Characterization of protease producing fungi Aspergillus funiculosus and A. tamarii, and their proteases

Authors

  • Z Shahina Department of Microbiology, University of Chittagong, Chittagong
  • MT Hossain Department of Microbiology, University of Chittagong, Chittagong
  • MA Hakim Department of Microbiology, University of Chittagong, Chittagong

DOI:

https://doi.org/10.3329/cujbs.v4i1.13390

Keywords:

Aspergillus funiculosus, Aspergillus tamarii, Protease

Abstract

Two Aspergillus spp. namely A. funiculosus (Za) and A tamarii (Zc) were isolated, purified, identified and studied for their protease activity under some selected environmental condition and nutritional factors. The strains showed the maximal activity of protease after 5 days (Za) and 6 days (Zc) of incubation at 27ºC in a medium containing peptone as nitrogen source with pH 5.0. Isolate Za showed highest protease activity in the presence of fructose as carbon source, at 35 °C, with pH 6.0 and 2.5% casien as substrate concentration. Where as for Zc it was starch as carbon source, temperature 40 °C, with pH 7.0 and 2% casien ,the isolate showed highest enzyme activity.

DOI: http://dx.doi.org/10.3329/cujbs.v4i1.13390

The Chittagong Univ. J. B. Sci.,Vol. 4(1&2):91-98, 2009

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Published

2013-01-18

How to Cite

Shahina, Z., Hossain, M., & Hakim, M. (2013). Characterization of protease producing fungi Aspergillus funiculosus and A. tamarii, and their proteases. Chittagong University Journal of Biological Sciences, 4(1), 91–98. https://doi.org/10.3329/cujbs.v4i1.13390

Issue

Vol 4, No 1&2 (2009)

Section

Articles