A predictive spatial model for roasted coffee using oxygen isotopes of α-cellulose.
Avery W DriscollJohn D HowaNicholas Q BitterJames R EhleringerPublished in: Rapid communications in mass spectrometry : RCM (2020)
The oxygen isotope ratio of coffee bean cellulose is a useful indicator of region-of-origin and varies predictably in response to climatic factors and precipitation isotope ratios. The isoscape of coffee bean cellulose δ18 O values from this study provides a quantitative tool that can be applied to region-of-origin verification of roasted coffee at the point-of-sale.