Plants of the Cerrado with antimicrobial effects against Staphylococcus spp. and Escherichia coli from cattle

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dc.creatorIzabella Carolina de Oliveira Ribeiro
dc.creatorEmanuelly Gomes Alves Mariano
dc.creatorRoberta Torres Careli
dc.creatorFranciellen Morais Costa
dc.creatorFelipe Machado de Sant’Anna
dc.creatorMaximiliano Soares Pinto
dc.creatorMarcelo Resende de Souza
dc.creatorEduardo Robson Duarte
dc.date.accessioned2022-12-08T14:02:24Z
dc.date.accessioned2025-09-09T01:02:42Z
dc.date.available2022-12-08T14:02:24Z
dc.date.issued2018-01-30
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doi10.1186/s12917-018-1351-1
dc.identifier.issn1746-6148
dc.identifier.urihttps://hdl.handle.net/1843/47840
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBMC Veterinary Research
dc.rightsAcesso Aberto
dc.subjectEscherichia coli
dc.subjectMastite
dc.subjectPlantas medicinais
dc.subjectStaphylococcus aureus
dc.subjectAgentes antiinfecciosos
dc.titlePlants of the Cerrado with antimicrobial effects against Staphylococcus spp. and Escherichia coli from cattle
dc.typeArtigo de periódico
local.citation.issue32
local.citation.volume14
local.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.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://bmcvetres.biomedcentral.com/articles/10.1186/s12917-018-1351-1

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