Production of Dye-Decolorizing Peroxidase (rDyP) from Complex Substrates by Repeated-Batch and Fed-Batch Cultures of Recombinant Aspergillus oryzae

摘要

We examined production levels of dye-decolorizing peroxidase (rDyP) by recombinant Aspergillus oryzae using wheat bran and rice bran powders in repeated-batch and fed-batch cultures.Similar average rDyP productivities were observed in repeated-batch cultures using wheat bran powder and rice bran powder.Average rDyP productivities in fed-batch cultures were slightly lower than those in repeated-batch cultures.The rDyP production was affected by the addition of K2HPO4 in the repeated-batch and fed-batch cultures using wheat bran powder.All average rDyP productivities in this study were significantly higher than those for any other peroxidases previously reported.