title: Simultaneous thin layer chromatographic determination of aflatoxin B1 and ochratoxin A in black olives.
abstract: A screening method has been developed for simultaneous determination of aflatoxin B1 and ochratoxin A in black olives. The technique includes extraction of both mycotoxins with aqueous methanol, cleanup using lead acetate, defatting with hexane, partitioning in chloroform, and thin layer chromatography. Detection limits are 5-7 micrograms aflatoxin B1 and 20 micrograms ochratoxin A/kg.
mesh_terms: D016604:Aflatoxin B1; D000348:Aflatoxins / Q000032:analysis*; D002855:Chromatography, Thin Layer / Q000379:methods; D005506:Food Contamination / Q000032:analysis; D005638:Fruit / Q000032:analysis*; D009793:Ochratoxins / Q000032:analysis*
chemical_list: D000348:Aflatoxins; D009793:Ochratoxins; C025589:ochratoxin A; D016604:Aflatoxin B1