title: The effects of microwave-baking and oven-baking on thiabendazole residues in potatoes.
abstract: The effect of microwave- and oven-baking on residues of the postharvest fungicide thiabendazole (E 233) in potatoes was investigated by comparing amounts present in raw, microwave- and oven-baked tubers. The levels of residues in the whole potato tubers were based on the determination of thiabendazole in peelings and flesh of potato tubers by reversed-phase HPLC analysis with fluorescence and UV detection after extraction with dichloromethane in the presence of anhydrous sodium sulphate. Amounts of thiabendazole determined after microwave- and oven-baking showed that thiabendazole was predominantly retained in the peelings (96.3-98.8%) and not lost during the two types of processing treatments at ca. 100 degrees C. Thus residues did not migrate into the flesh of the tubers.
authors.affiliation: Department of Food Science and Technology, University of Reading, UK.
authors.forename: P M
authors.initials: PM
authors.lastname: Friar
authors.forename: S L
authors.initials: SL
authors.lastname: Reynolds
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003296:Cooking; D005506:Food Contamination / Q000032:analysis*; D006358:Hot Temperature; D008872:Microwaves; D010573:Pesticide Residues / Q000032:analysis*; D011198:Solanum tuberosum / Q000737:chemistry*; D013827:Thiabendazole / Q000032:analysis*
chemical_list: D010573:Pesticide Residues; D013827:Thiabendazole