Influence of growth factor supplements on butyric acid production from sucrose byClostridium butyricum |
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Authors: | D Vandák M Telgarský E Šturdík |
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Institution: | (1) Department of Biochemical Technology, Slovak Technical University, 812 37 Bratislava, Slovak Republic |
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Abstract: | During batch fermentation of sucrose to butyric acid byClostridium butyricum the effect of growth factor supplementation was determined: addition of yeast extract (5 g/L) stimulated most. Using biotin
as the sole growth factor, average productivity was definitely lower. Beet molasses as a combined source of carbon and growth
factor were effective only at a high concentration (150 g/L). The optimal butyric acid production (45 g/L, yield 45%) was
achieved with sucrose concentration of 100 g/L in a medium supplemented with yeast extract (5 g/L). It represents an average
productivity of 0.90 gL−1 h−1 and relative butyric acid concentration of 91%. |
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