Optimization of Anaerobic Fermentation Conditions for Bioethanol Production from Banana (Ngombe) Peels using Yeast in a Still Reactor (original) (raw)

2014

Abstract

Limited information on optimal biofuel production conditions leads to non-economical and inefficient process hence uncompetitive low grade biofuels. Fermentation process optimization is very crucial especially while using relatively low fermentable sugars substrates. In this research, banana peels derived from Ngombe cultivar were dried, ground into fine powder to pass through a 1 mm screen, and then hydrolyzed using 60% concentrated H 2 SO 4 at 50 o C. Bioethanol was produced by anaerobic fermentation of the hydrolysate using Saccharomyces cerevisiae. Erlenmeyer Flasks fitted with non-return air valves were used as laboratory scale still reactors. Fermentation systems were subjected to various conditions based on half factorial Central Composite Rotatable Design (CCRD). Total Reducing Sugars (TRS) concentrations and bioethanol yield analyses were done by Dubois and Gas Chromatography methods respectively. Optimum bioethanol yield of 13.09ml/L was obtained at 180 g/L substrate conce...

Zachary Siagi hasn't uploaded this paper.

Let Zachary know you want this paper to be uploaded.

Ask for this paper to be uploaded.