Effect of initial pH values on bio-ethanol production (g.L-1) by S. cerevisiae and C. kefyr using two kinds of molasses. (A) Sugarcane molasses (B) Sugar beet molasses Number followed by the same letter are not significantly different at P= 0.05 when compared by Duncan test. 

Effect of incubation temperature on bio-ethanol production (g.L-1) by S. cerevisiae and C. kefyr using two kinds of molasses. (A) Sugarcane molasses (B) Sugar beet molasses Number followed by the same letter are not significantly different at P= 0.05 when compared by Duncan test at P= 0.05 when compared by Duncan test. 

Effect of optimal conditions on bio-ethanol production by S. cerevisiae and C. kefyr using two kinds of molasses. Number followed by the same letter are not significantly different at P= 0.05 when compared by Duncan test.