JOURNAL OF CULTURE COLLECTIONS

Volume 5, 2006-2007, pp. 16-24

Protease activity of some mesophilic streptomycetes
isolated from Egyptian habitats

Hala M. Rifaat¹*, Osama H. El-Said², Sadia M. Hassanein³ and Manal S. M. Selim²

¹Microbial Chemistry Department, National Research Centre, Bohos Street, Cairo, Egypt,

²Microbial Biotechnology Department, National Research Centre, Cairo, Egypt;

³Microbiology Department, Ein Shams University, Cairo, Egypt

*Corresponding author, e-mail: halamohamed6@hotmail.com

Summary

Different streptomycetes (317 isolates) were obtained from several sources and areas in Egypt and were screened for proteolytic activity. Thirty nine of them produced proteases and were subjected to identification. Streptomyces anulatus formed the most abundant portion of the isolates. This species deserves special attention because it is a good candidate for biotechnological applications.

Key words: Egypt, identification, isolation, protease, streptomycetes.

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