prBAS EN 17992:2026
Food authenticity - Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR
General information
Status:Project
Number of pages:25
Adoption method:Proglašavanje
Language:engleski
Edition:1.
Realization date:13.11.2025
Forseen date for next stage code:10.03.2026
Technical committee:BAS/TC 43, Food
ICS:
67.140, Tea. Coffee. Cocoa
67.140.20, Coffee and coffee substitutes
67.140.20, Coffee and coffee substitutes
Abstract
This document specifies a method for the determination of soluble 16-O-Methylcafestol and 16-O-Methylkahweol content (the sum of free forms and derivatives, e.g. fatty acid esters, henceforth abbreviated as 16-OMD = “diterpenes”) in roasted coffee (beans or ground), using quantitative proton nuclear magnetic resonance spectroscopy (1H-qNMR).
If complying with the experimental parameters described below, this test procedure has been proven for the following mass fraction range:
w16-OMD: 20 mg/kg to 2 000 mg/kg.
The mass fraction range can be expanded by suitable changes of the experimental parameters, e.g. a different weighed portion of ground coffee or the accumulation of more NMR-transients.
Lifecycle
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Original document and degree of correspondence
EN 17992:2024, identical
Work material
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