Production of formate,acetate, and succinate by anaerobic fermentation of Lactobacillus pentosus in the presence of citrate |
| |
Authors: | Jörg Cselovszky Gudrun Wolf Walter P Hammes |
| |
Institution: | (1) Institut für Lebensmitteltechnologie, Universität Hohenheim, Garbenstrasse 25, W-7000 Stuttgart 70, Federal Republic of Germany |
| |
Abstract: | Summary The formation of acetate, formate and succinate was studied in Lactobacillus pentosus. These compounds were produced in addition to lactic acid when cells were exposed to anaerobic growth conditions with limited carbohydrates and in the presence of citrate. Citrate was metabolised via oxalacetate serving as an H-acceptor in a joint process together with lactate. The metabolism of citrate resulted in stoichiometric amounts of succinate and acetate. Lactate was degraded to formate and acetate in a reaction catalysed by pyruvate formate lyase. These fermentation products can potentially affect the flavour of fermented food but ecological factors in fermenting meat, e.g. the presence of glucose, nitrate or nitrite prevent this reaction.
Offprint requests to: G. Wolf |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|