3. Results and discussion
3.1. Screening for phytase enzyme producing microorganisms
The phytase producing isolates were screened on a medium containing 5% calcium phytate as the sole carbon source.
Ten bacterial and four fungus colonies were picked on the basis of the clearing zones around the colonies. Secondary screening on liquid medium was achieved to choose only the potential phytase producer. Among, 5 fungal isolates the fungus coded GE1 showed maximum phytase productivity (150 U/ml) (data not shown). Accordingly, this isolate was
chosen for further investigations.