Effects of propolis from Brazil and Bulgaria on Salmonella serovars

Abstract

Propolis shows biological properties such as antibacterial action. This bee product has a complex chemical composition, which depends on the local flora where it is produced. Salmonella serovars are responsible for human diseases that range from localized gastroenteritis to systemic infections. The aim of the present study was to investigate the susceptibility of Salmonella strains, isolated from food and infectious processes, to the antibacterial action of Brazilian and Bulgarian propolis, as well as to determine the behavior of these bacteria, according to the incubation period, in medium plus propolis. Dilution of ethanolic extract of propolis in agar was the used method. Brazilian and Bulgarian propolis showed an antibacterial action against all Salmonella serovars. The minimal inhibitory concentrations (MIC) of propolis were similar, although they were collected in different geographic regions.Salmonella typhimurium, isolated from human infection, was more resistant to propolis than Salmonella enteritidis.

A própolis e sua utilização em animais de produção.

“…Do mesmo modo, Orsi (2007), objetivando investigar a susceptibilidade de cepas de Salmonella, isoladas de processos infecciosos e de alimentos, para a ação antibacteriana da própolis brasileira e búlgara, bem como determinar o comportamento dessas bactérias, de acordo com o período de incubação, acrescidas de própolis, constatouse que as duas amostras da própolis mostraram uma ação antibacteriana contra todas as cepas de Salmonella, porém as concentrações inibitórias mínimas de própolis foram semelhantes, apesar de terem sido coletadas em diferentes regiões geográficas. As cepas de Salmonella enteritidis (isoladas do alimento) foram mais suscetível a própolis brasileira e búlgara em comparação com as cepas de Salmonella typhimurium, isoladas das infecções humanas apresentando maior resistências às duas amostras de própolis.…”

Chemical composition and antibacterial activity of Brazilian propolis essential oil

“…In addition, propolis is known to be a health food that presents antibacterial, antioxidative, immunomodulatory, antifungal, antiviral, antiprotozoal, antiinflammatory and antitumor activities (3)(4)(5)(6)(7)(8)(9)(10)(11)(12). Bosio et al (13) Though the antibacterial activity of propolis essential oil from Paraná and Piauí states has been reported, the literature on the antimicrobial activity of this oil from Rio de Janeiro State is scarce (17,21).…”

A Pilot Study on the Immunomodulatory Effect of Bulgarian Propolis

“…There is a balance between these two types of immune response that sustains the immunological homeostasis. Some scientists prove that propolis ethanol extract stimulates non-specific immunity, activates humoral immunity and enhances cellmediated immune response (11,13,17).…”

“…There are analyses of Chinese, Brazilian, Scandinavian and some other types of propolis both in vivo in animal models and in vitro in normal and tumor cell lines, but no scientific data for the Bulgarian product is available yet. Propolis and its components are tested mainly in the area of microbiology and parasitology (6,8,11,15,16). …”