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 (theoretical yield 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.
|Journal||Journal of Scientific and Industrial Research|
|Publication status||Published - Feb 2011|
|MoE publication type||A1 Journal article-refereed|
- Ethanol production
- Immobilized cells
- Kinetic parameters
- Saccharomyces cerevisiae