AI Article Synopsis
- The study examined cadmium (Cd) and lead (Pb) levels in 67 brands of rice from central Iran, using acid digestion and atomic absorption spectrometry for analysis.
- Results showed Cd concentrations ranged from 0.0378 to 0.1225 ppm and Pb concentrations ranged from 0.0405 to 0.1281 ppm, both below the food safety limits of 0.2 ppm.
- The findings suggest that there are no health risks associated with consuming these rice brands regarding Cd and Pb, as weekly intake is within safe limits established by WHO/FAO.
Article Abstract
The aim of this study was to investigate the cadmium (Cd) and lead (Pb) content of several commercially available brands of rice grains (Oryza sativa) in central Iran. A total of 67 samples of the most widely consumed brands of rice grains were purchased from local bazaar markets in Shahrekord, Iran. The first step, grains of raw rice were digested by acid digestion method and then were analyzed by atomic absorption spectrometer. The results showed that Cd concentration in rice grains ranged from 0.0378 to 0.1225 ppm dry weight and its average concentration was 0.062 ± 0.019 ppm and Pb content ranged from 0.0405 to 0.1281 ppm dry weight and its average concentration was 0.068 ± 0.0185 ppm. Cd and Pb concentrations in the sampled rice grains were lower in comparison with their upper limits (0.2 and 0.2 ppm for Cd and Pb, respectively) approved by food sanitary standard. Therefore, it can be concluded that there is no health problems due to the consumption of brands of rice grains, for these two elements. The results indicated that weekly intake of Cd and Pb from rice grains was below the provisional tolerable weekly intakes recommended by WHO/FAO.
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