Data/hora: 10/06/2024 13:36:16

Provedor de dados: 	Acta Amazonica	
País: 	Brazil	
Título: 	Physicochemical properties and antioxidant capacity of propolis of stingless bees (Meliponinae) and Apisfrom two regions of Tocantins, Brazil	
Autores: 	ARAÚJO,Karuane Saturnino da Silva; SANTOS JÚNIOR,Joaquim Francisco dos; SATO,Marcello Otake; FINCO,Fernanda Dias Bartolomeu Abadio; SOARES,Ilsamar Mendes; BARBOSA,Robson dos Santos; ALVIM,Tarso da Costa; ASCÊNCIO,Sérgio Donizeti; MARIANO,Sandra Maria Botelho.	
Data: 	2016-03-01	
Ano: 	2016	
Palavras-chave: 	Propolis; Antioxidant; Phenol compounds.	
Resumo: 	ABSTRACTThe composition of propolis depends on time, vegetation and the location of the collection area. The objective of this study was to determine the physicochemical characteristics, the concentration of phenol compounds and the antioxidant capacity of propolis of native stingless bees (Meliponinae)and Apis from the State of Tocantins. Extraction with 80% ethanol (v/v) was performed in order to obtain the extracts. Parameters examined were: propolis mass loss by desiccation at 105 ºC, ashes, wax concentration and pH. Furthermore, the propolis antioxidant activity was measured, as well as the total concentration of phenol compounds. The extracts were also analyzed by high performance liquid chromatography. The total concentration of phenol compounds varied between 121.78 and 631.29 (mg GAE g-1). The antioxidant activity expressed by the value of CE50 varied between 29.81 and 845.38 µg mL-1. High performance liquid chromatography analysis allowed us to infer the existence of phenol compounds. The results indicated that the studied propolis samples constitute good sources of natural antioxidants. The variety of phenol compounds identified in this study, and the diverse biological functions reported in literature for these compounds indicated that this stingless bee propolis (Meliponinae) and Apis has a high pharmacological potential.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000100061	
Editor: 	Instituto Nacional de Pesquisas da Amazônia	
Relação: 	10.1590/1809-4392201501045	
Formato: 	text/html	
Fonte: 	Acta Amazonica  v.46 n.1 2016	
Fonte: 	info:eu-repo/semantics/openAccess