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Related Experiment Videos

Validating the analytical methodologies for determining some important trace elements in food consumed in India.

Deo Das Jaiswal1, Harmider Singh Dang, Suma Nair

  • 1Internal Dosimetry Division, Bhabha Atomic Research Centre, BARC Hospital, Mumbai, India.

Food and Nutrition Bulletin
|October 5, 2002
PubMed
Summary

Indian diets provide lower daily intakes of essential trace elements like cobalt and iron compared to international standards. This study quantifies these differences for eight key elements in Indian food.

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Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Human Nutrition

Background:

  • Understanding elemental intake is crucial for assessing nutritional status and potential health risks.
  • Dietary patterns in India vary significantly, necessitating region-specific elemental intake assessments.
  • International comparisons require standardized analytical methods for accurate data.

Purpose of the Study:

  • To develop and validate instrumental and radiochemical neutron activation analysis (INAA and RNAA) techniques.
  • To determine concentrations of eight key elements (Fe, Zn, Co, Cs, Sr, Se, Th, Ca) in Indian foods.
  • To estimate daily dietary intake of these elements for a reference Indian man and compare with international data.

Main Methods:

  • Development and standardization of INAA and RNAA methods for elemental analysis.

Related Experiment Videos

  • Analysis of 20 diverse diet samples reflecting Indian dietary patterns.
  • Calculation of geometric mean (GM) intake for eight elements based on analyzed food samples.

    • Main Results:

    • Estimated daily intake (mg/micrograms) for reference Indian man: Fe 15.9, Zn 8.6, Co 17.0, Cs 4.76, Sr 1.46, Se 52.4, Th 0.75, Ca 0.35.
    • Intakes were significantly lower than International Commission on Radiological Protection (ICRP) reference man (1.4 to 18.0 times lower).
    • Compared to world average, Indian intakes were comparable for iron and lower for zinc, selenium, and calcium (1.2 to 1.9 times lower).

    Conclusions:

    • The developed INAA and RNAA techniques are effective for elemental analysis in Indian food.
    • Reference Indian man's dietary intake of eight essential and trace elements is generally lower than international benchmarks.
    • Findings highlight potential nutritional considerations for the Indian population compared to global averages.