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Acetone and Butanol Production by Clostridium acetobutylicum in a Synthetic Medium.
The effect of the component concentrations of a synthetic medium on acetone and butanol fermentation by Clostridium acetobutylicum ATCC 824 was investigated. Cell growth was dependent on the presenceExpand
Influence of pH and undissociated butyric acid on the production of acetone and butanol in batch cultures of Clostridium acetobutylicum
SummaryThe kinetics of growth and acid and solvent production are examined in batch fermentation of Clostridium acetobutylicum at pH between 4.5 and 6.0. At the lower pH, growth occurs in twoExpand
Cellulose Catabolism by Clostridium cellulolyticum Growing in Batch Culture on Defined Medium
ABSTRACT A reinvestigation of cellulose degradation by Clostridium cellulolyticum in a bioreactor with pH control of the batch culture and using a defined medium was performed. Depending on celluloseExpand
Improvement of Cellulolytic Properties of Clostridium cellulolyticum by Metabolic Engineering
ABSTRACT Cellulolytic clostridia have evolved to catabolize lignocellulosic materials at a seasonal biorhythm, so their biotechnological exploitation requires genetic improvements. As high carbonExpand
Carbon and electron flow in Clostridium cellulolyticum grown in chemostat culture on synthetic medium.
Previous results indicated poor sugar consumption and early inhibition of metabolism and growth when Clostridium cellulolyticum was cultured on medium containing cellobiose and yeast extract.Expand
Regulation of the NADH and NADPH-ferredoxin oxidoreductases in clostridia of the butyric group.
NADH and NADPH-ferredoxin oxidoreductases have been studied in Clostridium acetobutylicum, Cl. tyrobutyricum and Cl. pasteurianum. The study of the distribution and regulation of these enzymaticExpand
Regulation of nisin biosynthesis by continuous cultures and by resting cells of Lactococcus lactis subsp. lactis.
Nisin production by Lactococcus lactis subsp. lactis has been investigated using lactose as carbon source. Whether or not continuous cultures were lactose-limited, maximum nisin titre was observed atExpand
Isolation and Characterization of Clostridium butyricum DSM 5431 Mutants with Increased Resistance to 1,3-Propanediol and Altered Production of Acids.
Clostridium butyricum mutants were isolated from the parent strain DSM 5431 after mutagenesis with N-methyl-N(prm1)-nitro-N-nitrosoguanidine and two selection procedures: osmotic pressure and theExpand
The acetone butanol fermentation on glucose and xylose. I. Regulation and kinetics in batch cultures
The kinetics in batch culture of the acetone butanol fermentation by Clostridium acetobutylicum is compared on glucose, xylose, and mixtures of both sugars. The fastest initial growth and transitionExpand
Carbon and electron flow in Clostridium butyricum grown in chemostat culture on glycerol and on glucose.
The metabolism of Clostridium butyricum DSM 5431 was studied in chemostat culture under carbon limitation using either glucose or glycerol. On glycerol, the enzymes glycerol dehydrogenase, diolExpand