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Influence of the flocculating agent in sedimentation and performance of a non flocculent strain of Zymomonas mobilis in the ethanol production process

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Bioseparation

Abstract

The influence of the flocculating agent was studied in the performance (measured by microbial growth and ethanol production) of a non flocculent strain of Zymomonas mobilis, as well as the potentiality of the sedimentation process in the separation of the biomass from the fermentation broth. Among the flocculating agents studied, it was verified that both tannin and the polyelectrolyte yielded good results with regard to cellular performance. However, with regard to sedimentation tannin is more adequate to be used in processes involving Zymomonas mobilis.

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Authors and Affiliations

  1. Programa de Engenharia Química, COPPE/Universidade Federal do Rio de Janeiro RJ, C.P. 68502, 21945-970, Rio de Janeiro, RJ, Brazil

    Flávia P. Puget, Marcos R.T. Halasz, Giulio Massarani & Tito L.M. Alves

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  1. Flávia P. Puget
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  2. Marcos R.T. Halasz
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  3. Giulio Massarani
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  4. Tito L.M. Alves
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Puget, F.P., Halasz, M.R., Massarani, G. et al. Influence of the flocculating agent in sedimentation and performance of a non flocculent strain of Zymomonas mobilis in the ethanol production process. Bioseparation 9, 119–124 (2000). https://doi.org/10.1023/A:1008140029482

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  • DOI: https://doi.org/10.1023/A:1008140029482

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