Susceptibility profile of Salmonella against the antibacterial activity of propolis produced in two regions of Brazil

Abstract

Propolis antibiotic action has been widely investigated. This assay was carried out in order to observe the in vitro antibacterial activity of propolis against Salmonella enteritidis isolated from food and Salmonella typhimurium isolated from human infections. Propolis was collected by Apis mellifera in two regions of Brazil (Mossoró, Rio Grande do Norte State; and Urubici, Santa Catarina State). Both strains survival percentage decreased with time of incubation in Ethanolic Extracts of Propolis (EEP), demonstrating bactericidal effect after 24 hours. It was also observed that EEP from Mossoró was more effective than that from Urubici. The control of the propolis solvent - 70% ethanol - was less effective than EEP, showing only a bacteriostatic effect. We can conclude that propolis shows an activity against Gram-negative bacteria that varies according to the geographical region where it was collected by bees

Atividade antibacteriana in vitro da própolis marrom

“…Siripatrawan et al (2013), utilizando própolis tailandesa extraída com etanol 30, 40, 50%, verificaram que os extratos de própolis demonstraram atividade antibacteriana frente a Staphylococcus aureus TISTR 118, no entanto, não exibindo halo de inibição com extrato 70% e, nenhuma dessas concentrações apresentou efeito inibitório frente a Escherichia coli TISTR 780, Pseudomonas aeruginosa ATCC 27853 e Salmonella enteritidis DMTS 17368. Já Orsi et al (2005), utilizando extratos de própolis provenientes de duas regiões do Brasil, verificaram efeito bactericida do extrato de própolis frente à Salmonella spp, assim como neste ensaio, no qual obteve-se CIM entre 4,5 e 9,3mg/mL (Quadro 2).…”

“…A grande diversidade dessas plantas, a época de coleta da resina, a genética das abelhas e a região geográfica proporcionam à própolis uma variada composição química (Marcucci 1996, Orsi et al 2005, Gonsales et al 2006, Daugsch et al 2008. As propriedades químicas da própolis apresentam importante valor farmacológico como um complexo natural e não como uma fonte de compostos que atuam isoladamente (Kujumgiev et al 1999).…”

Antibacterial activity of propolis collected in different regions of Brazil

“…Recently, it has been the subject of several studies aimed at elucidating its biological properties, such as antibacterial, antiviral, anti-inflammatory, anticarcinogenic, immunomodulatory, among others (1,3,5,14,15,16,17,21).…”

Xylariaceae Endophytic Fungi Metabolites Against Salmonella

“…Antimicrobial activity of phenolic compound toward microorganism, as salmonella, is well documented and support this chemical investigation (Orsi et al, 2005;Nohynek et al, 2006). Addition studies are being performed for compounds isolation and identification.…”