DIN Standards Committee Food and Agricultural Products
Food authenticity - Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR
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.
Begin
2022-08-01
WI
00460008
Planned document number
FprEN 17992
Responsible national committee
NA 057-08-02-04 AK - NMR-Analytics
Responsible european committee
CEN/TC 460/WG 4 - NMR analysis
draft standard
Food authenticity - Determination of the sum of 16-O-methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR
2023-06
Order from DIN Media
Food authenticity - Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR
2024-06
Order from DIN Media