| Summary: | Astatisticalmodelwas developed in this study to describe bioethanol production through a batch fermentation process of sugarcane
molasses by locally isolated Saccharomyces cerevisiae Y-39. Response surface methodology RSM based on central composite face
centered design CCFD was employed to statistically evaluate and optimize the conditions for maximum bioethanol production
and study the significance and interaction of incubation period, initial pH, incubation temperature, and molasses concentration on
bioethanol yield.With the use of the developed quadraticmodel equation, amaximumethanol production of 255 g/L was obtained
in a batch fermentation process at optimum operating conditions of approximately 71 h, pH 5.6, 38∘C, molasses concentration
18%wt.%, and 100 rpm.
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