Abstract
Propionibacterium acidipropionici was grown in a fed-batch culture, fed with glucose or lactate, or mixtures of lactate and glucose. Lactate and glucose were always simultaneously consumed. As co-substrate, glucose modified the propionate:acetate molar ratio (P/A) and increased the fraction of carbon used for biomass production. A P/A of 7.63 was obtained with a lactate:glucose molar ratio of 4; a P/A value of 1.34 was obtained with lactate alone and 1.85 with glucose alone. The fraction of carbon recovered in biomass was 0.09 for glucose, 0.12 for lactate, and 0.21 for a lactate:glucose molar ratio of 4.
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Martínez-Campos, R., de la Torre, M. Production of propionate by fed-batch fermentation of Propionibacterium acidipropionici using mixed feed of lactate and glucose. Biotechnology Letters 24, 427–431 (2002). https://doi.org/10.1023/A:1014562504882
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DOI: https://doi.org/10.1023/A:1014562504882