| Fe2+与胡敏酸的络合特征及其抗氧化性和生物有效性研究 |
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| 引用本文： | 王旭东,王虎,李利敏,张予林.Fe2+与胡敏酸的络合特征及其抗氧化性和生物有效性研究[J].植物营养与肥料学报,2004,10(3):267-271. |
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| 作者姓名： | 王旭东 王虎 李利敏 张予林 |
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| 作者单位： | 1.西北农林科技大学资源环境学院 陕西杨凌712100 |
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| 摘 要： | 在研究不同来源胡敏酸性质的基础上,研究了Fe2+与胡敏酸的络合特征以及络合态Fe2+的抗氧化性和生物有效性。结果表明,来源于土的胡敏酸属于A型,而来源于腐解秸秆、粪肥的胡敏酸属于RP型。A型胡敏酸与Fe2+络合能力大于RP型。HA-Fe2+络合物的络合稳定常数越大,络合物中Fe2+抗氧化性越强,玉米叶片中全铁含量也越高,但存在活性铁含量和全铁含量不一致现象。
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| 关 键 词： | 络合态Fe2+ 胡敏酸 抗氧化性 生物有效性 |
| 文章编号： | 1008-505X(2004)03-0267-05 |
| 修稿时间： | 2003年5月22日 |
Characteristics of complexes between iron and humic acids and the anti-oxidation and availability of chelated Fe2+ |
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| WANG Xu-dong,WANG Hu,LI Li-min,ZHANG Yu-lin.Characteristics of complexes between iron and humic acids and the anti-oxidation and availability of chelated Fe2+[J].Plant Nutrition and Fertilizer Science,2004,10(3):267-271. |
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| Authors: | WANG Xu-dong WANG Hu LI Li-min ZHANG Yu-lin |
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| Institution: | 1.Northwest Sci-Tech. University of Agriculture and Forestry;Yangling;Shaanxi 712100;China |
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| Abstract: | On the basis of studying the properties of humic acids from soil and decomposed corn stalk and manure such as pig manure and chicken manure, the characteristics of complexes between iron and humic acids and the anti-oxidation of chelated iron was researched. The results showed that humic acids from cumulic cinnamon soil were belong to type A, and humic acids from decayed organic materials were belong to type RP. The ability for complexing of humic acids of type A was stronger than that of type RP. The higher stability of the complexes was , the stronger anti-oxidation of chelated iron(Fe~(2 )) was. The availability of iron complexing with humic acids were higher than inorganic iron (FeSO_4). |
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| Keywords: | chelated Fe~(2 ) humic acid anti-oxidation bio-availability |
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