For growing A. niger strain HQU-3, Solid Bran Medium (one batch) was made by dissolving 0.25 g of ammonium sulfate and 0.13 g of dibasic potassium phosphate in 10.5 ml of water,
For growing A. niger strain HQU-3, Solid Bran Medium (one batch) was made by dissolving 0.25 g of ammonium sulfate and0.13 g of dibasic potassium phosphate in 10.5 ml of water,