Additional file 1: Figure S1. Effect of different carbon sources on enzyme production by cultivating T. reesei. Figure S2. Effect of different carbon sources on enzyme production by cultivating T. harzianum. Figure S3. Effect of different carbon sources on enzyme production by cultivating A. niger. Figure S4. Effect of different nitrogen sources on enzyme production by cultivating T. reesei. Figure S5. Effect of different nitrogen sources on enzyme production by cultivating T. harzianum. Figure S6. Effect of different nitrogen sources on enzyme production by cultivating A. niger.