| fumonisin b1 and hydrolyzed fumonisin b1 (ap1) in tortillas and nixtamalized corn (zea mays l.) from two different geographic locations in guatemala. | fumonisin b1 (fb1) is a common contaminant of corn worldwide and is responsible for several diseases of animals. in the preparation of tortillas, corn is treated with lime (producing nixtamal) that when heated hydrolyzes at least a portion of the fb1 to the aminopentol backbone (ap1), another known toxin. this study analyzed the amounts of fb1 and ap1 in tortillas and nixtamal from two communities in the central highlands of guatemala where corn is a major dietary staple (santa maria de jesus, s ... | 1999 | 10528731 |