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Incidence of Toxic Alternaria Species in Small Grains from the USA
Author(s) -
BRUCE VERNEAL R.,
STACK MICHAEL E.,
MISLIVEC PHILIP B.
Publication year - 1984
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.1365-2621.1984.tb12864.x
Subject(s) - alternariol , alternaria , brine shrimp , biology , sodium hypochlorite , botany , fusarium , food science , chemistry , ecology , organic chemistry
A total of 230 small grain samples from me U.S.A. (148 wheat, 57 barley, 2.5 rye) were examined for the presence of species of Alternaria mold after surface disinfection with 5% sodium hypochlorite. One or more of nine different Alternaria species were detected in 184 of the samples. Of the eight species tested, all produced tenuazonic acid and seven produced alternariol and alternariol methyl ether. Production of these toxins by four of the species is reported for the fist time. Although extracts from cultures of the eight species were toxic to brine shrimp, the above three toxins were not involved, suggesting that additional toxic metabolites were present.