pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-9-1-5 Articles Aflatoxin Inhibition and Fungistasis by Peanut Tannins1 John A. Lansden 2 Chemist, USDA National Peanut Research Laboratory, 600 Forrester Drive, Dawson, Georgia 31742

1Mention of a trademark or proprietary product does not constitute a guarantee or warranty of the product by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable.

 1 1982 9 1 17 20 12 1 1982 American Peanut Research and Education Society 1982 American Peanut Research and Education Society Abstract

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.

 Key Words Aflatoxin; , Aspergillus parasiticus; , Tannin; , Peanut; , Fungistasis