Physicochemical analysis and determination of di- and tri-saccharide content in Longan, Litchi and Siam weed honeys of Thailand

Honeys produced by bees from the nectars of longan, litchi and Siam weed growing in Thailand were analyzed for physicochemical profiles (moisture, Brix%, soluble solids, density, viscosity, pH, free acid, electrical conductivity, HMF, DN, proline, color, flavonoid and antioxidant activities) and their carbohydrates quantified as monosaccharides, disaccharides and trisaccharides. All physicochemical parameters met the regulation requirements under the Codex Alimentarius Standard, EU Council and directives legislation of the Ministry of Public Health of Thailand, except the HMF value of one sample. The conductivity, color [Abs]₄₅₀ and antioxidant activity were parameters that showed that there are significant differences in means between the groups of honey samples based on one way analysis of variance (ANOVA) (<i>p</i> p