Sequential Mixed Cultures: From Syngas to Malic Acid
نویسندگان
چکیده
منابع مشابه
Sequential Mixed Cultures: From Syngas to Malic Acid
Synthesis gas (syngas) fermentation using acetogenic bacteria is an approach for production of bulk chemicals like acetate, ethanol, butanol, or 2,3-butandiol avoiding the fuel vs. food debate by using carbon monoxide, carbon dioxide, and hydrogen from gasification of biomass or industrial waste gases. Suffering from energetic limitations, yields of C4-molecules produced by syngas fermentation ...
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Evidence indicated an accumulation of l-malic acid in the synthetic growth medium of both lysine auxotrophs and wild-type yeast. Malic acid was isolated from growth experiments and was identified by paper and column chromatography, by comparison of infrared spectra with authentic l-malic acid, as well as enzymatically, as a substrate of malic dehydrogenase. Malic acid was accumulated when gluco...
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Mixed rumen micro-organisms, maintained in continuous culture readily incorporated labelled HCO3- and acetate into amino acids. Labelled propionate, in contrast, was utilized only for isoleucine biosynthesis, but failed to label other amino acids to any significant extent. Evidence was obtained showing that in these mixed, i.e. symbiotic, cultures foward tricarboxylic acid-cycle reactions only ...
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BACKGROUND The large surplus of crude glycerol, as main low-value waste stream in biodiesel production, has led to the investigation of new possibilities for the production of value-added chemicals from this feedstock. New and efficient (bio-) catalysts are needed that are able to convert glycerol to versatile chemical building blocks. This would contribute to further develop away from a mainly...
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ژورنال
عنوان ژورنال: Frontiers in Microbiology
سال: 2016
ISSN: 1664-302X
DOI: 10.3389/fmicb.2016.00891