Survey of cyclopiazonic acid contamination in corn [Zea mays] from China and Southeast Asian countries
2005
Hayashi, Y.(Kagawa Univ., Miki (Japan). Faculty of Agriculture) | Yoshizawa, T.
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 micro g/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 micro g/kg was found in the samples intended for human consumption from China and the Philippines.
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