Density alteration of nutrient elements in rice grains of a low phytate mutant

文献类型： 外文期刊

第一作者： Ren, Xue-Liang

作者： Ren, Xue-Liang;Liu, Qing-Long;Fu, Hao-Wei;Wu, Dian-xing;Shu, Qing-Yao

作者机构：

关键词： low phytic acid;mineral nutrient;mutation;Oryza sativa L.

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2007 年 102 卷 4 期

页码：

收录情况： SCI

摘要： The amount and distribution of major nutritionally relevant elements was determined in the grains of a low phytate rice (Oryza sativa L.) mutant line (HIPil) and its parent variety Xieqingzao (XQZ). The concentration of phytate P (PA-P) was significantly reduced in HIM grains. On brown rice basis, HIM had a content of PA-P about 58.4% that of XQZ, while total P levels were not significantly different between the mutant and its parent. Significant location effects were observed on the amount of the major elements, i.e., Ca, K, Mg, Fe, Zn, in various parts of grains of both HIPi1 and XQZ. In milled rice, larger amounts of these elements were found, consistently and significantly across all three locations, in HIPi I than XQZ, at rates on average of 32.6%, 31.2%, 44.8%, 52% and 71.3%, respectively. The results showed that the low phytate mutation could not only potentially increase the bioavailability but also the amount of most important micronutrient elements, i.e., Fe, Zn and Ca, in the edible part of rice grains, and thus provide an important added-value to this mutation. (c) 2006 Elsevier Ltd. All rights reserved.

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