Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UNIFENAS |
Texto Completo: | http://tede2.unifenas.br:8080/jspui/handle/jspui/137 |
Resumo: | Mastitis is a disease that affects dairy cattle, an intramammary infection. Staphylococcus aureus are the major mastitis causing bacteria and the milk can be contaminated by the contact with infected teats. For treatment, due to the indiscriminate use of antimicrobials drugs commercialized, the appearing of multi-resistant strains is notorious. An alternative to the antimicrobial resistance problem is the use of plant extracts like Psidium guajava L. The objective of this study was to evaluate, in vitro, the microbial sensibility profile of Staphylococcus aureus isolated from milk samples of cows infected with mastitis, against antimicrobial agents and hydroalcoholic leaf of Psidium guajava L. Plants were harvested in three rural properties located in the municipality of Alfenas/MG region. Sampling animals was not probabilistic. Milk samples were cultured for presence of Staphylococcus sp. Additionally, the isolated bacteria were identified as Staphylococcus aureus and subjected to many tests to check the antimicrobial sensibility. The hydroalcoholic extract of Psidium guajava L. was prepared and antimicrobial tests were performed by the technician in wells. Contamination by Staphylococcus aureus was confirmed in 55% of the analyzed samples. The most effective antibiotics were clindamycin, erythromycin and rifampin. Penicillin G was the antimicrobial that showed the lower levels of sensibility. The hydroalcoholic extract of the leaf of Psidium guajava L. showed antimicrobial activity against all strains of isolated Staphylococcus aureus by inhibiting microbial growth in all tested concentrations. Therefore the use of this plant extract can be an alternative method to combat the increase incidence of microorganisms resistant to antimicrobial drugs sold, besides a potential field of study. |
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Fiorini, João EvangelistaCPF:05657512634http://lattes.cnpq.br/6320803631314170Oliveira, Nelma de Mello SilvaCPF:82933499720http://lattes.cnpq.br/0957577806208187Boriollo, Marcelo Fabiano GomesCPF:19025023886http://lattes.cnpq.br/3082697882570018CPF:08937934698http://lattes.cnpq.br/3329558008036765Menezes, Juliana da Silva2016-05-02T13:55:35Z2013-04-182013-02-04MENEZES, Juliana da Silva. In vitro antimicrobial activity of Psidium guajava L. against Staphylococcus aureus isolated from mastitic milk.. 2013. 64 f. Dissertação (Mestrado em Zootecnia e Recursos Pesqueiros) - Universidade Jose do Rosario Vellano, Alfenas, 2013.http://tede2.unifenas.br:8080/jspui/handle/jspui/137Mastitis is a disease that affects dairy cattle, an intramammary infection. Staphylococcus aureus are the major mastitis causing bacteria and the milk can be contaminated by the contact with infected teats. For treatment, due to the indiscriminate use of antimicrobials drugs commercialized, the appearing of multi-resistant strains is notorious. An alternative to the antimicrobial resistance problem is the use of plant extracts like Psidium guajava L. The objective of this study was to evaluate, in vitro, the microbial sensibility profile of Staphylococcus aureus isolated from milk samples of cows infected with mastitis, against antimicrobial agents and hydroalcoholic leaf of Psidium guajava L. Plants were harvested in three rural properties located in the municipality of Alfenas/MG region. Sampling animals was not probabilistic. Milk samples were cultured for presence of Staphylococcus sp. Additionally, the isolated bacteria were identified as Staphylococcus aureus and subjected to many tests to check the antimicrobial sensibility. The hydroalcoholic extract of Psidium guajava L. was prepared and antimicrobial tests were performed by the technician in wells. Contamination by Staphylococcus aureus was confirmed in 55% of the analyzed samples. The most effective antibiotics were clindamycin, erythromycin and rifampin. Penicillin G was the antimicrobial that showed the lower levels of sensibility. The