Aflatoxin production by Aspergillus flavus field isolates.
A total of 103 Aspergillus flavus isolates from 150 agricultural commodities and animal feed samples were tested for aflatoxin production by growing on a semisynthetic liquid medium for 1 w followed by chromatography and spectrophotometric quantification for aflatoxin. All isolates produced 1 or more aflatoxins; 41 isolates (40%) produced all 4 aflatoxins (B1, B2, G1 and G2). Aflatoxin G1 was produced by 81 (80%) of the isolates.
Gabal
M A
MA
Department of Microbiology, Immunology and Preventive Medicine, Iowa State University, Ames 50011.
Hegazi
S A
SA
Hassanin
N
N
D016604:Aflatoxin B1 / Q000096:biosynthesis; D000348:Aflatoxins / Q000096:biosynthesis*; D000821:Animal Feed / Q000382:microbiology; D001231:Aspergillus flavus / Q000302:isolation & purification / Q000378:metabolism*; D002850:Chromatography, Gel; D005516:Food Microbiology; D010936:Plant Extracts / Q000378:metabolism; D012015:Reference Standards; D013056:Spectrophotometry, Ultraviolet; D003313:Zea mays / Q000382:microbiology
D000348:Aflatoxins; D010936:Plant Extracts; C027955:aflatoxin G1; C029754:aflatoxin G2; C029753:aflatoxin B2; D016604:Aflatoxin B1