Chemical Composition and Antibacterial Activity of Brazilian Propolis

Bankova, Vassya; Christov, R.; Kujumgiev, A; Marcucci, María Cristina; Попов, Симеон

doi:10.1515/znc-1995-3-402

Cited by 232 publications

(186 citation statements)

References 5 publications

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“…Porém, há uma grande controvérsia em relação ao teor de flavonóides nas amostras brasileiras (Pereira et al, 2002). Bankova et al (1995) concluíram que as própolis brasileiras têm uma baixa concentração de flavonóides e ésteres de ácidos fenólicos, possuindo altas concentrações de ácido dihidroxicinâmico, acetofenonas preniladas e alguns terpenóides específicos. Ainda citam que em alguns casos os flavonóides são importantes componentes presentes na própolis brasileira.…”

Section: Análise Fitoquímicaunclassified

Variabilidade sazonal dos constituintes da própolis vermelha e bioatividade em Artermia salina

Nunes¹,

Galindo²,

Deus³

et al. 2009

Rev. bras. farmacogn.

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RESUMO:A própolis é uma substância resinosa coletada pelas abelhas de diversas partes das plantas. Sua composição depende da época, vegetação e local de coleta. Apresenta diversas atividades biológicas como antimicrobiana, antioxidante, antitumoral, dentre outras. Foi realizado estudo da variabilidade sazonal, nos meses de fevereiro, junho e outubro de 2006, dos constituintes voláteis da própolis vermelha de Pernambuco através da extração por headspace dinâmico e identificação por cromatografia gasosa acoplada com espectrometria de massas (CG-EM). Foram identificados 34 constituintes voláteis, sendo monoterpenos e monoterpenóides, sesquiterpenos e sesquiterpenóides, fenilpropanóides, aldeídos, cetonas e η-alcanos. Os constituintes majoritários foram o trans-anetol, α-copaeno e o metil cis-isoeugenol. Também foi realizado o perfil fitoquímico por cromatografia em camada delgada (CCD), através da qual os constituintes fenólicos foram identificados como majoritários. Com o extrato bruto metanólico da própolis, realizou-se o ensaio de letalidade em Artemia salina, que demonstrou DL 50 de 18,9 µg/mL, sugerindo uma possível atividade antitumoral. Unitermos: Própolis vermelha, constituintes voláteis, Artemia salina.ABSTRACT: "Seasonal variability of red propolis constituents and brine shrimp bioassay". Propolis is a resinous hive product collected by honeybees from plant sources. The composition of the propolis depends on the season, the vegetation, and the area of collection. It presents a diverse biological activities such as antimicrobial, antioxidant and antitumoral. The seasonal variability of the red propolis constituents from Pernambuco State were accomplished in the months of February, June and October of 2006. The volatile red propolis constituients were captured by the dynamic headspace technique and analyzed by GC-MS. In the analysis of the samples, 34 constituents were identified as the mono and sesquiterpens, phenylpropanoids, aldehydes, cetons and n-alcanes, presenting as majority constituents the trans-anethol, α-copaene and methyl cis-isoeugenol. The phytochemistry profile was performed by thin layer chromatography (TLC). Through this technique the majority constituents were identified as phenols. The Brine shrimp bioassay was used to evaluate of the red propolis methanolic extract, which demonstrated a DL 50 of 18.9 µg/mL and an activity antitumoral was possibly suggested.

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Section: Análise Fitoquímicaunclassified

Variabilidade sazonal dos constituintes da própolis vermelha e bioatividade em Artermia salina

Nunes¹,

Galindo²,

Deus³

et al. 2009

Rev. bras. farmacogn.

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“…Therefore, Apis mellifera bees, as well as native stingless bees, must find other plant sources. Studies of South American propolis samples from different regions have attempted to determine their plant origins and chemical composition (2,12,17,21).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the composition of Brazilian propolis extracts by chromatography and evaluation of their in vitro activity against gram-positive bacteria

Sawaya¹,

Souza²,

Marcucci³

et al. 2004

Braz. J. Microbiol.

