Quantifying Micronutrient (Fe) Content in Super Elite Accession at Varying Level of Polishing by Using X-Ray Fluorescence in Rice Grain Grownunder Aerobic Condition

摘要

The research aimed to compare different genotypes of aerobic rice for their iron content and percentage of losses among different genotypes, from brown to white rice. Quantification of Fe was estimated by using X-Ray fluorescence spectroscopy, in brown rice, white rice, 5 per cent bran and 10 per cent bran. A significant difference was observed in loss of micron utrients from brown to white rice. Jeerigesanna had highest Fe content in brown rice and ARB-6 had highest Fe content in polished rice. Azucena had lowest Fe content in brown and white rice, respectively. White rice was deficient in Fe. During the polishing process almost entire aleurone and most part of the embryo is removed which are the main store house for major micronutrients. It is estimated that more than 50 per cent of micronutrients are lost during polishing process. There was a greater quantitative and cumulative loss in Fe content, suggesting that Fe is present comparatively more in the outer aleurone layer.