Effect of controlled substrate feeding on butyric acid production byClostridium tyrobutyricum
- 1 November 1990
- journal article
- conference paper
- Published by Oxford University Press (OUP) in Journal of Industrial Microbiology & Biotechnology
- Vol. 6 (3) , 179-183
- https://doi.org/10.1007/bf01577693
Abstract
Production of butyric acid from wheat flour hydrolysate was studied withClostridium tyrobutyricum. The mode of substrate supply was found a key parameter for fermentation performance as large improvements were obtained by feeding with a non-limiting supply of substrate. With this procedure, increases in product concentration and productivity but also in selectivity and yield for butyrate were obtained. Substrate feeding controlled by the rate of gas production was found preferable to constant rate feeding for reason of convenience and flexibility. In these conditions, a butyrate concentration of 62.8 gl−1 was obtained with a productivity of 1.25 gl−1 h−1, a selectivity of 91.5% and a yield of 0.45 g per g of glucose.Keywords
This publication has 5 references indexed in Scilit:
- Control of the selectivity of butyric acid production and improvement of fermentation performance withClostridium tyrobutyricumApplied Microbiology and Biotechnology, 1990
- Conditions promoting stability of solventogenesis or culture degeneration in continuous fermentations of Clostridium acetobutylicumApplied Microbiology and Biotechnology, 1988
- Growth and butyric acid production by Clostridium populetiArchiv für Mikrobiologie, 1988
- Direct bioconversion of alkali-pretreated straw using simultanesous enzymatic hydrolysis and acetone-butanol fermentationBiotechnology Letters, 1984
- Cellulose fermentationJournal of the Society of Chemical Industry, 1932