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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2689

Title: DETERMINATION OF THE LEVELS OF ESSENTIAL AND NON-ESSENTIAL METALS IN COMMERCIALY AVAILABLE ETHIOPIAN RED PEPPER (Capsicum Annuum)
Authors: MOLLA, TEFERA
Advisors: Prof. B.S. Chandravanshi
Keywords: Macro and micro (trace) metals
Pepper, pungency
AAS (Atominc absorption
Copyright: Jun-2009
Date Added: 6-May-2012
Publisher: AAU
Abstract: The concentrations of essential (Ca, Co, Cr, Cu, Fe, Mn, Ni, Zn) and non-essential metals (Cd and Pb) in Ethiopian red pepper samples were determined because such studies have not been reported in the literature. The pepper samples were collected from Alaba, Mareko and Addis Ababa open market (Merkato) and analyzed for metals using flame atomic absorption spectroscopy after wet digestion. The metal concentrations in the samples were found to be 161-222 μg/g, 1.02-2.24 μg/g, 27.5-73.6 μg/g, 2.12-3.71 μg/g, 99.5-157 μg/g, 9.72-18.95 μg/g, 2.71-6.68 μg/g and 20.8-58.4 μg/g for calcium, cobalt, chromium, copper, iron, manganese, nickel and zinc respectively. The mean levels of metals (Fe and Ca) in the red pepper samples from Alaba were found to be highest Co, Cu, Ni and Zn were found in the highest level in Mareko than with in Alaba and Merkato peppers. While chromium and manganese were available with maximum levels in Merkato peppers. The concentrations of metals in Ethiopia pepper were comparable to values reported in literature from different parts of the world. The trace metals levels in either sample were found to be lower than the WHO allowed limit. However Cr is found above the limit.
URI: http://hdl.handle.net/123456789/2689
Appears in:Thesis - Chemistry

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