Comparison of three methods for determining aflatoxins in sunflower seed meals

Methods developed for the determination of aflatoxins in peanut products, in cottonseed products, and in ginger were compared for their applicability to sunflower seed meal. The peanut products method was inapplicable. Separation from interferences adequate to obtain a limit of determination for aflatoxin B1 around 1 ng/g and recovery of total added aflatoxins of about 97% could be achieved with either the cottonseed or ginger methods. The cleanest extract and the most rapid operation were obtained with the ginger method.