title: Amino acids profile of Serbian unifloral honeys.
abstract: BACKGROUND
  The free amino acids profile of 192 samples of seven different floral types of Serbian honey (acacia, linden, sunflower, rape, basil, giant goldenrod, and buckwheat) from six different regions was analysed in order to distinguish honeys by their botanical origin.
  
  
  RESULTS
  The most abundant amino acids were proline, alanine, phenylalanine, threonine and arginine. Based on the established amino acids profiles, some important differences have been identified among studied honey samples relying on the basic descriptive statistics data, and confirmed by multivariate chemometric methods. Principal component analysis revealed that basil honey samples form a well-defined cluster imposed with phenylalanine content. The model obtained by linear discriminant analysis might be used to distinguish basil honey from the rest of the samples, and has moderate predictive power to separate genuine acacia, linden, sunflower and rape honeys. New data for the amino acids profile of giant goldenrod and buckwheat honey samples are presented.
  
  
  CONCLUSIONS
  The floral origin of honey could be successfully evaluated by its amino acids profile coupled with chemometric analysis.
authors.affiliation: Institute of Veterinary Medicine of Serbia, Autoput 3, 11070, Belgrade, Serbia.
authors.forename: Jelena
authors.initials: J
authors.lastname: Kečkeš
authors.forename: Jelena
authors.initials: J
authors.lastname: Trifković
authors.forename: Filip
authors.initials: F
authors.lastname: Andrić
authors.forename: Milica
authors.initials: M
authors.lastname: Jovetić
authors.forename: Zivoslav
authors.initials: Z
authors.lastname: Tešić
authors.forename: Dušanka
authors.initials: D
authors.lastname: Milojković-Opsenica
mesh_terms: D000045:Acacia; D000596:Amino Acids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D019612:Fagopyrum; D035264:Flowers / Q000737:chemistry; D006368:Helianthus; D006722:Honey / Q000032:analysis* / Q000145:classification*; D016014:Linear Models; D015999:Multivariate Analysis; D018649:Ocimum basilicum; D055771:Serbia; D036624:Solidago; D032384:Tilia
chemical_list: D000596:Amino Acids
keywords: amino acids profile; botanical origin; high-performance liquid chromatography; pattern recognition methods; unifloral honeys