Abstract
ABSTRACT: A simple method has been developed in this work for the detection of alternariol (AOH), alternariol monomethyl ether (AME), altenuene (ALT), altertoxin I (ATX‐I), tenuazonic acid (TA), and tentoxin by means of thin‐layer chromatography from cultures of several strains of Alternaria. Strains were incubated in 2% malt extract broth for 7 d at 25 °C. For extraction of metabolites, chloroform was used. The solvent system benzene/methanol/acetic acid (92:6:2) was chosen. TLC plates were observed under ultraviolet light (254/366 nm). Results show that A. alternata IMI 354942 produced AOH, AME, ALT, ATX‐I, tentoxin, and TA; A. alternata IMI 354943, AOH, AME, and TA; A. triticina IMI 289962 tentoxin; and A. triticina IMI 289680 AME, ATX‐I, and TA.
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