PROPIEDADES FISICOQUÍMICAS DE MIELES MONOFLORALES DE ENCENILLO DE LA ZONA ALTOANDINA EN BOYACÁ, COLOMBIA

Abstract

Honey is the natural product with sweetening properties more widely known, is produced by bees from the nectar of flowers and secretions from the plants. Its physicochemical properties depend on the season of harvest, environmental factors prevailing in the harvest period and the biogeographic zones. The aim of this work was focused in honeys produced by Weinmannia tomentosa from highlands andean of Colombia, that were characterized on melissopalynology, sensory attributes, composition, physicochemical properties and volatile compounds. Pollen grains at the samples were greater than 45%, conferring a quality of monofloral. Color pfund 69.0 ± 1.00, pH and total acidity 3.87 ± 0.04; 31.8 ± 1.40 meq kg-1, still within the standard limits, electrical conductivity 0.525 ± 0.004 mS cm-1, moisture 20.1 ± 0.43 g 100 g-1, ash 0.198 ± 0.002%, reducing sugars 69.7 ± 0.17 g 100g-1, total phenols 1570 ± 14 mg kg-1 A. Ga, flavonoids 129.4 ± 1.20 mg kg-1. Tabouret's index 3.75 ± 0.06 based on 1.35 ± 0.03 relationship fructose/glucose and 0.604 ± 0.050 water activity. Honey show a Newtonian's behavior. GC/MS analysis permitted to identify 25 volatile compounds, between alcohols, aldehydes, ketones, esters, hydrocarbons, furans, nitriles, sulfide and terpenes. The study is related as a model for characterization of types of honey and consolidated as the first research on unifloral honey in Colombia.

Keywords

• Encenillo blossom honey
• physicochemical properties
• volatile compounds