Ethanol production from native cassava starch by a mixed culture of Endomycopsis fibuligera and Zymomonas mobilis

✍ Scribed by C. González; O. Delgado; M. Baigorí; C. Abate; D. A. Callieri; L. I. C. De Figueroa

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 360 KB
• Volume: 18
• Category: Article
• ISSN: 0138-4988
• DOI: 10.1002/abio.370180211

✦ Synopsis

The conversion of starch from unhydrolyzed cassava flour to ethanol by a pure culture of Endomycopsis fibdigera and by a co-culture of this amylolytic yeast and the bacterium Zymmonas mobilis was studied.

The best overall results were obtained using the mixed culture. After 96 h of fermentation of a medium containing 150 g/l initial cassava starch, an ethanol concentration of 31.4 g/l, a productivity of 0.33 g ethanoyl x h and a yield of 0.21 g ethanoyg initial starch were reached. The highest yield (0.37 g/g) was obtained after 48 h when using a medium containing 50 g/l initial starch.