Production of Acetone-Butanol by Extractive Fermentation Using Dibutylphthalate as Extractant

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概要

• 論文の詳細を見る

• Extractive fermentation of glucose, glucose-xylose mixtures and hydrolysates of lignocellulosics to acetone-butanol solvents were studied and compared with similar fermentations in the absence of extractant. The extractant selected for this research was dibutylphthalate which, in addition to having satisfactory physical properties for this purpose, is non-toxic and mildly stimulating to the growth of the organism used, Clostridium acetobutylicum P262. Sugar concentrations mainly in the range of 80 to 100 g/l resulted in solvent concentrations of 28 to 30 g/l in 24 h extractive fermentations, compared to 18 to 20 g/l for non-extractive control fermentations. Conversion factors of 0.33 to 0.37 g solvents/g sugar consumed were obtained. Rapid fermentation was achieved by high cell concentrations and cell recycle from each 24 h fermentation to the succeding similar 24 h fermentation. Somewhat higher nutrients were also helpful. By this means, 255 l of acetone-butanol solvents were obtained per tonne of aspen wood, 298 l per tonne of pine and 283 l per tonne of corn stover. Such high product yields from inexpensive substrates offer the prospect of conomic viability for the process.

• 社団法人日本生物工学会の論文
• 1987-06-25

著者

• Parekh Rannade

  Department Of Chemical Engineering And Applied Chemistry University Of Toronto

• WAYMAN MORRIS

  Department of Chemical Engineering and Applied Chemistry, University of Toronto

• Wayman Morris

  Department Of Chemical Engineering And Applied Chemistry University Of Toronto

関連論文

• Production of Acetone-Butanol by Extractive Fermentation Using Dibutylphthalate as Extractant

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