Biosynthesis of ochratoxin A.

  • 1 October 1969
    • journal article
    • Vol. 18  (4) , 622-7
Abstract
Biosynthesis of ochratoxin A by Aspergillus ochraceus Wilh. was investigated by radiolabeling experiments in which phenylalanine-1-(14)C and sodium acetate-2-(14)C were supplied to the fungus in sucrose-yeast extract medium. Results showed that phenylalanine was incorporated unaltered into the phenylalanine moiety of ochratoxin A, whereas the isocoumarin moiety of ochratoxin A was mostly derived via acetate condensation.