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Freitas, Jair C. C., Ejaz, Maryam, Toci, Aline T., Romão, Wanderson and Khimyak, Yaroslav Z. 
ORCID: https://orcid.org/0000-0003-0424-4128
(2023)
Solid-state NMR spectroscopy of roasted and ground coffee samples: Evidences for phase heterogeneity and prospects of applications in food screening.
Food Chemistry, 409.
ISSN 0308-8146
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Abstract
The advancement in the use of spectroscopic techniques to investigate coffee samples is of high interest especially considering the widespread problems with coffee adulteration and counterfeiting. In this work, the use of solid-state nuclear magnetic resonance (NMR) is investigated as a means to probe the various chemically-distinct phases existent in roasted coffee samples and to detect the occurrence of counterfeiting or adulterations in coffee blends. Routine solid-state 1H and 13C NMR spectra allowed the distinction between different coffee types (Arabica/Robusta) and the evaluation of the presence of these components in coffee blends. On the other hand, the use of more specialized solid-state NMR experiments revealed the existence of phases with different mo-lecular mobilities (e.g., associated with lipids or carbohydrates). The results illustrate the usefulness of solid-state NMR spectroscopy to examine molecular mobilities and interactions and to aid in the quality control of coffee -related products.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding Information: JCCF and WR acknowledge the support from Brazilian agencies CAPES (processes PE 88881.178317/2018-01 and 23038.007083/2014-40), CNPq (grants 408001/2016-0 and 310057/2020-5) and FAPES (process 280/2021). |
| Uncontrolled Keywords: | solid-state nmr,adulteration,food composition,roasted and ground coffee,analytical chemistry,food science ,/dk/atira/pure/subjectarea/asjc/1600/1602 |
| Faculty \ School: | Faculty of Science > School of Pharmacy |
| UEA Research Groups: | Faculty of Science > Research Groups > Pharmaceutical Materials and Soft Matter |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 17 Mar 2023 17:30 |
| Last Modified: | 25 Dec 2023 01:38 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/91561 |
| DOI: | 10.1016/j.foodchem.2022.135317 |
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