Daily dietary intake of trace elements of radiological and nutritional importance by the adult Indian population

Citation
Hs. Dang et al., Daily dietary intake of trace elements of radiological and nutritional importance by the adult Indian population, J RAD NUCL, 249(1), 2001, pp. 95-101
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
0236-5731 → ACNP
Volume
249
Issue
1
Year of publication
2001
Pages
95 - 101
Database
ISI
SICI code
0236-5731(200107)249:1<95:DDIOTE>2.0.ZU;2-O
Abstract
The concentrations of eleven trace elements: Ca, Co, Cr, Cs, Fe, I, K, Se, Sr, Th and Zn were determined in total diet samples and also in individual food materials which constitute the typical Indian diet. Instrumental neutr on activation analysis (INAA) and radiochemical neutron activation analysis (RNAA) were employed for the analysis. Whereas the elements Fe, Co, Cr, Se and Zn are important from the view point of their role in nutrition, the e lements Cs, K, Sr and Th are of importance in radiation protection, and Ca and I have dual importance: both in nutrition as well as in radiation prote ction. Based on the analysis of twenty total diet samples, prepared as per the data on the dietary intake pattern of four provinces of India and the d ata on intake pattern of an average adult Indian, the geometric mean (GM) i ntake of various elements was estimated to be 0.33 g (0.2-0.67) for Ca, 16. 5 mug (8.3-31.1) for Co, 52.3 mug (35.1-131) for Cr, 4.7 mug (2.79-11.8) fo r Cs, 94.6 mug (60.6-201) for I, 1.90 g (1.25-3.54) for K, 1.13 mg (0.78-2. 97) for Sr, 0.76 mug (0.45-1.66) for Th, 15.9 mg (10.2-34.3) for Fe, 56.3 m ug (27.6-105.3) for Se and 8.6 mg (5.1-16.7) for Zn. Some of the important individual food materials, such as cereals, pulses, milk, vegetables etc., were also analysed for these elements to observe the contributions of the i ndividual food materials to their daily dietary intake. The results of the analysis showed that in the case of Cs, K, Sr, Th, Fe, Zn and Co, almost 50 % of the daily dietary intake of the above stated elements is contributed b y cereals and pulses. In the case of Ca however, significant amount is cont ributed by milk and in case of I, iodised salt could make significant contr ibution. The data collected so far, for Se and Cr, was not sufficient to dr aw any definite conclusion.