Abstract
The study aims to seek the dietary strategies to reduce the bioaccessibility of Cd and As in contaminated rice. A total of 12 selected food matrices were assayed by using the in vitro gastrointestinal digestion models. The results showed that tomato, carrot, water spinach, and spinach reduced the solubility of Cd by 45–78%, 50–71%, 53–70%, and 45–71%, respectively. Meanwhile, tomato, carrot, potato, and sweet potato reduced the solubility of As by 53–79%, 50–80%, 40–71%, and 36–76% in aqueous solution, respectively. In both gastric and gastrointestinal phases, Cd and As bioaccessibility decreased as the amount (100, 200, or 400 mg) of food matrices increased (except for As in water spinach). These results suggested that the uses of some foodstuffs may be a good dietary strategy to reduce Cd and As bioaccessibility, although in vivo studies are required to confirm their suitability.
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Funding
This research work was financially supported by the Key project of Science and Technology Program of Guangzhou (No. 201803030035), the National Natural Science Foundation of China (Nos. 41301571 and 31670513), the R & D program of Guangdong Provincial Department of Science and Technology (No. 2016A020221023), and the National Key Technologies R&D Program of China (2015BAD05B05).
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Zhuang, P., Sun, S., Su, F. et al. Dietary strategies to reduce the oral bioaccessibility of cadmium and arsenic in rice. Environ Sci Pollut Res 25, 33353–33360 (2018). https://doi.org/10.1007/s11356-018-3237-y
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DOI: https://doi.org/10.1007/s11356-018-3237-y