Variations in elemental composition of rice (Oryza sativa L.) with different cultivation areas of Ethiopia.

ABSTRACT: Variations in the elemental composition of rice (Oryza sativa L.) grains, and the link with the growing soil, were investigated across the major production areas of Ethiopia (Fogera, Metema and Pawe). The elements (Ca, Mg, Fe, Zn, Mn, Cu, Ni, Cr, Cd and Pb) were determined by using flame atomic absorption spectroscopy (FAAS), after digesting samples through an optimized procedure with respect to volumes of reagents (HNO3, HClO4 and H2O2), temperature and time. The accuracy of the FAAS method was in the range of 87‒113%. The most abundant element in rice was Mg (414‒561 mg kg-1) followed by Fe (49.4‒168 mg kg-1), while in soil was Fe (11674‒12917 mg kg-1) followed by Mg (619‒709 mg kg-1). Chromium, Cd and Pb were all below the limit of quantitation of the method. The concentrations of the e

SUBMITTER: Desalew A 

PROVIDER: S-EPMC10586638 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature