UNE-EN 17992:2025
Current
The latest, up-to-date edition.
Food authenticity - Determination of the sum of 16-O-methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR
Hardcopy , PDF
Spanish, Castilian, English
02-07-2025
This document specifies a method for the determination of soluble 16-O-Methylcafestol and 16-O-Methyl kahweol 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 concentration range:
16-OMD: 20 mg/kg to 2 000 mg/kg.
The concentration 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.
| Committee |
CTN 34/SC 10
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| EN 17992:2024 | Identical |
| DIN EN 17992:2025-01 | Equivalent |
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