Graphical exploration of 600-and 60-MHz proton NMR spectral datasets from ground roast coffee extracts

Kemsley, E. Kate ORCID: https://orcid.org/0000-0003-0669-3883 (2024) Graphical exploration of 600-and 60-MHz proton NMR spectral datasets from ground roast coffee extracts. Magnetic Resonance in Chemistry, 62 (4). pp. 236-251. ISSN 0749-1581

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Abstract

This article uses a variety of graphical and mathematical approaches to analyse 600- and 60-MHz ('benchtop') proton NMR spectra acquired from lipophilic and hydrophilic extracts of roasted coffee beans. The collection of 40 authenticated samples comprised various coffee species, cultivars and hybrids. The spectral datasets were analysed by a combination of metabolomics approaches, cross-correlation and whole spectrum methods, assisted by visualisation and mathematical techniques not conventionally employed to treat NMR data. A large amount of information content was shared between the 600-MHz and benchtop datasets, including in its magnitude spectral form, suggesting the potential for a lower cost, lower tech route to conducting informative metabolomics studies.

Item Type: Article
Additional Information: Research Funding: Biotechnology and Biological Sciences Research Council. Grant Number: BB/CCG1860/1
Uncontrolled Keywords: benchtop nmr,coffee,compact nmr,graphical exploration,high-resolution nmr,inter-correlation,magnitude spectra,metabolomics,spectral form,visualisation,nuclear-magnetic-resonance,h-1-nmr spectroscopy,green tea,h-1,arabica,16-o-methylcafestol,discrimination,authenticity,alignment,varieties
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: LivePure Connector
Date Deposited: 06 Jul 2023 09:31
Last Modified: 03 Apr 2024 13:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/92569
DOI: 10.1002/mrc.5373

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