Ontology highlight
ABSTRACT:
SUBMITTER: Gunning Y
PROVIDER: S-EPMC5774150 | biostudies-literature | 2018 May
REPOSITORIES: biostudies-literature
Gunning Yvonne Y Defernez Marianne M Watson Andrew D AD Beadman Niles N Colquhoun Ian J IJ Le Gall Gwénaëlle G Philo Mark M Garwood Hollie H Williamson David D Davis Aaron P AP Kemsley E Kate EK
Food chemistry 20171211
High-field and low-field proton NMR spectroscopy were used to analyse lipophilic extracts from ground roast coffees. Using a sample preparation method that produced concentrated extracts, a small marker peak at 3.16 ppm was observed in 30 Arabica coffees of assured origin. This signal has previously been believed absent from Arabicas, and has been used as a marker for detecting adulteration with robusta. Via 2D 600 MHz NMR and LC-MS, 16-O-methylcafestol and 16-O-methylkahweol were detected for t ...[more]