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dc.contributor.authorCengiz, Mehmet Fatih
dc.contributor.authorTuran, Önder
dc.contributor.authorÖzdemir, Durmuş
dc.contributor.authorAlbayrak, Yalçın
dc.contributor.authorPerinçek, Fatih
dc.contributor.authorKocabaş, Halil
dc.date.accessioned2018-01-30T13:53:17Z
dc.date.available2018-01-30T13:53:17Z
dc.date.issued2017-12
dc.identifier.citationCengiz, M. F., Turan, Ö., Özdemir, D., Albayrak, Y., Perinçek, F., and Kocabaş, H. (2017). Geographical origin of imported and domestic teas (Camellia sinensis) from Turkey as determined by stable isotope signatures. International Journal of Food Properties, 20(12), 3234-3243. doi:10.1080/10942912.2017.1283327en_US
dc.identifier.issn1094-2912
dc.identifier.urihttp://doi.org/10.1080/10942912.2017.1283327
dc.identifier.urihttp://hdl.handle.net/11147/6770
dc.description.abstractIn this study, stable isotope signatures (δ13C, δ15N, and δD) of both tea leaves and tea infusions were investigated to identify the geographical origin of Turkish domestic and imported tea samples. Sixteen domestic tea samples collected from different locations in the Black Sea Region, which produces almost 100% of tea in Turkey, and 11 imported tea samples (Kenya, India, Sri Lanka, Indonesia, and China) purchased from importers were studied. δ13C, δ15N, and δD in the samples were determined using isotope ratio mass spectrometry (IR-MS). δ13C in the samples ranged from −29.18 ± 0.01 to −25.7 ± 0.2, while δ15N ranged between 1.1 ± 0.2 and 5.2 ± 0.8. However, δD in the samples were found to be in the range from 56.5 ± 0.3 to 72 ± 1. The classifications of the tea samples into domestic and imported tea samples were achieved with 100% accuracy using multivariate statistical analyses (principal component analysis, PCA, and hierarchical cluster analysis, HCA). In conclusion, the domestic tea samples had a distinctive isotopic fingerprint and the isotopic ratios used in the study can be significant predictors in determination of the geographical source of Turkish tea.en_US
dc.language.isoengen_US
dc.publisherTaylor & Francisen_US
dc.relation.isversionof10.1080/10942912.2017.1283327en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectGeographical originen_US
dc.subjectIsotope ratioen_US
dc.subjectMultivariate statistical analysisen_US
dc.subjectCamellia sinensisen_US
dc.subjectBlack Sea regionsen_US
dc.subjectTurkish teaen_US
dc.titleGeographical origin of imported and domestic teas (Camellia sinensis) from Turkey as determined by stable isotope signaturesen_US
dc.typearticleen_US
dc.contributor.authorIDTR115516en_US
dc.contributor.iztechauthorÖzdemir, Durmuş
dc.relation.journalInternational Journal of Food Propertiesen_US
dc.contributor.departmentİYTE, Fen Fakültesi, Kimya Bölümüen_US
dc.identifier.volume20en_US
dc.identifier.issue12en_US
dc.identifier.startpage3234en_US
dc.identifier.endpage3243en_US
dc.identifier.wosWOS:000418581500035
dc.identifier.scopusSCOPUS:2-s2.0-85017452352
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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