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Propionate acts as earboxylic group acceptor in aspartate fermentation by ropionibacterium freudenreichii

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Propionate_acts_as_earboxylic_group1990.pdf
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1990

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Rosner, Bettina M.

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Published

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Archives of Microbiology. 1990, 155(1), pp. 46-51. ISSN 0302-8933. eISSN 1432-072X

Zusammenfassung

Cells of Propionibacterium freudenreichii ssp. shermanii and ssp. freudenreichii did not show significant growth or product formation in a mineral medium with 10 mM aspartate or 10 mM fumarate, vitamins, and a small amount (0.05% w/v) of yeast extract. In the presence of added propionate, growth with aspartate or fumarate was possible, and depended strictly on the amount of propionate provided, according to the equation: 3 aspartate + propionate ~ 3 succinate + acetate + CO2 + 3 NH3. Cocultures of P.freudenreichii with the succinate-decarboxylating strain Ft2 converted 3 aspartate stoichiometrically to acetate and 2 propionate. High activity of methylmalonyl-CoA: pyruvate transcarboxylase, and lack of methylmalonyl-CoA decarboxylase and oxaloacetate decarboxylase activity in cell-free extracts of aspartate-grown cells indicated that failure to use aspartate as sole substrate was due to the inability of these strains to catalyze a net decarboxylation of C4- dicarboxylic acids.

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Fachgebiet (DDC)
570 Biowissenschaften, Biologie

Schlagwörter

Aspartate fermentation, Transcarboxylase, Decarboxylases, Anaerobic cocultures, Propionate fermentation, Succinate fermentation

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ISO 690ROSNER, Bettina M., Bernhard SCHINK, 1990. Propionate acts as earboxylic group acceptor in aspartate fermentation by ropionibacterium freudenreichii. In: Archives of Microbiology. 1990, 155(1), pp. 46-51. ISSN 0302-8933. eISSN 1432-072X
BibTex
@article{Rosner1990Propi-7341,
  year={1990},
  title={Propionate acts as earboxylic group acceptor in aspartate fermentation by ropionibacterium freudenreichii},
  number={1},
  volume={155},
  issn={0302-8933},
  journal={Archives of Microbiology},
  pages={46--51},
  author={Rosner, Bettina M. and Schink, Bernhard}
}
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