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Brazilian propolis from São Paulo state was submitted to extraction using several solvents, resulting in extracts with different composition. These extracts were submitted to Thin Layer Chromatography (TLC). Bioauthographic analysis of the TLC plates identified fractions with inhibitory activity, which were then analysed by High Performance Liquid Chromatography (HPLC). In vitro assays, commonly used to evaluate the activity of propolis against Gram-positive bacteria, were compared to determine which rendered the most consistent results. The bactericidal activity of these extracts were analysed by Serial Dilution in Tubes and Agar Plate Diffusion. Serial Dilution in Tubes obtained the most consistent results, with the Minimal Bactericidal Concentration of the extracts ranging between 2.5 and 20.0 mg/mL, for the species of Gram-positive bacteria tested. The results of the Agar Plate Diffusion were directly proportional to the hydro-solubility of the extracts and did not evaluate their bactericidal activity correctly. The bactericidal activity of this sample of propolis was due to the combined effect of several components that were identified by HPLC and were best extracted using 50% ethanol as a solvent.

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“…References have been found to extractive procedures using temperatures ranging from room temperature to 70 °C, ethanolic concentrations between 60% and absolute ethanol and extractions lasting from 30 minutes to 10 days. 5,[7][8][9][10][11][12] The purpose of this paper was to observe in which way several factors, which are commonly varied during commercial and research extractive procedures, affect the yield and phenolic composition of the propolis extracts. High Performance Liquid Chromatography (HPLC) analysis of selected extracts was performed, but cannot be expected to be used as a routine analytical procedure by beekeepers for reasons of cost.…”

mentioning

confidence: 99%

Factors that influence the yield and composition of Brazilian propolis extracts

Cunha¹,

Sawaya²,

Caetano³

et al. 2004

J. Braz. Chem. Soc.

143

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Durante a extração de própolis foram variados alguns fatores para determinar como eles afetam o rendimento e o teor de fenóis totais. Seis amostras diferentes da região sudeste do Brasil foram testadas. Os resultados indicam que os maiores rendimentos de extratos de própolis obtidos por maceração, que também apresentam o maior número de componentes, foram aqueles usando 70% (v/v) ou maior proporção de etanol no solvente. A extração em Soxhlet resultou em um maior rendimento. Não foram observadas diferenças entre extratos de macerações com ou sem luz. Um aumento no rendimento da extração foi observado entre os extratos obtidos por maceração durante 10 e 30 dias, porém o teor de fenóis não variou significativamente nesses extratos. O teor de fenóis totais de todos os extratos variou entre 6,41 e 15,24% mas nenhuma correlação direta foi encontrada com qualquer um dos fatores testados.During the extraction of propolis several factors were varied in order to determine how they affected the yield and phenolic composition of the obtained extracts. Six samples of green propolis from the Southeastern region of Brazil were tested. The results indicate that the highest yield of propolis extracts obtained by maceration, which also had the greatest number of components, were those using 70% (v/v) ethanol or more as a solvent. The Soxhlet extraction procedure resulted in even higher yields. No differences were observed between extracts macerated in the presence or absence of light. An increase in yield was observed between extracts macerated for 10 and 30 days although the phenolic content did not vary significantly. The total phenolic content of all extracts varied from 6.41 to 15.24 % but no direct correlation could be found between any of the factors tested. Keywords: propolis, extraction techniques, high performance liquid chromatography IntroductionPropolis, a resinous substance collected by bees from plants around the hive, is masticated by the bees, salivary enzymes and beeswax added, then applied to the combs and walls of the hive, 1 thereby insulating and reinforcing the hives as well as making the environment aseptic. For beekeepers, propolis is a by-product obtained by scraping the walls of the hives. Crude propolis is composed basically of 55% vegetable resins and balsam, 30% bee wax, 10% essential oil and 5% pollen. 2 Due to its antibiotic and anti-fungal activity, propolis has been used in folk medicine for many centuries 3 and is presently used in health food and various pharmaceutical and cosmetic products such as mouthwash preparations, face creams, lotions and tablets. 1 Traditionally, the fraction soluble in 70% ethanol was extracted and referred to as propolis balsam. 3 In order to avoid the characteristic ethanolic smell and solubility problems of this product, propolis extracts using water 4 or other solvents such as glycerol, edible oils and propylene glycol 5 are presently found on the market. There is no standard either for extractive procedure or composition of products that contain propolis extracts...

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Chemical Composition and Antibacterial Activity of Brazilian Propolis

Cited by 232 publications

References 5 publications

Variabilidade sazonal dos constituintes da própolis vermelha e bioatividade em Artermia salina

Variabilidade sazonal dos constituintes da própolis vermelha e bioatividade em Artermia salina

Analysis of the composition of Brazilian propolis extracts by chromatography and evaluation of their in vitro activity against gram-positive bacteria

Factors that influence the yield and composition of Brazilian propolis extracts

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