Palavras-chave
pigmentos
teores de: chumbo, cádmio, zinco
embalagens para alimentos
Como Citar
Resumo
Entre os aditivos presentes na formulação de embalagens para alimentos, principalmente embalagens plásticas, incluem-se as substâncias que conferem coloração, classificadas como corantes ou pigmentos, dependendo de sua solubilidade ou não no polímero. Sua adição em materiais para embalagens satisfaz uma exigência estética e tecnológica. Os metais que podem estar presentes como contaminantes das substâncias corantes e portanto nas embalagens, podem migrar para o alimento, apresentando riscos à saúde. O objetivo deste trabalho foi verificar e monitorar os teores de chumbo, cádmio e zinco nestes produtos, e validar a metodologia analítica segundo os Regulamentos Técnicos do Mercosul (Resolução Nº 105/99 da ANVISA/MS). A quantificação destes metais foi feita por espectrofotometria de absorção atômica com chama. Das 407 amostras analisadas 5% estavam em desacordo com os limites estipulados pela legislação vigente. Os altos teores de metais nelas encontrados justificam o controle contínuo que deve ser feito sobre estes produtos.
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Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
Copyright (c) 2004 Odair Zenebon, Lúcia Tieco Fukushima Murata, Neus Pascuet, Maria Rosa da Silva de Alcântara, Maria Cecília Depieri Nunes, Eliani Rosa Ribeiro, Paulo Tiglea