Abstract
Natural incidence of cyclopiazonic acid (CPA) in corn from the southern part of China and Southeast Asian countries including Indonesia, Thailand, and the Philippines, was surveyed using a combination of a clean-up procedure consisting of diethyl ether liquid-liquid extraction and HPLC-UV analysis. Out of 99 corn samples analyzed, 15 samples (15%) were contaminated with CPA. The detected concentration of CPA ranged from 27 to 1510 μg/kg, with all CPA positive samples contaminated with aflatoxin B1 (AFB1). It was noteworthy that the high level of CPA together with AFB1 over 1000 μg/kg was found in the samples intended for human consumption from China and the Philippines.
