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Reliable Discrimination of Green Coffee Beans Species: A Comparison of UV-Vis-Based Determination of Caffeine and Chlorogenic Acid with Non-Targeted Near-Infrared Spectroscopy

dc.contributor.authorAdnan, Adnan
dc.contributor.authorNaumann, Marcel
dc.contributor.authorMörlein, Daniel
dc.contributor.authorPawelzik, Elke
dc.date.accessioned2020-07-29T12:41:50Z
dc.date.available2020-07-29T12:41:50Z
dc.date.issued2020de
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/17470
dc.description.abstractSpecies adulteration is a common problem in the coffee trade. Several attempts have been made to differentiate among species. However, finding an applicable methodology that would consider the various aspects of adulteration remains a challenge. This study investigated an ultraviolet–visible (UV-Vis) spectroscopy-based determination of caffeine and chlorogenic acid contents, as well as the applicability of non-targeted near-infrared (NIR) spectroscopy, to discriminate between green coffee beans of the Coffea arabica (Arabica) and Coffea canephora (Robusta) species from Java Island, Indonesia. The discrimination was conducted by measuring the caffeine and chlorogenic acid content in the beans using UV-Vis spectroscopy. The data related to both compounds was processed using linear discriminant analysis (LDA). Information about the diffuse reflectance (log 1/R) spectra of intact beans was determined by NIR spectroscopy and analyzed using multivariate analysis. UV-Vis spectroscopy attained an accuracy of 97% in comparison to NIR spectroscopy’s accuracy by selected wavelengths of LDA (95%). The study suggests that both methods are applicable to discriminate reliably among species.de
dc.description.sponsorshipOpen-Access-Publikationsfonds 2020
dc.language.isoengde
dc.rightsopenAccess
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectArabica; Robusta; caffeine; chlorogenic acid; linear discriminant analysis; food fraudde
dc.subject.ddc630
dc.titleReliable Discrimination of Green Coffee Beans Species: A Comparison of UV-Vis-Based Determination of Caffeine and Chlorogenic Acid with Non-Targeted Near-Infrared Spectroscopyde
dc.typejournalArticlede
dc.identifier.doi10.3390/foods9060788
dc.type.versionpublishedVersionde
dc.relation.eISSN2304-8158
dc.bibliographicCitation.volume9de
dc.bibliographicCitation.issue6de
dc.bibliographicCitation.firstPage1de
dc.bibliographicCitation.lastPage14de
dc.type.subtypejournalArticle
dc.bibliographicCitation.articlenumber788de
dc.description.statuspeerReviewedde
dc.bibliographicCitation.journalFoodsde


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