Multivaridate Analysis of Trace Elements for Coffee Beans Geographic Origins

Abstract

Trace elements including magnesium (Mg), aluminium (Al), calcium (Ca), manganese (Mn), iron (Fe) and zinc (Zn) in coffee samples were measured by ICP-Atomic Emission Spectrometry (ICPS1000IV). Twenty four coffee bean samples were collected from 12 different areas in Indonesia and Guatemala.

Coffee bean samples were classified into two geographic origins with 91.67 % correction rate by discriminant analysis.