Abstract
Penicillic acid (PA) is a mycotoxin with reported cytotoxic, cardiotoxic, and carcinogenic activity and it can occur in high concentrations in corn. The occurrence of PA in contaminated poultry feed represents a potential public health hazard. A reverse phase high pressure liquid chromatographic (HPLC) method is proposed for determining PA residues in chicken tissues. Optimization of chromatography was achieved for PA using a mobile phase consisting of acetonitrile:H2O. PA was detected by ultraviolet absorption at 254 nm, identified by retention time, and quantitated by peak area integration. Blood, parenchymal tissues, muscle, and alimentary tract contents were homogenized, sonicated, and acid treated followed by extraction with ethyl acetate and analysis by HPLC. Acute oral dosing of chickens with PA over a range of 50 to 550 mg/kg body weight resulted in detectable levels of the mycotoxin (confirmed by gas liquid chromatography) in gizzard muscle and contents, liver, kidney, heart, and intestinal contents. This method should prove useful both for the rapid and sensitive detection of PA residues in poultry and in further studies on the distribution and metabolism of this mycotoxin.
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