of fermentation. Keywords: Saccharomyces cerevisiae, Aspergillus niger, corn cobs, glucose, ethanol.
Databáze: OpenAIRE