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QuantificaĆ§Ć£o de iodo em alimentos consumidos em Portugal: resultados preliminares
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Advisor(s)
Abstract(s)
O iodo Ć© um oligoelemento indispensĆ”vel para a sĆntese das hormonas da
tiroide. A alimentaĆ§Ć£o Ć© a maior fonte natural de iodo. Assim, o principal
objetivo deste trabalho foi a determinaĆ§Ć£o de iodo em alimentos como consumidos
e representativos da dieta portuguesa. A metodologia escolhida
para a quantificaĆ§Ć£o deste nutriente foi a espectrometria de massa acoplada
ao plasma indutivo (ICP-MS). Analisaram-se seis grupos de alimentos:
peixes, mariscos e bivalves, leite e derivados, vegetais, fruta e refeiƧƵes
compostas. Os grupos do pescado (peixe, marisco e bivalves) foram os
que apresentaram concentraƧƵes de iodo mais elevados, com um valor
mĆ©dio de 114 Ī¼g/100g. Os laticĆnios sĆ£o tambĆ©m uma fonte importante
para suprir o aporte diĆ”rio de iodo (150 Ī¼g/dia) apresentado valores mĆ©dios
de 22 Ī¼g/100g. Os resultados permitem concluir que em Portugal uma alimentaĆ§Ć£o
rica em pescado e lacticĆnios supre a dose diĆ”ria recomendada
de iodo para um adulto saudƔvel.
Iodine is an essential trace element for the synthesis of thyroid hormones. Food is the largest natural source of iodine. Therefore, the main objective of this work was the determination of iodine in foods as consumed and representative of the Por tuguese diet. The methodology selected for the quantification of this nutrient was inductively coupled plasma mass spectrometry (ICP-MS). Six groups of food were analyzed: fish, seafood and shellfish, dairy products, vegetables, fruit and meals. Seafood groups (fish, shellfish and bivalves) showed the highest concentrations of iodine, with an average of 114 Ī¼g/100g. Dairy products are also a major source to supply the daily intake of iodine (150 Ī¼g/day) presented average values of 22 Ī¼g/100g. The results show that in Portugal a diet rich in fish and dairy products supplies the recommended daily intake of iodine for a healthy adult.
Iodine is an essential trace element for the synthesis of thyroid hormones. Food is the largest natural source of iodine. Therefore, the main objective of this work was the determination of iodine in foods as consumed and representative of the Por tuguese diet. The methodology selected for the quantification of this nutrient was inductively coupled plasma mass spectrometry (ICP-MS). Six groups of food were analyzed: fish, seafood and shellfish, dairy products, vegetables, fruit and meals. Seafood groups (fish, shellfish and bivalves) showed the highest concentrations of iodine, with an average of 114 Ī¼g/100g. Dairy products are also a major source to supply the daily intake of iodine (150 Ī¼g/day) presented average values of 22 Ī¼g/100g. The results show that in Portugal a diet rich in fish and dairy products supplies the recommended daily intake of iodine for a healthy adult.
Description
Keywords
Iodo ComposiĆ§Ć£o dos Alimentos CarĆŖncia de Iodo ICP-MS AlimentaĆ§Ć£o e NutriĆ§Ć£o SaĆŗde PĆŗblica Portugal
Pedagogical Context
Citation
Boletim EpidemiolĆ³gico ObservaƧƵes. 2016 maio-agosto;5(16):30-32
Publisher
Instituto Nacional de SaĆŗde Doutor Ricardo Jorge, IP