Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/47840
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dc.creatorIzabella Carolina de Oliveira Ribeiropt_BR
dc.creatorEmanuelly Gomes Alves Marianopt_BR
dc.creatorRoberta Torres Carelipt_BR
dc.creatorFranciellen Morais Costapt_BR
dc.creatorFelipe Machado de Sant’Annapt_BR
dc.creatorMaximiliano Soares Pintopt_BR
dc.creatorMarcelo Resende de Souzapt_BR
dc.creatorEduardo Robson Duartept_BR
dc.date.accessioned2022-12-08T14:02:24Z-
dc.date.available2022-12-08T14:02:24Z-
dc.date.issued2018-01-30-
dc.citation.volume14pt_BR
dc.citation.issue32pt_BR
dc.identifier.doi10.1186/s12917-018-1351-1pt_BR
dc.identifier.issn1746-6148pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/47840-
dc.description.resumoBackground: both diarrhea in calves and mastitis in cows limit cattle production. The bacteria involved in these diseases have shown multi-resistance to antimicrobials, however plant metabolites therefore can provide an alternative method of control. This study selected and characterized Cerrado plant extracts showing inhibitory effects against Escherichia coli and Staphylococcus spp. from cattle. Thirteen leaf extracts were initially screened and diameters of inhibition zones produced against the pathogens were recorded using an agar disk diffusion method. Total condensed tannin contents were determined and antibacterial activities were analyzed after tannin removal from the five selected extracts. The minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were evaluated by macro-dilution antimicrobial susceptibility tests, and the extracts were characterized by high performance liquid chromatography. Results: inter- and intra-specific bacterial variations in the susceptibility to the extracts were detected. The aqueous extract (AE) from Caryocar brasiliense Cambess. leaves produced larger inhibition zones against E. coli strains than did other selected extracts. However, the AE from Schinopsis brasiliensis was the most effective against Staphylococcus spp. strains (P < 0.001). The MIC of ethanolic extracts (EE) from C. brasiliense (0.27 mg/mL) and S. brasiliensis (0.17 mg/mL) were lower than those of other extracts. The MIC and MBC of the Annona crassiflora EE were 6.24 mg/mL for all bacteria. Flavonoids were the main metabolites detected in the A. crassiflora EE as well as in the AE and EE from C. brasiliense, while tannins were the main metabolites in the S. brasiliensis leaf extracts. Conclusion: the AE from C. brasiliense was more effective against Gram-negative bacteria, while the AE from S. brasiliensis was more effective against Gram-positive bacteria. A. crassiflora EE and S. brasiliensis extracts are potent bactericide. After removal of the tannins, no antimicrobial effects were observed, indicating that these metabolites are the main active antibacterial components.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofBMC Veterinary Researchpt_BR
dc.rightsAcesso Abertopt_BR
dc.subject.otherEscherichia colipt_BR
dc.subject.otherMastitept_BR
dc.subject.otherPlantas medicinaispt_BR
dc.subject.otherStaphylococcus aureuspt_BR
dc.subject.otherAgentes antiinfecciosospt_BR
dc.titlePlants of the Cerrado with antimicrobial effects against Staphylococcus spp. and Escherichia coli from cattlept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://bmcvetres.biomedcentral.com/articles/10.1186/s12917-018-1351-1pt_BR
Appears in Collections:Artigo de Periódico



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