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JSIR Vol.70 [2011] >
JSIR Vol.70(02) [February 2011] >
| Title: | Ethanol production with natural carbon sources in batch and continuousfermentation using free and immobilized Saccharomyces cerevisiae |
| Authors: | Shafaghat, Hoda
Najafpour, Ghasem D.
Rezaei, Pouya Sirous
Sharifzadeh-Baei, Mazyar |
| Keywords: | Ethanol production
Immobilized cells
Kinetic parameters
Molasses
Saccharomyces cerevisiae |
| Issue Date: | Feb-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents ethanol production from molasses, dates and sugarcane syrup with sugar concentration of 35g/l in batch culture. Molasses (retention time, 24 h; initial sugar concentration, 100 g/l) gave highest yield of ethanol [conc., 45.5 g/l (theoreticalyield 89%)] in a packed bed reactor loaded with immobilized Saccharomyces cerevisiae beads (mean diam, 3 mm). After 16 h of cultivation, free cells were harvested for immobilization. Entrapment method was used to encapsulate free cells using 2.5%sodium alginate solution, solidified in calcium chloride bath. Growth kinetic model for S. cerevisiae in batch culture and rate model for performance of immobilized cell reactor (ICR) were determined. |
| Page(s): | 162-169 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.70(02) [February 2011]
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