Production of gluconic acid by Aspergillus niger immobilized on polyurethane foam

@article{Vassilev1993ProductionOG,
  title={Production of gluconic acid by Aspergillus niger immobilized on polyurethane foam},
  author={Nikolay B. Vassilev and Maria Ch. Vassileva and Dimitrinka I. Spassova},
  journal={Applied Microbiology and Biotechnology},
  year={1993},
  volume={39},
  pages={285-288}
}
Production of gluconic acid by cells of Aspergillus niger immobilized on polyurethane foam was studied in repeated-batch shake-flask and bubble-column fermentations. For passive immobilization, various amounts of polyurethane foam and spore suspension were tested in order to obtain a suitable combination for optimal concentration of immobilized biomass. Immobilized cells were sucessfully reused with higher levels of product formation being maintained for longer period (65–70h) than free cells… CONTINUE READING