粮油食品科技

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加工精度对稻谷籽粒中重金属含量的影响
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Effect of processing accuracy on heavy metal content in paddy
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    研究了稻谷籽粒不同的组织结构中Cd、Pb、As的含量分布,以及不同加工精度对重金属去除率的影响。结果表明,研究样品中Pb的浓度最高,米糠层重金属含量最高。随着加工精度的增加,重金属去除率也随之增加,当碾米120 s后,As总去除率最高,为42.57%,而Cd和Pb的去除率分别为24.38%和41.38%。因此通过砻谷和提高碾米精度,可以去除稻谷中部分重金属。

    Abstract:

    The content distribution of Cd, Pb and As in different part of paddy kernel and the effect of different processing method on the removal rate of heavy metal was researched. The result showed that Pb was the metal with the highest content in the sample and the part with the highest content of heavy metal was rice bran layer. The removal rate of heavy metal increased with the improvement of processing precision. When the rice milling reached 120 s, the removal rate of As was the highest which was 42.57%, while that of Cd and Pb were 24.38% and 41.38%. In the result, the heavy metals in rice can be removed by rice milling and improving rice milling precision.

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丁哲慧,鞠兴荣,袁建,何荣.加工精度对稻谷籽粒中重金属含量的影响[J].粮油食品科技,2016,24(2):21-23.

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  • 在线发布日期: 2016-04-25
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