Gazi University Journal of Science 2147-1762 Gazi University Engineering Mühendislik Physicochemical and Palynological Characterization of the Onobrychis Miller (Fabaceae) Honey Ozenirler Cigdem HACETTEPE ÜNİVERSİTESİ, FEN FAKÜLTESİ Gencay Celemlı Omur HACETTEPE ÜNİVERSİTESİ, FEN FAKÜLTESİ Ecem Bayram Nesrin BAYBURT ÜNİVERSİTESİ Dıkmen Fatih İSTANBUL ÜNİVERSİTESİ Zare Golshan HACETTEPE ÜNİVERSİTESİ, ECZACILIK FAKÜLTESİ Celıkbıcak Omur HACETTEPE ÜNİVERSİTESİ, FEN FAKÜLTESİ Sorkun Kadriye HACETTEPE ÜNİVERSİTESİ, FEN FAKÜLTESİ 03 01 2019 32 1 63 76 06 01 2018 10 24 2018 Copyright © 1988, Gazi University Journal of Science 1988 Gazi University Journal of Science

The purpose of this study was to contributetoward characterizing the general properties of the Onobrychis Miller (sainfoin) honey.We analyzed 21 samples of Onobrychis honeys, which were collectedin 2013, from Northeast Anatolia according to their microscopic andphysicochemical features (fructose/glucose (F/G) ratio, 5-(hydroxymethyl)furan-2-carbaldehyde (HMF) value, and volatile compounds). The relationshipswere examined between these variables with statistical methods such asprincipal component, regression, and correlation analyses. Statistical analysesrevealed certain correlation patterns between several parameters. Onobrychis radiata (Desf.) M. Bieb., O. tournefortii (Willd.) Desv., O. oxyodonta Boiss. and Onobrychis spp. pollens wereidentified.TPN-10 ranged from 6532 to 481157 while the HMF values were between0.1–7.5 mg/kg and F/G ratios were between 0.8–1.3. Alcohols, aldehydes,aliphatic acids and their esters, carboxylic acids and their esters,hydrocarbons, flavonoids, ketones, sugars and vitamins were identified in thehoney samples within ranges of 0–11.95%, 0–16.76%, 0–24.72%, 0–1.86%, 0–14.71%,2.74–7.09%, 0–27.02%, 5.12–51.39%, and 0–21.36%, respectively.Although it wasnot significant, a positive correlation between flavonoids and Onobrychis pollen number was calculatedvia correlation analysis. There was no meaningful correlation between Onobrychis pollen number and otherparameters. Although a negative trend between flavonoids and sugars wasobserved, it was not significant. F/G ratio was found to be positivelycorrelated with sugars, HMF, and TPN-10 of which the latter two parameters hadsignificant values. Furthermore, a significant positive correlation betweenTPN-10 and HMF was also detected.

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