OPTIMISATION OF BIOETHANOL PRODUCTION FROM POTATO PEELS USING TAGUCHI DESIGN

ABSTRACT

Bioethanol has been produced from potato peels by submerged fermentation process and by the optimisation of the production parameters of pH, enzyme loading (g/L), hydrolysis time (hr) and incubation period (days) using the Taguchi design coupled with Response Surface Methodology. The highest bioethanol yield obtained was 2.55% at the conditions of pH of 6, enzyme loading of 0.75%, hydrolysis time of 48hr and incubation period of 5 days. The main effect model was selected for the ANOVA with the R-square, predicted R-square and adjusted R-square value of 0.9474, 0.9211 and 0.8580 respectively. The ANOVA results showed that all the experimental parameters were highly significant in bioethanol yield