16-O-methylcafestol is present in ground roast Arabica coffees: Implications for authenticity testing

Yvonne Gunning,Marianne Defernez,Andrew D Watson, Niles Beadman,Ian J Colquhoun,Gwénaëlle Le Gall,Mark Philo, Hollie Garwood,David Williamson,Aaron P Davis,E Kate Kemsley

Food Chemistry（2018）

引用 61|浏览16

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摘要

•Lipophilic extracts of ground roast Arabica coffees were authenticated by benchtop NMR.•Small amounts of esterified 16-O-methylcafestol were found in Arabica coffees.•The compound identity was confirmed by NMR and MS experiments.•16-OMC remains a useful marker for non-Arabicas as these contain much higher amounts.•6 out of 60 retail Arabicas contained significant amounts of non-Arabica species.

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关键词

NMR,Spectroscopy,Low-field,Coffee,Adulteration,Species,Arabica,Robusta,Authentication

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