Influence of nitrogen sources on production of b-galactosidase by Aspergillus niger
M. Siddique Awan1*, Shahzad Akbar Khan1, Z. U. Rehman1, Azhar Saleem2, S. M. Rana3 and M. I. Rajoka3,4
1Faculty of Agriculture, Rawalakot, University Azad Jammu and Kashmir, Pakistan.
2Department of Statistics, AJ and K University Muzaffarabad AK, Pakistan.
3GC University, Faisalabad Pakistan.
4National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.
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