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Qualitative and quantitative analysis of organic acid production influenced by phosphate sources under submerged culture of Aspergillus Niger a phosphate solubilising fungi

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Aspergillus niger inoculated into medium containing Tricalcium phosphate (TCP) and Rock phosphate (RP) resulted in acid production which is indicated from the measure of pH and titrable acidity. Maximum of 105 mM acid production is recorded in TCP supplemented culture of 12 days whereas it is 124 mM in nutrient medium aided with RP and 14 days old culture. |