International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 1
First page : (694) Last page : (702)
Article doi: http://dx.doi.org/10.18782/2320-7051.2588

Determination of Effect of Different Levels of Polishing on Zinc Content in Rice Grains

Krupa*, K. N., Ningaraj Dalawai, Shashidhar, H. E. and Vijaykumara Swamy, H. V.
Department of Plant Biotechnology, UAS, GKVK, Bengaluru
*Corresponding Author E-mail: krupapoo@gmail.com
Received: 13.02.2017  |  Revised: 24.02.2017   |  Accepted: 25.02.2017  

 ABSTRACT

Concern over the food chain transfer of zinc (Zn) is increasing because of its importance in human health. Increasing the micronutrient content of staple crops or bio-fortification will greatly improve human nutrition on a global scale. In this study, five elite lines and four checks differing for both grain Zn and Fe content were used in this study. The effect of polishing on loss of micronutrient in rice grains were quantified using different rice accessions. Polishing was done at two levels i.e. 5 % and 10 % in this samples Zn content was estimated using XRF in both brown rice and white rice. The results showed that per cent loss of Zn was more in 10 % polishing than in 5 % polishing. Hence, Zn content was reduced after polishing because Zn content is more in aleurone layer than in the endosperm. Among the nine genotypes AM-65 had highest Zn even after polishing, suggesting minimum loss of Zn content in these elite lines while AM-72 and ARB6 manifested moderate Zn content among the chosen genotypes.

Key words: Biofortification, Micronutrients, Oryza sativa L., Zinc deficiency

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Krupa, K. N., Dalawai, N., Shashidhar, H. E. and Swamy, H. V., Determination of Effect of Different Levels of Polishing on Zinc Content in Rice Grains, Int. J. Pure App. Biosci.5(1): 694-702 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2588