Production of L(+)-lactic acid with Rhizopus oryzae immobilized in polyurethane foam cubes
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Polyurethane foam cubes were employed as carriers to immobilize Rhizopus oryzae for L(+)-lactic acid production. The immobilizing capacity reached 450 g-fresh cell/l-cube. The production rate of L(+)-lactic acid could be threefold increased by using the immobilized R. oryzae. The immobilized cells could be steadily used in repetitive fermentations for more than 10 batches.
KeywordsFermentation Foam Organic Chemistry Lactic Acid Production Rate
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