African Journal of
Biochemistry Research

  • Abbreviation: Afr. J. Biochem. Res.
  • Language: English
  • ISSN: 1996-0778
  • DOI: 10.5897/AJBR
  • Start Year: 2007
  • Published Articles: 418

Article in Press

A comparative study on determination of selected essential and heavy metals from Avocado, Mango and Banana with their supporting soil samples cultivated in Yeki Woreda, Southwest Ethiopia

Berhe Akele, Shisho Haile

  •  Received: 30 October 2019
  •  Accepted: 18 December 2019
The study was focused on the quantitative determination of some selected essential and heavy metals in avocado, banana and mango samples with their respective supported soil samples collected from 8 kebeles of Yeki woreda. The investigated metals were Ca, Cd, Cr, Cu, Ni, Pb and Zn. Acid digestion was used for sample digestion. Flame atomic absorption spectrometer (FAAS) was used to determine the concentration of metals. According to the analysis, Cd and Ni were not detected in all samples while Cr was not detected in avocado and mango fruit samples. Avocado fruit contains: 91mg/kg Ca, 17mg/kg Cu, 5.9mg/kg Zn and 0.05mg/kg Pb. Banana fruit contains: 48mg/kg Ca, 9mg/kg Cr, 42mg/kg Cu, 14.18% Pb and 5.9mg/kg Zn, Mango fruit contains: 86mg/kg Ca, 14mg/kg Cu, 0.054mg/kg % Pb and 5.7mg/kg Zn. Mango plants were highly absorbed Ca and Cu while banana plants highly absorbed Cr, Pb and Zn minerals. All fruits can deliver appreciable amount of Ca and Cu while Pb in all fruits. At the 0.05 level, the means of the metals in both fruit and soil samples were significantly different separately.

Keywords: major-essential metals, minor-essential metals, non-essential metals, soil, fruit