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Effect of food preparation using naturally-contaminated groundwater from La Pampa, Argentina: Estimation of elemental dietary intake from rice and drinking water

Jaafar, Maisarah, Marcilla, AL, Felipe-Sotelo, M and Ward, Neil (2017) Effect of food preparation using naturally-contaminated groundwater from La Pampa, Argentina: Estimation of elemental dietary intake from rice and drinking water Food Chemistry, 246. pp. 258-265.

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Abstract

Water from La Pampa, Argentina, was used for washing and cooking rice to examine the in-situ impact of using naturally-contaminated water for food preparation on the elemental dietary intake. Whilst washing with the control tap water (28 g/L As) reduced the concentration of As in rice by 23%, the use of different well waters (281-1144 g/L) increased As levels significantly (48-227%) in comparison with the original concentration in the rice (0.056 µg/g). Cooking the rice at a low water-to-rice ratio (2:1) using modern methods increased the levels of As in the cooked samples by 2-3 orders of magnitude for both pre-washed and un-washed rice. Similar trends were observed for vanadium. Although the levels of manganese, iron, copper, zinc and molybdenum in rice were reduced during washing and cooking for most water samples, the molybdenum concentration in the cooked rice doubled (2.2-2.9 µg/g) when using water containing >1 mg/L Mo.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Jaafar, Maisarahm.jaafar@surrey.ac.ukUNSPECIFIED
Marcilla, ALUNSPECIFIEDUNSPECIFIED
Felipe-Sotelo, MUNSPECIFIEDUNSPECIFIED
Ward, NeilN.Ward@surrey.ac.ukUNSPECIFIED
Date : 7 November 2017
Identification Number : 10.1016/j.foodchem.2017.11.019
Copyright Disclaimer : © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Arsenic, Vanadium, Molybdenum, Rice, Drinking Water, Washing, Cooking, Dietary intake
Depositing User : Melanie Hughes
Date Deposited : 29 Nov 2017 08:54
Last Modified : 29 Nov 2017 08:54
URI: http://epubs.surrey.ac.uk/id/eprint/845059

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