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- Title
Total Diet Study: Mg and Mn content estimation of a Market Basket of São Paulo state (Brazil) by Instrumental Neutron Activation.
- Authors
Avegliano, Roseane; Maihara, Vera
- Abstract
Total Diet Studies (TDS) have been carried out to estimate dietary intakes of the essential and toxic elements for a large-scale population over a specific period of time. In this study, the TDS was based on the evaluation of food representing a Market Basket (MB), which reflected the dietary habits of the São Paulo State population, corresponding to 72 % of the average food consumption for the state of São Paulo. In the present Total Diet Study, magnesium and manganese concentrations were determined in 30 of the most consumed food groups of a MB of São Paulo State, Brazil. Instrumental Neutron Activation Analysis (INAA) has been successfully used on a regularly basis in several areas of nutrition and foodstuffs. Element concentrations were determined by INAA in freeze-dried samples and ranged in mg kg. Mg 41.4 (fats)-5287 (coffee) and Mn 0.12 (prime grade beef)-32.9 (coffee). The average daily Mg and Mn intake was calculated by multiplying the concentration of each element in each table-ready food group by the respective weight (g day) of the food group in the MB and adding the products from all food groups. The results of daily dietary intakes in this study were: Mg 174.8 and Mn 1.34 mg day. Theses values were lower than the adequate intake (AI) proposed by the Food and Nutrition Board of the Institute of Medicine (USA National Academy) for adults. The low levels of Mg and Mn intakes presented in this TDS are probably due to the fact that MB of this study represented only 72 % of the weight of the most consumed household foods of São Paulo State.
- Subjects
BRAZIL; FOOD consumption; FOOD habits; DIET; MANGANESE isotopes; MAGNESIUM isotopes; MARKET basket analysis; NUCLEAR activation analysis
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2014, Vol 299, Issue 1, p781
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-013-2699-0