The effect of yeast extract on the fermentation of glucose to 2,3-butanediol by Bacillus polymyxa |
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| Authors: | V M Laube D Groleau S M Martin |
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| Institution: | (1) Division of Biological Sciences, National Research Council of Canada Ottawa, K1A 0R6 Ontario, Canada;(2) Present address: Centre Recherche Industrielle du Québec, 33, rue Franquet, B1V 4C7 Sainte-Foy (Québec), Canada |
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| Abstract: | The fermentation of glucose to 2,3-butanediol by Bacillus polymyxa was improved by increasing the amount of yeast extract in the culture medium. A level of 1.5% (w/v) resulted in optimal 2,3-butanediol production. A comparable fermentation could be achieved with 0.5% yeast extract if the phosphate level of the medium was increased from 0.0026 to 0.078 M and the medium was supplemented with 40  M iron and 1.7 M manganese.NRCC #23497 |
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