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Publication
Teores de vitaminas B1 e B2 em frutos e pescado consumidos pela população portuguesa: contributo para o estudo de dieta total
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Advisor(s)
Abstract(s)
As vitaminas são nutrientes indispensáveis ao crescimento e à manutenção
da vida. A maioria das vitaminas não é sintetizada pelo organismo humano
sendo fornecida apenas pela dieta. Os Estudos de Dieta Total (TDS) são
uma ferramenta de saúde pública utilizada para avaliar a exposição da
população a substâncias químicas, benéficas e prejudiciais, através da
alimentação, analisando os alimentos tal como consumidos. No âmbito do
estudo de dieta total piloto realizado em Portugal no período de 2014-2016,
foram avaliados os teores de tiamina e riboflavina em 31 amostras do grupo
Frutos e produtos à base de fruta e 25 amostras do grupo Peixe, produtos
da pesca, anfíbios, répteis e invertebrados, e estimado o contributo para a
Dose Diária de Referência (DDR). A metodologia analítica utilizada para a
quantificação das vitaminas foi a cromatografia líquida de alta resolução,
segundo as normas EN 14122 para a tiamina e EN 14152 para a riboflavina,
cumprindo os requisitos descritos na NP EN ISO/IEC 17025:2005. De
acordo com os resultados obtidos, tanto o pescado como a fruta poderão
ser fontes importantes de riboflavina. Em relação à tiamina, a maioria das
amostras estudadas apresenta valores inferiores a 4,5% da DDR.
Vitamins are essential nutrients for growth and maintenance of life and cannot be synthesized by the human body being only provided by diet. Total Diet Studies (TDS) is a public health tool used to assess the population's exposure to beneficial and harmful chemicals through food by analysing foods as consumed. In the context of total dietary pilot study carried out in Portugal in the period of 2014-2016, the contents of thiamine and riboflavin, in 31 samples from the fruit group and fruit products and 25 samples from the Fish group, fishery products, amphibians, reptiles and invertebrates were assessed and the contribution to the Recommended Dietary Intake (DDR) was estimated. The analytical methodology used for the quantification of vitamins was liquid high-resolution chromatography according to EN 14122 for thiamine and EN 14152 for riboflavin, as required in NP EN ISO / IEC 17025: 2005. According to the results, both fish and fruit may be important sources of riboflavin. Regarding thiamine, most of the samples studied presented values below 4.5% of DDR
Vitamins are essential nutrients for growth and maintenance of life and cannot be synthesized by the human body being only provided by diet. Total Diet Studies (TDS) is a public health tool used to assess the population's exposure to beneficial and harmful chemicals through food by analysing foods as consumed. In the context of total dietary pilot study carried out in Portugal in the period of 2014-2016, the contents of thiamine and riboflavin, in 31 samples from the fruit group and fruit products and 25 samples from the Fish group, fishery products, amphibians, reptiles and invertebrates were assessed and the contribution to the Recommended Dietary Intake (DDR) was estimated. The analytical methodology used for the quantification of vitamins was liquid high-resolution chromatography according to EN 14122 for thiamine and EN 14152 for riboflavin, as required in NP EN ISO / IEC 17025: 2005. According to the results, both fish and fruit may be important sources of riboflavin. Regarding thiamine, most of the samples studied presented values below 4.5% of DDR
Description
Keywords
Alimentação Saudável Composição dos Alimentos Teores de Vitaminas B1 e B2 Frutos Pescado Consumo Estudo de Dieta Total Saúde Pública Portugal
Pedagogical Context
Citation
Boletim Epidemiológico Observações. 2018 maio-agosto;7(22):17-20
Publisher
Instituto Nacional de Saúde Doutor Ricardo Jorge, IP