Three fractions of tannins were isolated from Florunner peanut testa. Both the growth of Aspergillus parasiticus (NRRL 2999) on PDA agar and production of aflatoxins in liquid culture were inhibited by the tannins. The ability to inhibit growth was inversely related to the ability to inhibit aflatoxin production for each fraction. Two types of tannin assays were inadequate as predictors of the biological activity of the tannin fractions.

Aflatoxin, Aspergillus parasiticus, Tannin, Peanut, Fungistasis
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American Peanut Research and Education Society
1982
American Peanut Research and Education Society