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Homepage>BS EN 17992:2024 Food authenticity. Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR

BS EN 17992:2024

Food authenticity. Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR

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Označení normy:	BS EN 17992:2024
Počet stran:	28
Vydáno:	2024-11-08
ISBN:	978 0 539 27683 1
Status:	Standard

DESCRIPTION

BS EN 17992:2024

This standard BS EN 17992:2024 Food authenticity. Determination of the sum of 16-O-Methylcafestol, 16-O-Methylkahweol and their derivatives in roasted coffee by ¹H-qNMR is classified in these ICS categories:

67.140.20 Coffee and coffee substitutes

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.

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