Estimation of Elemental Concentrations of Ethiopia Coffee Arabica on Different Coffee Bean Varieties (Subspecies) Using Energy Dispersive X-Ray Florescence
International Journal of Scientific & Engineering Research Volume 9, Issue 4, April-2018 149 ISSN 2229-5518 Estimation of elemental concentrations of Ethiopia Coffee Arabica on different coffee bean Varieties (Subspecies) Using Energy Dispersive X-ray Florescence H. Masresha Feleke1*, Srinivasulu A1, K. Surendra1, B. Aruna1, Jaganmoy Biswas2, M. Sudershan2, A. D. P. Rao1, P. V. Lakshmi Narayana1 1. Dept. of Nuclear Physics, Andhra University, Visakhapatnam -530003, INDIA. 2. UGC-DAE Consortium for Scientific Research, Trace element lab, Salt Lake, Kolkata 700 098, India Abstract: Using Energy Dispersive X-ray Florescence (EDXRF) Elemental analysis, Coffee cherry of Arabica subspecies produced in crop years of 2015/2016 in nine different parts of coffee growing Area in Ethiopa were analyzed and has been found four major elements P, K, Ca, S and eight minor elements Mn, Fe, Cu, Zn, Se, Sr, Rb, Br from Twenty coffee Arabica subspecies. The Samples were washed; dried; Grinding with mortar and finally pelletized. EDXRF analysis were carried the energies of the X-rays emitted by the sample are measured using a Si- semiconductor detector and are processed by a pulse height analyzer. Computer analysis of this data yields an energy spectrum which defines the elemental composition of the sample. The system detection calibration and accuracy check was performed through different countries reported values and analysis of NIST certified reference materials SRM 1515 (Apple leaves). Most of coffee beans sample were found to be a good agreements towards NIST standards and different countries reported values. Meanwhile discussed the elemental concentration and their biological effects on human physiology. Keywords: Coffee Cherry,IJSER Subspecies coffee, Elemental Concentration and EDXRF 1.
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