Monitoring Major Sugars in Greek Commercial Fir Honey and their Role in Geographical Differentiation, using Chemometrics
Keywords:
commercial fir honey; sugars; high pressure liquid chromatography; refractive index; differentiation
Abstract
The aim of the present study was a) to provide information on fructose, glucose, sucrose and maltose content, along with sum of fructose and glucose content, fructose/glucose ratio, and sum of the four sugars, of a lees common type of honey produced in Greece namely fir, and b) investigate the possibility of geographical differentiation using above parameters in combination with chemometrics. For this purpose, 30 commercial fir honey samples were collected during the harvesting period 2011 from 4 different regions in Greece. The analysis of saccharides was performed by high pressure liquid chromatography coupled to a refractive index detector. Results showed that sugar content of fir honey was affected by geographical origin (plt;0.05). Application of linear discriminant analysis (LDA) to sugar parameters resulted to the correct geographical differentiation of commercial fir honeys recording 80% correct classification rate using the original, and 76.7% the cross validation method, respectively.
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Published
2016-07-15
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