• K K Meher

      Articles written in Journal of Biosciences

    • Isolation of propionate degrading bacterium in co-culture with a methanogen from a cattle dung biogas plant

      K K Meher D R Ranade

      More Details Abstract Fulltext PDF

      Various anaerobic hydrolytic and methanogenic bacteria active in cattle dung biogas plants are reported in the literature. Anaerobic bacteria with ability to use volatile fatty acids constitute a vital bridge between hydrolytic bacteria and methanogenic bacteria. The present paper describes the isolation ofSyntrophobacter wolinii a propionate degrading bacterium in co-culture with a hydrogen utilizing methanogenviz.,Methanobacterium formicicum from the fermenting slurry of cattle dung biogas plant. Earlier studies on propionate and butyrate degradation indicatedMethanospirillum hungatei as the hydrogen utilizing partner of the co-culture whereas in the present studies this was not the case. Temperature 35° C, pH 7.5 and 20 mM of propionate were found optimal for growth and activity of co-culture.

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