Abstract
Contamination of rice by cadmium (Cd) is threatening a large population in China. In this study, we report that soaking rice grains in a hydrochloric acid (HCl) solution can remove Cd to a desirable extent. The results indicated that the degree of Cd removal was up to 45%∼85% at different soaking times and concentrations of HCl (0.06 M ∼ 0.18 M), which was found to be logarithmically correlated with the reaction time at the optimized liquid–solid ratio of 1:2. Three HCl concentration-dependent mathematical models were established, which revealed various optimal soaking conditions depending on the initial Cd contamination. Four Cd-contaminated rice grain samples with different degrees of contamination were then tested based on the mathematical models, and the final Cd content was reduced to an acceptable extent. Moreover, the physicochemical and food properties of rice flours and rice grains after Cd removal were evaluated to highlight their potential applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
