Início
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Arquivos
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v. 1 n. 1 (2020): Edição Especial: Anais do I Congresso Brasileiro de Ciências Farmacêuticas On-line
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Anais de Evento
ANÁLISE BROMATOLÓGICA DE LEITE NO MUNICÍPIO DE MOSSORÓ/RN
Autores
José Nyedson Moura de Gois
Faculdade Nova Esperança, Mossoró/RN
Crislânia Carla de Oliveira Morais
Faculdade Nova Esperança, Mossoró/RN
Luanne Eugênia Nunes
Faculdade Nova Esperança, Mossoró/RN
Palavras-chave:
Análise, Bromatologia, Leite
Resumo
Introdução: As análises bromatológicas identificam tipos de fraudes em alimentos, verificando o enquadramento nas especificações legais. O leite é uma mistura complexa contendo substâncias orgânicas e inorgânicas de coloração branca e sabor adocicado. Objetivo: Elencar as fraudes frequentes e como diagnosticá-las, para analisá-las em amostras de leites pasteurizadas e in natura comercializadas em Mossoró/RN. Materiais e Métodos: As amostras foram fracionadas em tubos de ensaio e identificadas. Foi determinada a presença de amido utilizando solução de Lugol (10%). O cálcio foi determinado através de titulação complexometrica com solução de EDTA (0,05 M) e do indicador preto de eriocromo T. O índice de acidez foi determinado pela técnica de acidez titulável (graus Dornic), onde foi adicionado o indicador fenolftaleína nas amostras juntamente com a solução de Dornic, seguido de agitação. Por fim, para identificação de cloro e hipocloritos foram adicionados 0,5 mL de solução de iodeto de potássio (7,5%) seguida de agitação. Resultados: No ensaio de adulteração por amido, nenhuma das amostras apresentou a coloração azulada, concluindo que, como desejado, o leite não contém amido em sua composição. Ao contrário do amido, o cálcio é parte intrínseca do alimento estudado, assim foi confirmada sua presença qualitativamente. As amostras apresentaram coloração rósea, ou seja, encontravam-se com sua acidez entre 16 e 17º Dornic, equivalente, em média, a um pH entre 6,6 e 6,9, estando em estado normal de composição e conservação. No teste qualitativo para presença de hipocloritos e cloro não houve alteração de cor na solução, indicando não reagente para presença do analito no leite. Conclusão: Através dos ensaios realizados neste estudo prático, constatou-se que todas amostras analisadas, industrializadas ou in natura, estão apropriadas para consumo, posto que não apresentaram quaisquer tipos de fraudes nos aspectos analisados por este trabalho.
Como Citar
Nyedson Moura de Gois, J. ., de Oliveira Morais, C. C. ., & Eugênia Nunes, L. . (2020). ANÁLISE BROMATOLÓGICA DE LEITE NO MUNICÍPIO DE MOSSORÓ/RN. Revista Multidisciplinar Em Saúde , 1 (1), 7. Recuperado de https://editoraime.com.br/revistas/rems/article/view/92
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