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Aflatoxin and Cyclopiazonic Acid Production by Aspergillus flavus Isolated from Contaminated Maize
Author(s) -
LEE Y. JENNIFER,
HAGLER WINSTON M.
Publication year - 1991
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1991.tb05406.x
Subject(s) - cyclopiazonic acid , aflatoxin , aspergillus flavus , mycotoxin , food science , aspergillus , contamination , chemistry , biology , microbiology and biotechnology , biochemistry , ecology , intracellular
Seven truck‐loads of maize were tested for mycotoxin contamination. Aflatoxin was identified in all 7 at concentrations from 3 ng/g‐501 ng/g (aflatoxin B 1 + B 2 ). Cyclopiazonic acid was identified in 4 loads with concentrations from 25‐250 ng/g. Deoxynivalenol was found in 4 of 5 loads tested, over a range of 46‐676 ng/g. Ninteeen isolates of Aspergillus flavus from the samples were tested for ability to accumulate cyclopiazonic acid and aflatoxin in liquid culture. Fourteen produced cyclopiazonic acid (0.5‐135 μg/mL), 12 produced aflatoxin (0.01‐0.70 μg/mL, aflatoxin B 1 + B 2 ), and one aflatoxin‐producing isolate did not produce cyclopiazonic acid.