hydroalcoholic extract of the leaf of Psidium guajava L. showed antimicrobial activity against all strains of isolated Staphylococcus aureus by inhibiting microbial growth in all tested concentrations. Therefore the use of this plant extract can be an alternative method to combat the increase incidence of microorganisms resistant to antimicrobial drugs sold, besides a potential field of study.A mastite é a infecção intramamária que acomete o gado leiteiro bovino, causada mais frequentemente pela bactéria Staphylococcus aureus. O leite pode ser contaminado pelo contato direto com tetos infectados. Devido ao uso indiscriminado de antimicrobianos utilizados para o tratamento, é notório o aparecimento de micro-organismos resistentes. Uma alternativa pode ser o uso de extratos vegetais, a exemplo Psidium guajava L.. O objetivo deste trabalho foi avaliar o perfil de sensibilidade microbiana in vitro de isolados de Staphylococcus aureus provenientes de leite mastítico contra antimicrobianos e extrato hidroalcoólico da folha de Psidium guajava L.. A colheita foi realizada em três propriedades rurais da região da cidade de Alfenas, MG. A amostragem dos animais foi não probabilística. As amostras de leite foram processadas e inoculadas em meios de cultura seletivos para verificar a presença de Staphylococcus sp. Os isolados foram identificados quanto à espécie Staphylococcus aureus e submetidos a diferentes testes para verificar a sensibilidade aos antimicrobianos. Foi preparado o extrato hidroalcoólico das folhas e os testes antimicrobianos realizados pela técnica de poços. Foi confirmada a contaminação por Staphylococcus aureus em 55% das amostras. Os antibióticos de maior ação foram clindamicina, eritromicina e rifampicina. Penicilina G foi o antimicrobiano que apresentou menores índices de sensibilidade. O extrato da folha apresentou atividade antimicrobiana contra todos os isolados, inibindo o crescimento em todas as concentrações testadas. Portanto, a utilização deste extrato vegetal pode ser uma alternativa à crescente resistência microbiana aos antimicrobianos comercializados, sendo um potencial campo de estudos.Made available in DSpace on 2016-05-02T13:55:35Z (GMT). No. of bitstreams: 1 Juliana da Silva MenezesDissertacaoPt2.pdf: 1449580 bytes, checksum: a75c6c34c790ed22db757094de03b7a2 (MD5) Previous issue date: 2013-02-04Coordenacao de Aperfeicoamento de Pessoal de Nïvel Superiorapplication/pdfporUniversidade Jose do Rosario VellanoPrograma de Mestrado em Ciência AnimalUNIFENASBRZootecnia e Recursos Pesqueirosbovinosextrato vegetalgoiabeiramastitemicrobiologiaCattleguavamastitismicrobiologyplant extractCNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIAAção antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastíticoIn vitro antimicrobial activity of Psidium guajava L. against Staphylococcus aureus isolated from mastitic milk.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UNIFENASinstname:Universidade José do Rosário Vellano (UNIFENAS)instacron:UNIFENASORIGINALJuliana da Silva MenezesDissertacaoPt2.pdfapplication/pdf1449580http://tede2.unifenas.br:8080/tede/bitstream/jspui/137/1/Juliana+da+Silva+MenezesDissertacaoPt2.pdfa75c6c34c790ed22db757094de03b7a2MD51jspui/1372016-05-02 10:55:35.404oai:tede2.unifenas.br:jspui/137Biblioteca Digital de Teses e Dissertaçõeshttp://tede2.unifenas.br:8080/jspui/http://tede2.unifenas.br:8080/oai/requestbiblioteca@unifenas.br||biblioteca@unifenas.bropendoar:2016-05-02T13:55:35Biblioteca Digital de Teses e Dissertações da UNIFENAS - Universidade José do Rosário Vellano (UNIFENAS)false |
dc.title.por.fl_str_mv |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
dc.title.alternative.eng.fl_str_mv |
In vitro antimicrobial activity of Psidium guajava L. against Staphylococcus aureus isolated from mastitic milk. |
title |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
spellingShingle |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico Menezes, Juliana da Silva bovinos extrato vegetal goiabeira mastite microbiologia Cattle guava mastitis microbiology plant extract CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA |
