Skip to main content
Log in

Purification of alkaline protease of Rhizopus oryzae by foam fractionation

  • Originals
  • Published:
Bioprocess Engineering Aims and scope Submit manuscript

Abstract

Studies on the cost effective purification method is very much essential for the industrially important enzyme like protease. As foam fractionation is an important technique in downstream processing of the biologicals, purification of the crude proteolytic enzyme produced by Rhizopus oryzae has been attempted using converging-diverging foam fractionator. The effects of different parameters studied on the purification efficiency by foam fractionation were pH of the broth, air flow rate, initial liquid height. The results obtained were found quite encouraging at pH 10 with 1 LPM of air flow rate at low initial liquid height.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Agnihotri, R.: Separation and purification of extra cellular enzymes from Rhizopus oryzae using foam fractionation. B.Tech Thesis, IIT Kharagpur, 1992

    Google Scholar 

  2. Sebba, Felix.: Foam and emulsion-formation properties and breakage, chemistry and physics of the interfaces. American Chemical Society publication, 1969

  3. Banerjee, R.; Bhattacharya B. C.: Optimization of multiple inducers effect on protease biosynthesis by Rhizopus oryzae. Bioprocess Eng. 7 (1992) 225–228

    Google Scholar 

  4. Banerjee, R.; Bhattacharyya, B. C.: Extracellular alkaline protease of newly isolated Rhizopus oryzae. Biotechnol. Letters 14 (1992) 301–304

    Google Scholar 

  5. Banerjee, R.; Bhattacharyya, B. C.: Purification and characterization of protease from a newly isolated Rhizopus oryzae. Bioprocess Eng. 7 (1992) 369–374.

    Google Scholar 

  6. Banerjee, R.; Bhattacharya, B. C.: Evolutionary Operation (EVOP) to optimize three dimensional biological experiments. Biotechnol. Bioeng. 41 (1993) 67–71.

    Google Scholar 

  7. Bradford, M. M.: A rapid and sensitive method for the quantitation of microgram quantities of protein utilising the principles of protein dye binding. Analytical Biochemistry 72 (1976) 248

    Google Scholar 

  8. Ahmed, S. I.: Separation Science. 5 (1970) 379

    Google Scholar 

  9. Kirk-Othmer, (Ed.): Encyclopedia of Chemical Technol. John Wiley and Sons (1987)

  10. Norde, W.: Advances in colloidal interface science. 25 (1986) 267

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Banerjee, R., Agnihotri, R. & Bhattacharyya, B.C. Purification of alkaline protease of Rhizopus oryzae by foam fractionation. Bioprocess Engineering 9, 245–248 (1993). https://doi.org/10.1007/BF01061529

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01061529

Keywords

Navigation