Continuous ethanol fermentation in molasses medium using Zymomonas mobilis immobilized in photo-crosslinkable resin gels |
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Institution: | 1. Department of Chemical Sciences, University of Naples Federico II, Napoli, Italy;2. Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy |
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Abstract: | Zymomonas mobilis B-69 147, an ethanol-producing bacterium, was immobilized in photo-crosslinkable resin gels to form a biocatalyst system. Continuous ethanol fermentation with this immobilized Zymomonas was carried out in molasses and compared to that with immobilized yeast. As a result of operating this process for two weeks, a productivity of 60 g/l·h based on immobilized gel was obtained with improvement in the poor tolerance to salts of Zymomonas. The productivity of immobilized Z. mobilis was superior to that of immobilized yeast. |
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