| |
Issue No:7, Vol.3 |
July - 2010 |
ISSN: 0974-5645 |
| RESEARCH ARTICLES |
Viewers & PDF |
| 6. Ethanol production from potato flour by Saccharomyces cerevisiae. P. Rani, S. Sharma, F.C. Garg, Kushal Raj and Leela Wati. Indian J.Sci.Technol. Vol. 3, Issue 7, pp: 733-736. Domain site: http://www.indjst.org. |
 
|
- Abstract
Flour prepared from potato tubers (Solanum tuberosum) after cooking and drying at 70°C was used for ethanol
production. Homogenous slurry of potato flour was prepared in water at solid liquid ratio 1:4. Liquefaction of potato flour
slurry with α-amylase (2.05 DUN U/g starch) at 80°C for 30 min followed by saccharification with glucoamylase (20.5
GA U/g starch) at 60°C for 2 h generated 15.2% total reducing sugars in the hydrolysate. Fermentation of hydrolysate
with Saccharomyces cerevisiae HAU-1 at 30°C for 48 h resulted in production of 56.8 gl-1 ethanol. Supplementation of
nitrogen sources to potato flour did not contribute significantly to ethanol yield. Simultaneous saccharification and
fermentation of hydrolysate was as effective as separate hydrolysis and fermentation.
- Keywords: Ethanol, fermentation, liquefaction, potato flour, saccharification, S. cerevisiae.
|
| |
|
|
|
