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Iron effect on acetone-butanol fermentation
WhenClostridium acetobutylicum was grown in batch culture under iron limitation (0.2 mg·l−1) at a pH of 4.8, glucose was fermented, to butanol as the major fermentation end product, and smallExpand
Effects of butyric and acetic acids on acetone-butanol formation by Clostridium acetobutylicum.
The actions of butyric and acetic acids on acetone-butanol fermentation are investigated. Production of butyric and acetic acids are controlled by the extracellular concentrations of both acids:Expand
Screening ofBifidobacterium strains for bacteriocin production
SummaryThirteen strains of bifidobacteria (Bifidobacterium) were examined for bacteriocin production. One strain among these produced bacteriocin which is active against lactic streptococci strainsExpand
Effect of pyruvate on glucose metabolism in Clostridium acetobutylicum.
Pyruvate effects on the metabolism of Clostridium acetobutylicum during glucose fermentation were studied. After addition to the culture medium, the pyruvate was rapidly used, provoking severalExpand
Regulation of coenzyme A transferase and acetoacetate decarboxylase activities in Clostridium acetobutylicum.
The activity of two enzymes involved in acetone production in Clostridium acetobutylicum, acetoacetate decarboxylase and coenzyme A transferase, was studied under acidogenic or solventogenicExpand
Pyruvate fermentation by Clostridium acetobutylicum.
Clostridium acetobutylicum ATCC 824 using pyruvate as the sole carbon source produced mainly acetate and butyrate as end products of fermentation. Acetate and butyrate kinase activities were higherExpand
[Selection of mutants of Clostridium acetobutylicum defective in production of acetone].
The butyrate analogue 2-bromobutyrate is toxic toward Clostridium acetobutylicum. After mutation using nitrosoguanidine, mutants resistant to the suicide co-substrate 2-bromobutyrate were selected.Expand
Acetone-butanol fermentation by mutants selected for resistance to acetate and butyrate halogen analogues
SummaryAcetate and butyrate halogen analogues have been used to select mutants resistant to these suicide cosubstrates. Bromoacetate, chloroacetate, fluoroacetate, chlorobutyrate allowed theExpand
Influence of acetic and butyric acid addition on polysaccharide formation byClostridium acetobutylicum
SummaryThe 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 theExpand
Clostridium acetobutylicum mutants isolated for resistance to the pyruvate halogen analogs
Pyruvate halogen analogs, 3-fluoropyruvate and 3-bromopyruvate, are toxic towardClostridium acetobutylicum. After mutagenesis with nitrosoguanidine, mutants resistant to these compounds wereExpand