Optimization of Ethanol Production from Palmyra Sap by Zymomonas mobilis using Response Surface Methodology (RSM)

2011 Microbiology Indonesia  
Zymomonas mobilis Zymomonas mobilis response surface methodology Box-Wilson central composite design Zymomonas mobilis Zymomonas mobilis response surface methodology Ethanol is believed to be one of the best alternatives to replace gasoline, because ethanol is a renewable energy source and environmentally friendly. The present study focuses on the optimization of palmyra sap as a source for ethanol production. Statistical experimental design using Box-Wilson central composite design was used to
more » ... design was used to optimize the quantitative effects of sugar, urea, and inoculum concentration on ethanol production. It was found that palmyra sap could be used as a substrate for ethanol production using (NRRL B-14234). A maximum ethanol concentration of 58.97 g L was obtained after optimizing the parameters of fermentation. The optimum values of sugar urea, and inoculums concentration were 206.01 g L , 3.16 g L , and 23.05% (v v ), respectively, with ethanol yield of 0.3039 g g . A high similarity was observed between the predicted and experimental results, which reflected the accuracy and applicability of RSM to optimize the process for ethanol production.
doi:10.5454/mi.5.2.3 fatcat:v7sosvgz2zaf3clcjxncmoq24u