Screening of Keratinolytic Bacteria from Poultry Wastes

Authors

  • Z Jahan Department of Microbiology, University of Dhaka, Dhaka
  • SN Khan Department of Microbiology, University of Dhaka, Dhaka
  • M Mozammel Hoque Department of Microbiology, University of Dhaka, Dhaka

DOI:

https://doi.org/10.3329/bjsir.v45i3.6535

Keywords:

Identification, Purification, Characterization, Keratinase, Feather

Abstract

The aim of this study was to characterize keratinolytic bacteria isolated from feather waste. Six isolates were recovered from poultry feather- decomposed materials. Isolate Z3 and Z4 showed important feather degrading activity when grown on basal medium containing 1% native feather as the only source of energy, carbon and nitrogen. All isolates were Gram positive and rod-shaped bacilli. Based on microscopic and biochemical analysis, the isolates were identified as Bacillus spp. Keratinolytic activities of these isolates were measured after cultivation of the bacteria on raw feathers. Maximum keratinase activity was showed by the isolate Z4 (22.3 U/ml) with the specific activity of 40.5 U/mg. Bacillus sp. Z4 is a potent producer of keratinase, which can be used for production of the enzyme in large scale.

Key words: Identification; Purification; Characterization; Keratinase; Feather

DOI: 10.3329/bjsir.v45i3.6535

Bangladesh J. Sci. Ind. Res. 45(3), 261-266, 2010

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How to Cite

Jahan, Z., Khan, S., & Hoque, M. M. (2010). Screening of Keratinolytic Bacteria from Poultry Wastes. Bangladesh Journal of Scientific and Industrial Research, 45(3), 261–266. https://doi.org/10.3329/bjsir.v45i3.6535

Issue

Vol. 45 No. 3 (2010)

Section

Short Communications

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