期刊论文

中文

粮食科技与经济

1007-1458

2018

43

1

110-113

10.16465/j.gste.cn431252ts.20180125

本校为第一机构

水稻是一种镉蓄积作物,在镉污染土壤中,镉由水稻根部吸收并有少量向水稻地上部分转移从而进入到人们食用的稻米籽实中。在稻米籽实的各结构中,镉浓度的排序为米糠>胚>胚乳>稻壳,但在镉的总含量上胚乳占据绝大优势。稻米籽粒中镉主要是和大米蛋白结合,含量10%左右的大米蛋白积蓄了60%以上的镉。目前常用的镉米降镉方法大致可分为碾米精加工、溶剂浸提、组分分离、微生物发酵四大类,其中碾米精加工方法简单,但降镉效果有限,只适用于镉含量超标较低的大米;溶剂浸提法降镉效果好但需满足一定工艺条件且对大米品质有影响;组分分离法降镉效果好,但后续产品利用的只有大米淀粉;微生物发酵法降镉效果优良...

Rice is a cadmium-intensive crop. In cadmium-contaminated soil,cadmium is absorbed by the roots of rice and transferred to the ground part of the rice into the rice seed. In the structure of rice seed,the order of cadmium concentration was rice bran〉 embryo〉 endosperm〉 rice husk,but the total content of cadmium on the endosperm occupies a great advantage. Cadmium in rice grain is mainly combined with rice protein,the content of about 10% of the rice protein accumulated more than 60% of the cadmium. At present,the commonly used cadmium reduct...