Scholars Bulletin (SB)
Volume-6 | Issue-06 | 164-173
Subject Category: Chemistry
Analysis on Some Essential and Non-Essential Metals in Bulla of Enset (E. Ventricosum) with Supporting Soil sample in West Showa Zone
Teressa Bedada, Alemayehu Abebaw
Published : June 30, 2020
Abstract
The aim of this study was to investigate the level of essential and non essential metals in Bulla of Ensete ventricosum and soil samples in West Showa Zone. K and Na were analyzed using FAES, Ca and Mg were determined complecometric titration method and the other metals with FAAS after appropriate quality control measures were undertaken to verify and maintain the quality of the data generated. The optimized wet digestion method for Bulla and soil analysis was found effective for all of the minerals and as it was evaluated through the recovery experiment, a good percentage recovery 96.85% (Fe in Bulla) to 112% (Pb in soil) was obtained for the minerals identified. The results of this study showed that the average concentrations were ranged in order decreasing in (mgkg-1) 3366.28(K) >1881.57(Na) > 593.44(Mg) > 862.85(Ca) > 55.68(Fe) > 6.99(Zn)>3.09(Cu)>2.96(Mn). Cd and Pb were not detected for Bulla and 3521.11(K)>3497.85(Mg)>3461.59(Fe)>3294.93(Ca)>1096.89(Na)>(93.99(Mn)>16.74(Zn)>3.77(Cu)>0.26(Cd) for soil sample and Pb was not detected. The concentrations of the metals were also compared with recommended maximum permissible limits and some international reports; and found to be in a good agreement indicating no exposure risk of using the bulla and corm of Ensete ventricosumunder the current situation. Statistical test of significance using ANOVA revealed that there were significant differences (P<0.05) between the values of metals in the bulla and soil samples obtained from all the sampling sites except Zn and Fe for bulla and Ca in soil.