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Overproduction and secretion of α-ketoglutaric acid by microorganisms

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Abstract

This mini-review presents a summary of research results of biotechnological production of alpha-ketoglutaric acid (KGA) by bacteria and yeasts. KGA is of particular industrial interest due to its broad application scope, e.g., as building block chemical for the chemical synthesis of heterocycles, dietary supplement, component of infusion solutions and wound healing compounds, or as main component of new elastomers with a wide range of interesting mechanical and chemical properties. Currently KGA is produced via different chemical pathways, which have a lot of disadvantages. As an alternative several bacteria and yeasts have already been studied for their ability to produce KGA as well as for conditions of overproduction and secretion of this intermediate of the tricarboxylic acid cycle. The aim of this mini-review was to summarize the known data and to discuss the potentials of biotechnological processes of KGA production.

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Correspondence to Christina Otto or Gerold Barth.

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Otto, C., Yovkova, V. & Barth, G. Overproduction and secretion of α-ketoglutaric acid by microorganisms. Appl Microbiol Biotechnol 92, 689–695 (2011). https://doi.org/10.1007/s00253-011-3597-4

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