Influence of acetic and butyric acid addition on polysaccharide formation byClostridium acetobutylicum |
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Authors: | A. M. Junelles A. El Kanouni H. Petitdemange R. Gay |
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Affiliation: | (1) Laboratoire de Chimie Biologique I, Université de Nancy I, B.P. 239, 54506 Vandoeuvre-les-Nancy, France |
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Abstract: | Summary The production of granulose (an intracellular reserve polygranule), capsule and exopolysaccharide was investigated in a synthetic medium in which the oxido-reduction level was modified by the addition of acetic or butyric acid. After addition of the acids, granulose synthesis increased from 150 to 300 mg glucose equivalents ·1–1 and capsular synthesis decreased by 25%. Exopolysaccharide production was unchanged under these conditions. A hypothesis that attributes a role to the polymer in the oxido-reduction sequences is discussed. |
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Keywords: | Clostridium acetobutylicum Granulose Capsule Exopolysaccharide Oxido-reduction |
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