Calcium bioavailability in leafy vegetables and medicinal plants
Keywords:
fluoride, fluorosis, bioavailability, calcium, leafy vegetables, medicinal plantsAbstract
Large quantities of fluoride intake are the primary reason for the prevalence of dental and skeletal fluorosis. Absorption of fluoride is 100% when it is administered through drinking water without food. But the fluoride absorption reduced from 50% to 80% when it is administered along with diet. Mostly diets with high calcium with rich in bioavailability reduce the fluoride absorption from the gastrointestinal tract by forming calcium fluoride insoluble complex. Apart from drinking water, milk and milk products; commonly available leafy vegetables and medicinal plants are the good sources for dietary calcium. Hence this study is proposed to account the total and bioavailable calcium level in various leafy vegetables and medicinal plants. For this purpose, eighteen leafy vegetables and five medicinal plants are collected and analyzed for total and bio-available calcium levels. Total and bio-available calcium levels are determined through wet digestion and in-vitro miller method respectively by the use of atomic absorption spectrophotometer. Among the selected leafy vegetables dwarf-copper, block-nightshade, curry, cabbage, drumstick and mint leaves contain high total calcium with rich in bioavailability.
Downloads
References
Allen, L.H. (1982). Calcium bioavailability and absorption: a review. American Journal of Clinical Nutrition, 35, 783 – 808.
Brzezinski, E. (2002). Durning, A.M., Grasse, B., Fusselman, E and Ciaraldi, T., University of California, 17-29.
Cerklewski, F.L. (1997). Fluoride bioavailability, Nutrition Research, 17(5), 907–929.
Ekambaram, P. Paul, V. (2001). Calcium preventing locomotor behavioral and dental toxicities of fluoride by decreasing serum fluoride level in rats. Environmental Toxicology and Pharmacology, 9, 141-146.
Gueguen, L., Agr, M and Alain Pointillart, D.V.M., (2000). Mineral bioavailability and bone mineral contents in pigs given calcium carbonate postprandially. American Journal of Clinical Nutrition, 19, 119-136.
Harrison, P.T.C. (2005). Fluoride in water: a UK perspective. Journal of Fluorine Chemistry, 126(11–12), 1448–1456.
Ismail, A., Horner, H.T., Palmer, R.G., Reddy M.P and Massey, L. (2005). Oxalate level in vegetables. Journal of Agricultural and Food Chemistry, 53, 5670-5674.
Jackson, P.J., Harvey, P.W and Young, W.F. (2002). Chemistry and bioavailability aspects of fluoride in drinking water. Report No.05037, Henley Road, Medenham, Marlow, Bucks, SL7 2HD: WRC-NSF Ltd 27, 5-9.
Mahoney, A.W., Holbrook, R.S & Hendricks, D.G. (1975). Nutrition metabolism, 18, 310-317.
Miller, D.D., Schricker, B.R., Rasmussen, R.R & Campen, D.V. (1981). An in vitro method for estimation of iron availability from meals. American Journal of Clinical Nutrition, 34, 2248–2256.
Narasinga Rao., B.S & Prabhavathi, T. (1978). An in vitro method for predicting the bioavailability of iron from foods. American Journal of Clinical Nutrition, 31, 169-175.
Norwalk, CT.
Perkin Elmer. (2000). Manual of Perkin Elmer Atomic Absorption Spectrophotometer AA100.,
Susheela, A.K. (2003). Treatise on fluorosis, 2nd edn. Fluorosis Research & Rural Development Foundation, Delhi, India, 137.
Titchenal, C.A & Dobbs, J.C., (2007). Journal of Food Composition and Analysis, 20, 717–724.
WHO (World Health Organization), (2002). Environmental Health Criteria. 227: Fluorides, Geneva, 1-251.
Published
How to Cite
Issue
Section
Copyright (c) 2022 International journal of health sciences
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Articles published in the International Journal of Health Sciences (IJHS) are available under Creative Commons Attribution Non-Commercial No Derivatives Licence (CC BY-NC-ND 4.0). Authors retain copyright in their work and grant IJHS right of first publication under CC BY-NC-ND 4.0. Users have the right to read, download, copy, distribute, print, search, or link to the full texts of articles in this journal, and to use them for any other lawful purpose.
Articles published in IJHS can be copied, communicated and shared in their published form for non-commercial purposes provided full attribution is given to the author and the journal. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
This copyright notice applies to articles published in IJHS volumes 4 onwards. Please read about the copyright notices for previous volumes under Journal History.
