Propolis from southeastern and northeastern of Brazil: the influence of seasonality in antibacterial activity and phenolic composition

Química Nova

Castro, Myrella Léssio¹  Duarte, Simone¹  Koo, Hyun¹  Cury, Jaime Aparecido¹  Universidade Federal de Alfenas, Alfenas, Brasil¹  University of Rochester, USA¹  Rosalen, Pedro Luiz¹  Universidade Estadual de Campinas, Piracicaba, Brasil¹  Ikegaki, Masaharu¹  Universidade de São Paulo, Piracicaba, Brasil¹  Alencar, Severino Matias¹ 

关键词: propolis;    seasonal effect;    phenolic compounds.;   

DOI  :  10.1590/S0100-40422007000700003

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The composition and biological activities of propolis, a resinous hive product collected by honeybees from various plant sources, depends on various factors such as season and vegetation of the area. The aim of this study was to evaluate the influence of the seasonal effect on the ethanolic extracts of Brazilian propolis (EEP) type 6 and type 12, collected during 6 months in terms of antibacterial activity and phenolic composition. The antimicrobial properties were evaluated by MIC and MBC on S. mutans Ingbritt 1600 and the profile of chemical composition by UV-visible spectrophotometry, HPLC-RF and GC-MS. The results demonstrated that the season in which propolis is collected influences its chemical composition, resulting in modifications in its antibacterial activity.

【 授权许可】

Unknown