Citric acid production by different local isolates of mushrooms Aspergillus niger

Abstract

Thirty two different local isolates of the fungus Aspergillus niger were obtained from different sources such as (seeds , plant parts , soil , air , and plants callus infected with the fungus).The local isolates were compared with their efficiencies to produce citric acid. Production of citric acid by the isolate obtained from chickpea seeds highly exceededthat produced by other isolates of the fungus .The production of citric acid by this isolate was( 20.41g 1 )after ten days of incubation.

Keywords

• citric acid
• mushrooms aspergillus niger
• fungus