EA-IRMS: Tracing the Geographical Origin of Coffee
2017-9-12 · African coffee Asian coffee South and Central Americancoffee Figure 1. Hydrogen and oxygen isotope fingerprints of roasted coffee beans from Africa (blue), Asia (brown) and central and South America (purple). Identifying mislabeled coffee The Bio Sumatra coffee measured is grouped with coffee from South and Central America rather than from
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