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期刊论文

Determination of selenium concentration in rice and the effect of foliar application of Se-enriched fertiliser or sodium selenite on the selenium content of rice

胡秋辉Qiuhui Hu* Licheng Chen Juan Xu Yanling Zhang and Genxing Pan

J Sci Food Agric 82: 869-872,-0001,():

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摘要/描述

Atomic fluorescence spectrophotometry was used to determine the selenium (Se) concen-tration in 30 rice products of different species from Southern China. The Se level ranged from 0.015 to 0.0461μgg-1. Considering the average daily individual consumption of rice products in Southern China, the average dietary intake of Se supplied by this source is only 6-18μg day-1 for an adult. This low Se intake from rice products is mainly responsible for the low total Se intake of inhabitants in Southern China. Foliar spraying ofSe-enriched fertiliser or sodium selenite with 14-18g Seha-1 in the heading stage of rice growth increased the Se content to 0.178-0.421μgg1 in rice products. The concentration and amount ofSe-enriched fertiliser can be varied to achieve an optimum concentration of Se in rice products. The authors suggest that these Se-enriched rice products can contribute an increase in Se intake of 50-100μgday-1 on average if their Se concentration is controlled in the region of 0.15-0.50μg g-1.

【免责声明】以下全部内容由[胡秋辉]上传于[2005年03月04日 18时04分36秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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