Abstract

Abstract The production of ethanol from carob pods extract by Saccharomyces cerevisiae in static and shake flask fermentation was investigated. Shake flask fermentation proved to be a better fermentation system for the production of ethanol than static fermentation. The external addition of nutrients into the carob pods extract did not improve the production of ethanol. The maximum concentration of ethanol (75 g/l) was obtained at an inoculum amount of 0.3%, a pH of 4.5, 30°C and an initial sugar concentration of 200 g/1. Under the same fermentation conditions both sterilized and non‐sterilized carob pods extract gave the same final ethanol concentration.

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