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Solid-state fermentation of carob pods for ethanol production

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Abstract

The production of ethanol from carob pods by Saccharomyces cerevisiae in solid-state fermentation was investigated. The maximal ethanol concentration (160±3 g/kg dry pods), ethanol productivity (6.7 ± 0.2 g/kg per hour), ethanol yield (40 ± 1.8%), biomass concentration (7.5 ± 0.4 x 108 cells/g carob pulp) and fermentation efficiency (80 ± 2%) were obtained at an inoculum amount of 3%, a particle size of 0.5 mm, a moisture level of 70%, a pH of 4.5 and a temperature of 30°C. Under the same fermentation conditions both sterilized and non-sterilized carob pods pulp gave the same maximum ethanol concentration.

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Roukas, T. Solid-state fermentation of carob pods for ethanol production. Appl Microbiol Biotechnol 41, 296–301 (1994). https://doi.org/10.1007/BF00221222

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  • DOI: https://doi.org/10.1007/BF00221222

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