Analysis of Annatto (Bixa orellana) Food Coloring Formulations. 2

analogous compounds have been reported to be the main colored thermal degradation products of bixin and norbixin, the principal coloring components of...
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J. Agric. Food Chem. 2000, 48, 484−488

Analysis of Annatto (Bixa orellana) Food Coloring Formulations. 2. Determination of Aromatic Hydrocarbon Thermal Degradation Products by Gas Chromatography Michael J. Scotter,* Lesley A. Wilson, Graeme P. Appleton, and Laurence Castle Ministry of Agriculture, Fisheries and Food, CSL Food Science Laboratory, Norwich Research Park, Colney, Norwich NR4 7UQ, United Kingdom

Twenty samples of commercial annatto formulations have been analyzed for m-xylene and toluene using ambient alkaline hydrolysis, followed by solvent extraction and capillary gas chromatography. Fifteen of the samples contained