Abstract
Submerged fermentation experiments were carried out to study the stimulating effects of the surfactant Span 20 on the growth of Aspergillus niger XP mutant and oxalic acid production from the post-refining fatty acids. Span 20 concentration of 0.75 g dm−3 was found to be the most suitable for oxalic acid production from fatty acids. Using this dose and a fermentation medium containing 30 g dm−3 of post-refining fatty acids, the oxalic acid production, oxalate yield, and overall oxalate productivity were the highest.
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© 2006 Institute of Chemistry, Slovak Academy of Sciences
Artikel in diesem Heft
- FTIR study of gamma-irradiated cis-1,4-polyisoprene
- Comparison of betaine and l-stachydrine as phase-transfer catalysts in Michael addition and Darzens reaction
- Synthesis and cyclization reactions with pyrazolopyrimidinyl keto esters part I. Reactivity of pyrazolopyrimidinyl β-keto ester and pyrazolopyrimidinyl α,β-unsaturated ketones
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- Effect of chloride ions on the kinetics of nitrobenzene reduction by powdered iron
- Displacement washing of pulp with urea solutions
- Methane esterification in oleum
- Momentum transfer in an agitated vessel with off-centred impellers
- Optimal control of a two-stage reactor system
- Effect of span 20 concentration on oxalic acid production from post-refining fatty acids by Aspergillus niger XP
- Citric acid production from raw glycerol by acetate mutants of Yarrowia lipolytica
- Phosphonium ionic liquids as new, reactive extractants of lactic acid
Artikel in diesem Heft
- FTIR study of gamma-irradiated cis-1,4-polyisoprene
- Comparison of betaine and l-stachydrine as phase-transfer catalysts in Michael addition and Darzens reaction
- Synthesis and cyclization reactions with pyrazolopyrimidinyl keto esters part I. Reactivity of pyrazolopyrimidinyl β-keto ester and pyrazolopyrimidinyl α,β-unsaturated ketones
- Electrodeposition of mercury film on electrodes modified with clay minerals
- Properties of Ni-W alloy coatings on steel substrate
- Effect of chloride ions on the kinetics of nitrobenzene reduction by powdered iron
- Displacement washing of pulp with urea solutions
- Methane esterification in oleum
- Momentum transfer in an agitated vessel with off-centred impellers
- Optimal control of a two-stage reactor system
- Effect of span 20 concentration on oxalic acid production from post-refining fatty acids by Aspergillus niger XP
- Citric acid production from raw glycerol by acetate mutants of Yarrowia lipolytica
- Phosphonium ionic liquids as new, reactive extractants of lactic acid