Production of Ethanol from Immobilized Saccharomyces cerevisiae
Keywords:
ethanol, immobilization, Saccharomyces cerevisiae, Sodium alginate, fermentationAbstract
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic chemical compound S. cerevisiae is the most employed yeast for ethanol production at the industrial level though ethanol is produced by an array of other yeasts, bacteria, and fungi. This paper reviews the current and nonmolecular trends in ethanol production using S. cerevisiae. Ethanol has been produced from a wide range of substrates such as molasses, starch-based substrate, sweet sorghum cane extract, lignocellulose, and other wastes The study was carried out on ethanol production from Immobilized Saccharomyces cerevisiae The immobilization was done with calcium chloride and sodium alginate the beads were formed. Fermentation was carried out for 7 to 8 days at 28°C then distillation was done and final ethanol produce was checked with an alcohol meter and ethanol produce was 13% from immobilized Saccharomyces cerevisiae. The process parameters optimized were substrate conc, pH, and urea conc. The values of the process parameters are 30% substrate conc, pH 4.5, and urea conc 0.5%.
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