期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 186, 期 1, 页码 236-239出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.10.120
关键词
Dietary fibers; Binding capacity; Toxic elements; Cholesterol; Sodium cholate
资金
- Department of Education of Guangdong Province [CGZHZD0709]
- Guangzhou Municipal Government [2003Z3-E0061]
Water-soluble dietary fibers from apple peels and water-insoluble dietary fibers from wheat bran and soybean-seed hull were used to evaluate their binding capacities for four toxic elements (Pb, Hg, Cd, and As), lard, cholesterol, and bile acids. The water-soluble dietary fibers showed a higher binding capacity for three toxic cations, cholesterol, and sodium cholate; and a lower binding capacity for lard, compared to the water-insoluble ones. A mixture of the dietary fibers from all samples - apple peels, wheat bran, and soybean-seed hull - in the ratio 2:4:4 (w/w) significantly increased the binding capacity of water-insoluble dietary fibers for the three toxic cations. cholesterol, and sodium cholate; moreover, the mixture could lower the concentrations of Pb2+ and Cd+ in the tested solutions to levels lower than those occurring in rice and vegetables grown in polluted soils. However, all the tested fibers showed a low binding capacity for the toxic anion, AsO33-. (C) 2010 Published by Elsevier B.V.
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