title: Differentiation of Anatolian honey samples from different botanical origins by ATR-FTIR spectroscopy using multivariate analysis.
abstract: Botanical origin of the nectar predominantly affects the chemical composition of honey. Analytical techniques used for reliable honey authentication are mostly time consuming and expensive. Additionally, they cannot provide 100% efficiency in accurate authentication. Therefore, alternatives for the determination of floral origin of honey need to be developed. This study aims to discriminate characteristic Anatolian honey samples from different botanical origins based on the differences in their molecular content, rather than giving numerical information about the constituents of samples. Another scope of the study is to differentiate inauthentic honey samples from the natural ones precisely. All samples were tested via unsupervised pattern recognition procedures like hierarchical clustering and Principal Component Analysis (PCA). Discrimination of sample groups was achieved successfully with hierarchical clustering over the spectral range of 1800-750 cm(-1) which suggests a good predictive capability of Fourier Transform Infrared (FTIR) spectroscopy and chemometry for the determination of honey floral source.
authors.affiliation: Department of Biological Sciences, Middle East Technical University, 06531 Ankara, Turkey.
authors.forename: Seher
authors.initials: S
authors.lastname: Gok
authors.affiliation: Department of Electrical and Electronic Engineering, Middle East Technical University, 06531 Ankara, Turkey.
authors.forename: Mete
authors.initials: M
authors.lastname: Severcan
authors.affiliation: Center for Structural Biology and Bioinformatics, Laboratory for the Structure and Function of Biological Membranes, Université Libre de Bruxelles, Brussels, Belgium.
authors.forename: Erik
authors.initials: E
authors.lastname: Goormaghtigh
authors.affiliation: Department of Biology, Ankara University, Ankara, Turkey.
authors.forename: Irfan
authors.initials: I
authors.lastname: Kandemir
authors.affiliation: Department of Biological Sciences, Middle East Technical University, 06531 Ankara, Turkey. Electronic address: feride@metu.edu.tr.
authors.forename: Feride
authors.initials: F
authors.lastname: Severcan
mesh_terms: D006722:Honey / Q000032:analysis*; D015999:Multivariate Analysis; D025341:Principal Component Analysis; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
keywords: ATR-FTIR spectroscopy; Botanical origin; Hierarchical Cluster Analysis; Honey; Multivariate analysis; Principal Component Analysis