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Estimation of artificial colourants permitted in Brazil in food products

, : Estimation of artificial colourants permitted in Brazil in food products. Revista de Farmacia e Bioquimica da Universidade de Sao Paulo 28(1/2): 30-42

A simple, inexpensive method for the estimation of 8 artificial food colourants (Amaranth, Sunset Yellow FCF, Brilliant Blue FCF, Erythrosine, Indigotine, Ponceau 4 R, Tartrazine and Red 40) used in Brazil is described. The colourants were extracted with chloroform and n-butanol in the form of ionic pairs obtained with citrimide. The colourants were identified by thin-layer chromatography (silica gel G saturated with citrimide) using 2 solvent systems.

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