ANÁLISES MELISSOPALINOLÓGICAS, FÍSICO-QUÍMICAS, ATIVIDADE ANTIRRADICALAR E PERFIL QUÍMICO POR UPLC-DAD-QTOF-MS/MS DOS MÉIS DE Frieseomelitta doederleini (ABELHA BRANCA): COMPARAÇÃO COM OS FENÓLICOS PRESENTES NAS FLORES DE Mimosa tenuiflora (JUREMA PRETA)

Abstract

Frieseomelitta doederleini honeys from semiarid region of the Northeast of Brazil are presented. The melissopalynological analysis showed two principal pollen types of Mimosa tenuiflora (jurema preta) and Shinus sp (aroeira). The chemical profile data obtained by UPLC-DAD-qTOF-MS/MS of the Mimosa tenuiflora flowers (principal pollen of honey) and the five samples of F. doederleini honeys both flowers and honey showed similar profile. Abelha branca honeys samples had similar characteristic profile of phenolic compounds (flavonoids), and also antiradical activity. The main flavonoids identified in the honey samples in the jurema preta flowers were flavonols/flavone and flavanols/flavanones aglycones. All the flavonoids identified showing that the nectar collected by the bees may be from this plant species. The antiradical activity of the honey samples strongly correlated with their phenolic content. Among the minerals analyzed, potassium was the most abundant, followed by magnesium.

Leismanicidal Activity of Propolis Collected in the Semiarid Region of Brazil

“…It is interesting to note that the identified flavonoids present only six main nuclei, and the difference was the presence of the methoxyl groups in the flavonoids. The fragments found for flavonoids are similar to the flavonoids reported by Santisteban et al, 2019 . Methoxylated flavonoids lost preferentially nCH 3 • , yielding the characteristic fragments of [M - H-n × 15] + .…”