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  1. Fluoride and silicon content of foods from normal and endemic fluorotic areas in India.

    Article - En anglais

    Samples of rice (Oryza sativa, n=36), sorghum (Sorghum vulgare, n=19), and bajra (Pennisetum typhoideum, n=18) were collected from normal and endemic fluorotic areas located in the state of Andhra Pradesh, India.

    Samples of ragi (Eleusine coracana, n=5), which were available only in a normal area, were also obtained.

    Fluoride and silicon content of these foods was measured.

    The concentrations (means ± SD) of fluoride and silicon in the above foods, expressed as mg/kg, are as follows.

    Of the cereals and millets from normal areas, ragi contained the highest concentration of both fluoride (0.8 ± 0.41) and silicon (2000 ± 500).

    Fluoride levels were similar in rice (0.16 ± 0.05), sorghum (0.15 ± 0.04), and bajra (0.20 ± 0.09).

    Silicon contents of sorghum (300 ± 290) and bajra (400 ± 110) were significantly higher than that of rice (90 ± 31) and lower than that of ragi (2000 ± 500).

    Between bajra and sorghum, the former contained significantly higher levels of silicon.

    Samples of rice and sorghum grown and consumed in the fluorotic area had significantly higher (P<0.02 and P<0.001) concentration of fluoride than those collected from the normal area.

    The values were 0.4 ± 0.32 in rice and 0.4+0.16 in sorghum from the fluorotic area and 0.16 ± 0.05 in rice and 0.15 ± 0.04 in sorghum from the normal area.

    Silicon contents of rice and bajra (mg/kg) grown in the fluorotic area were 200 ± 150 and 600 ± 240, respectively.

    These values were significantly higher (P<0.02, P<0. (...)

    Mots-clés Pascal : Silicium, Fluor, Toxicité, Riz, Sorgho, Millet, Aliment, Inde, Asie, Teneur, Céréale, Fluorose, Elément minéral, Homme, Mil

    Mots-clés Pascal anglais : Silicon, Fluorine, Toxicity, Rice, Sorghum (food), Millet, Food, India, Asia, Content, Cereal, Fluorosis, Inorganic element, Human

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 97-0267758

    Code Inist : 002B03H. Création : 15/07/1997.