Ethanol Production from Gmelina arborea Wood Wastes by Saccharomyces cerevisiae using Submerged Fermentation

Lignocellulose wastes are the most abundant residues on surface of earth. This project studies possibility ethanol production from a forestry waste. Wood Gmelina arborea were treated with dillute sulfuric acid to break down lignin component. Fermentation for was done using baker’s yeast (Saccharomyces cerevisiae ATCC 204508/S288c) 120 hours submerged fermentation, and pH, reducing sugar, specific gravity content determined standard techniques. Ethanol concentration yield measured via vinometer curve From results, highest pH obtained at 72 fermentation period. The sugar decreased over time . acid-pretreated wood gave maximum 3.84 % 7.60 ml/g as methods 96 respectively. About 13.6% v/v recovered distillation process employed separate components product generated after fermentation. observations in this research reveal producing G. under optimized culture conditions. could serve an alternate means biofuel generation hence value addition wastes.
 Keywords: arborea, Saccharomyces cerevisiae, Ethanol, Submerged