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Inactivation of aflatoxins in cottonseed meal by ammoniation: I. Reaction studies
Author(s) -
Koltun S. P.,
Rayner E. T.,
Wadsworth J. I.,
Gardner H. K.
Publication year - 1979
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02909523
Subject(s) - cottonseed meal , aflatoxin , cottonseed , anhydrous , meal , chemistry , ammonia , food science , chromatography , zoology , soybean meal , biochemistry , organic chemistry , biology , raw material
Cottonseed meal containing an average of 340 ppb total aflatoxins was treated with anhydrous liquid ammonia under varying conditions of time, temperature, and ammonia concentration. Meal moisture was held constant at 10%. A unique sampling device was constructed and used to withdraw meal at time intervals as frequent as 5 min during the reaction period, without interrupting the ammoniation process. The rate of aflatoxin inactivation occurring under a given set of treatment conditions was thus monitored. The data obtained in this study indicate that the inactivation of aflatoxins in cottonseed meal, as determined by chemical assay, may be successfully achieved by use of less stringent conditions of time, temperature, pressure, and moisture content than previous studies have indicated.