This study was carried out on two species of unroasted (green) coffee beans: Arabica (Coffea arabica) from Colombia and Nepal and Robusta (Coffea canephora) from Uganda and Vietnam. The tests were performed using an "electronic nose" consisting of two gas chromatography with sensitive flame ionisation detectors in parallel on stored green coffee beans. Using principle component analysis, it was possible to determine the geographical origin of green beans from the four countries.
Read the full paper at: Aroma profiles for geographic origin of green coffee beans
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