Navegando por Autor "Souza, Hélter José Silva de"

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Estudo químico e atividade sequestradora de radical livre da própolis de Trigona spinipes Smith (Arapuá)
(2022-06-10) Souza, Hélter José Silva de; Silva, Tania Maria Sarmento da; http://lattes.cnpq.br/9185334632055347
The stingless bee Trigona spinipes is popularly known as a primordial generalist species in the performance of ecosystem services, due to the speciesization of agri-cul-tural plants, as a dominant species in the interaction networks between plants and bees. Geopropolis, is a resin mixture collected from pro-resin resins, essential oils, pollen, wax, sugars and salivary secretions from bees. This work describes the chemical study of two samples of Trigona spinipes propolis collected in the Caatinga region of the Polo Petrolina-PE, in the areas that comprise the Vale de São Francis-co. The chemical study of the extracts and fractions was carried out by Ultra Perfor-mance Liquid Chromatography coupled with Diode Array detectors and Quadrupole Time-Time Quadruple Mass Spectrometer (UPLC-DAD-QTOF-MS/MS) and coupled Gas Chromatography a Mass Spectrometer (CG/MS). From the chemical study it was possible to observe the presence of substances from the classes of polyamines, fla-vonoids, terpenes, steroids and fatty acids. The two have similar chemical com-posi-tion. The biological study with total phenolics, flavonoids and the DPPH radical showed that propolis are rich sources of bioactive compounds with antioxidant po-tential. The pro-anti-inflammatory action presents protection against bacteria, virus, fungi and anti-inflammatory activities.