Amino Acid Fermentation: Coenzyme B12-Dependent and -Independent Pathways
The fermentation of amino acids to ammonia, carbon dioxide, and short-chain fatty acids is an important step in the mineralization of proteins in soil, sewage sludge, and marine and fresh water sediments. In addition, amino acids are anaerobically degraded in the intestine and in other parts of humans and animals which are badly supplied with oxygen. The majority of the organisms which are involved in these fermentations are Clostridia and other gram-positive bacteria. Only a few representatives are found among the Proteobacteria and in the Bacteroides group (for reviews see Barker 1961, 1981).
KeywordsPyridoxal Phosphate Acetyl Phosphate Clostridium Sporogenes Fresh Water Sediment Amino Acid Fermentation
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