title: Characterization of monofloral honeys with multivariate analysis of their chemical profile and antioxidant activity.
abstract: Various bioactive chemical constituents were quantified for 21 honey samples obtained at Rio de Janeiro and Minas Gerais, Brazil. To evaluate their antioxidant activity, 3 different methods were used: the ferric reducing antioxidant power, the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity, and the 2,2'-azinobis (3-ethylbenzothiazolin)-6-sulfonate (ABTS) assays. Correlations between the parameters were statistically significant (-0.6684 ≤ r ≤-0.8410, P < 0.05). Principal component analysis showed that honey samples from the same floral origins had more similar profiles, which made it possible to group the eucalyptus, morrão de candeia, and cambara honey samples in 3 distinct areas, while cluster analysis could separate the artificial honey from the floral honeys.
  
  
  CONCLUSIONS
  This research might aid in the discrimination of honey floral origin, by using simple analytical methods in association with multivariate analysis, which could also show a great difference among floral honeys and artificial honey, indicating a possible way to help with the identification of artificial honeys.
authors: Departamento de Química, Universidade Federal Rural do Rio de Janeiro, RJ, Brazil.
authors: Luiza D'O
authors: LD
authors: Sant'Ana
authors: Juliana P L M
authors: JP
authors: Sousa
authors: Fernanda B
authors: FB
authors: Salgueiro
authors: Maria Cristina Affonso
authors: MC
authors: Lorenzon
authors: Rosane N
authors: RN
authors: Castro
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000975:Antioxidants / Q000032:analysis* / Q000737:chemistry*; D001688:Biological Products / Q000737:chemistry*; D001938:Brazil; D003116:Color; D004044:Dietary Proteins / Q000032:analysis; D005419:Flavonoids / Q000032:analysis; D006722:Honey / Q000032:analysis* / Q000145:classification; D006801:Humans; D006863:Hydrogen-Ion Concentration; D015999:Multivariate Analysis; D010636:Phenols / Q000032:analysis; D011058:Pollen / Q000033:anatomy & histology; D025341:Principal Component Analysis; D015203:Reproducibility of Results
chemical_list: D000596:Amino Acids; D000975:Antioxidants; D001688:Biological Products; D004044:Dietary Proteins; D005419:Flavonoids; D010636:Phenols