Production of citric acid by locally isolated Aspergillus niger using agriculture wastes

The goal of the research focused on isolation and screening of different local strains of Aspergillus niger for their ability to grow and produce citric acid; selection of the most potent isolates for citric acid production; optimization certain environmental and nutritional parameters affecting citric acid production by the most efficient fungal strains; utilization of certain available and cheap agricultural wastes as alternatives to citric acid chemical substrates and studying of the influence of mutagenic agents on the most potent A. niger strains.