Production of itaconic acid by Aspergillus terreus immobilized in polyacrylamide gels
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Living Aspergillus terreus cells were entrapped in polyacrylamide gels and employed in both replacement batch and continuous column reactors to produce itaconic acid from glucose.
With the replacement batch reactor, maximum itaconic acid productivity was observed under the following conditions: pH 2.50, temperature at 35°C, addition of NH4H2PO4 and MgSO4·7H2O. Using the continuous reactor, the maximum itaconic acid yield was 60 mg/h/40 g of gel. The biocatalyst activity or half-life was about 10 days.
KeywordsGlucose Polyacrylamide MgSO4 Aspergillus Acid Productivity
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