1. Comparative analysis of zinc, copper, cadmium, and arsenic accumulation in forage-grain rice: Implications for food safety and health risks.
- Author
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Wang Y, Huang S, Huo W, Li X, Shi X, Gao K, Zhao Y, Harrison MT, Zhang J, Song X, Zhao Q, and Peng T
- Subjects
- Humans, Animals, Edible Grain chemistry, Edible Grain growth & development, Edible Grain metabolism, Oryza chemistry, Oryza metabolism, Oryza growth & development, Arsenic analysis, Arsenic metabolism, Cadmium analysis, Cadmium metabolism, Zinc analysis, Zinc metabolism, Copper analysis, Copper metabolism, Food Safety, Food Contamination analysis
- Abstract
Forage-grain ratoon rice (FG-RR) systems, integrating grain and forage production, promise a sustainable approach to enhance food security and livestock development in marginal regions where ratoon rice (T-RR) is traditionally cultivated. Here, we quantified zinc (Zn), copper (Cu), arsenic (As), and cadmium (Cd) concentrations in ratoon crop grains from 23 rice varieties at four mowing stages (heading, milk-ripening, dry-ripening, and full maturity) of the main crop. Early mowing at the milk-ripening stage significantly reduced As levels (16.59-46.83 %) and increased Zn (0.61-18.21 %) and Cu (6.81-55.44 %) concentrations, improving nutritional quality. However, Cd levels were elevated (2.10-262.66 %) in FG-RR compared with T-RR. Notably, the impact of mowing stages on the metal concentrations was greater than that of rice varieties. These findings suggest that mowing at the milk-ripening stage enhances the safety and sustainability of FG-RR systems, ensuring improved nutrition and reduced As-related heavy health risks., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Ltd.)
- Published
- 2025
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