title: Metabolic behaviour of aflatoxin producing strain and non-toxigenic strain of Aspergillus flavus to different sources of nitrogen and glucose concentration.
abstract: The effect of different nitrogen sources and varying glucose concentration on aflatoxin production by a toxigenic and non-toxigenic strain of Aspergillus flavus was studied. Greatest production (3.8 ppm) of aflatoxin B1 was produced in a synthetic medium when casamino acids were supplied as the nitrogen source. Optimum sugar concentration for aflatoxin B1 production ranged between 3 and 10 g/100 ml. There was no appreciable difference in the metabolic behaviour between toxigenic and non-toxigenic strains of A. flavus when dry mycelial weight, total proteins, non-protein nitrogen and reducing sugar were the criteria.
mesh_terms: D016604:Aflatoxin B1; D000348:Aflatoxins / Q000096:biosynthesis*; D000596:Amino Acids / Q000378:metabolism; D001231:Aspergillus flavus / Q000032:analysis / Q000254:growth & development / Q000378:metabolism*; D005947:Glucose / Q000378:metabolism*; D006801:Humans; D009566:Nitrates / Q000378:metabolism; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism*
chemical_list: D000348:Aflatoxins; D000596:Amino Acids; D009566:Nitrates; D016604:Aflatoxin B1; D005947:Glucose; D009584:Nitrogen; C006568:ammonium nitrate