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Title: Cadmium bioavailability from vegetable and animal-based foods assessed with in vitro digestion/caco-2 cell model
Authors: Rodjana Chunhabundit
Songsak Srianujata
Ahnond Bunyaratvej
Ratchanee Kongkachuichai
Jutamadd Satayavivad
Sming Kaojarern
Mahidol University
National Research Council of Thailand
Keywords: Medicine
Issue Date: 1-Feb-2011
Citation: Journal of the Medical Association of Thailand. Vol.94, No.2 (2011), 164-171
Abstract: Background: Chronic dietary cadmium (Cd) exposure results in kidney dysfunction and decrease in bone mineral density. Objective: To determine and compare the bioavailability of Cd from vegetable and animal-based foods. Material and Method: Caco-2 cells were exposed to Cd in boiled pig kidney, ark shell, kale, raw kale, mixed boiled pig kidney with raw kale and CdCl 2 after in vitro digestion. Then cellular Cd uptake from the digests and reference CdCl 2 solution was measured by atomic absorption spectrometry. Results: Cd bioavailability from animal-based foods was higher than that from vegetable-based foods. In addition, raw kale exhibited an inhibitory effect on Cd bioavailability when mixed with boiled pig kidney. However, Cd in kale was increasingly absorbed after boiling. Conclusion: Cd binding to different molecular species, other food components in vegetable and animal-based foods, food combination, as well as cooking processes influenced the uptake of dietary Cd. A relative bioavailability factor accounted for the food matrix might be necessary for exposure assessment and consequently for estimation and prevention of the risk of dietary Cd.
ISSN: 01252208
Appears in Collections:Scopus 2011-2015

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