4. Conclusion
Waste materials cause a problem all over the world; they always need a new strategy to get rid of it with a benefit target.
Millions tons of corn cob and corn bran are accumulated every year as byproducts of industrial work without considerable
benefits. In our study, we open a new arena of research in the production of P. purpurogenum GE1 phytase by using corn cob and corn bran as substrates. The enzyme was produced under solid state fermentation (SSF) and the conditions for enzyme production were optimized by using Box–Behnken design. We suggest that our work will have great benefit in solving corn cob and corn bran waste problem. Also, our research introduced a low cost medium and very simple technique
in phytase production which is considered as one of
the most important enzymes.