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Antimicrobial activity of Brazilian propolis extracts against rumen bacteria in vitro

Abstract : The antimicrobial activity of three Brazilian propolis extracts was evaluated on bacterial strains representing major rumen functional groups. The extracts were prepared using different concentrations of propolis and alcohol, resulting in different phenolic compositions. The propolis extracts inhibited the growth of Fibrobacter succinogenes S85, Ruminococcus flavefaciens FD-1, Ruminococcus albus 7, Butyrivibrio fibrisolvens D1, Prevotella albensis M384, Peptostreptococcus sp. D1, Clostridium aminophilum F and Streptococcus bovis Pearl11, while R. albus 20, Prevotella bryantii B(1)4 and Ruminobacter amylophilus H18 were resistant to all the extracts. The inhibited strains showed also different sensitivity to propolis; the hyper-ammonia-producing bacteria (C. aminophilum F and Peptostreptococcus sp. D1) being the most sensitive. Inhibition of hyper-ammonia-producing bacteria by propolis would be beneficial to the animal. The extract containing the lowest amount of phenolic compounds (LLOS C3) showed the lowest antimicrobial activity against all the bacteria. The major phenolic compounds identified in the propolis extracts (naringenin, chrysin, caffeic acid, p-coumaric acid and Artepillin C) were also evaluated on four sensitive strains. Only naringenin showed inhibitory effect against all strains, suggesting that naringenin is one of the components participating to the antibacterial activity of propolis.
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https://hal.inrae.fr/hal-02652243
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Submitted on : Friday, May 29, 2020 - 6:41:13 PM
Last modification on : Tuesday, June 22, 2021 - 12:02:02 PM

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Silvia Cristina de Aguiar, Lucia Maria Zeoula, Selma Lucy Franco, Lucimar Pontara Peres, Pedro Braga Arcuri, et al.. Antimicrobial activity of Brazilian propolis extracts against rumen bacteria in vitro. World Journal of Microbiology and Biotechnology, Springer Verlag, 2013, 29 (10), pp.1951 - 1959. ⟨10.1007/s11274-013-1361-x⟩. ⟨hal-02652243⟩

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