title_short |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
title_full |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
title_fullStr |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
title_full_unstemmed |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
title_sort |
Ação antimicrobiana in vitro de Psidium guajava L. contra Staphylococcus aureus isolados de leite mastítico |
author |
Menezes, Juliana da Silva |
author_facet |
Menezes, Juliana da Silva |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Fiorini, João Evangelista |
dc.contributor.advisor1ID.fl_str_mv |
CPF:05657512634 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/6320803631314170 |
dc.contributor.referee1.fl_str_mv |
Oliveira, Nelma de Mello Silva |
dc.contributor.referee1ID.fl_str_mv |
CPF:82933499720 |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0957577806208187 |
dc.contributor.referee2.fl_str_mv |
Boriollo, Marcelo Fabiano Gomes |
dc.contributor.referee2ID.fl_str_mv |
CPF:19025023886 |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3082697882570018 |
dc.contributor.authorID.fl_str_mv |
CPF:08937934698 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3329558008036765 |
dc.contributor.author.fl_str_mv |
Menezes, Juliana da Silva |
contributor_str_mv |
Fiorini, João Evangelista Oliveira, Nelma de Mello Silva Boriollo, Marcelo Fabiano Gomes |
dc.subject.por.fl_str_mv |
bovinos extrato vegetal goiabeira mastite microbiologia |
topic |
bovinos extrato vegetal goiabeira mastite microbiologia Cattle guava mastitis microbiology plant extract CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA |
dc.subject.eng.fl_str_mv |
Cattle guava mastitis microbiology plant extract |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS BIOLOGICAS::MICROBIOLOGIA |
description |
Mastitis is a disease that affects dairy cattle, an intramammary infection. Staphylococcus aureus are the major mastitis causing bacteria and the milk can be contaminated by the contact with infected teats. For treatment, due to the indiscriminate use of antimicrobials drugs commercialized, the appearing of multi-resistant strains is notorious. An alternative to the antimicrobial resistance problem is the use of plant extracts like Psidium guajava L. The objective of this study was to evaluate, in vitro, the microbial sensibility profile of Staphylococcus aureus isolated from milk samples of cows infected with mastitis, against antimicrobial agents and hydroalcoholic leaf of Psidium guajava L. Plants were harvested in three rural properties located in the municipality of Alfenas/MG region. Sampling animals was not probabilistic. Milk samples were cultured for presence of Staphylococcus sp. Additionally, the isolated bacteria were identified as Staphylococcus aureus and subjected to many tests to check the antimicrobial sensibility. The hydroalcoholic extract of Psidium guajava L. was prepared and antimicrobial tests were performed by the technician in wells. Contamination by Staphylococcus aureus was confirmed in 55% of the analyzed samples. The most effective antibiotics were clindamycin, erythromycin and rifampin. Penicillin G was the antimicrobial that showed the lower levels of sensibility. The hydroalcoholic extract of the leaf of Psidium guajava L. showed antimicrobial activity against all strains of isolated Staphylococcus aureus by inhibiting microbial growth in all tested concentrations. Therefore the use of this plant extract can be an alternative method to combat the increase incidence of microorganisms resistant to antimicrobial drugs sold, besides a potential field of study. |
publishDate |
2013 |
dc.date.available.fl_str_mv |
2013-04-18 |
dc.date.issued.fl_str_mv |
2013-02-04 |
dc.date.accessioned.fl_str_mv |
2016-05-02T13:55:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MENEZES, Juliana da Silva. In vitro antimicrobial activity of Psidium guajava L. against Staphylococcus aureus isolated from mastitic milk.. 2013. 64 f. Dissertação (Mestrado em Zootecnia e Recursos Pesqueiros) - Universidade Jose do Rosario Vellano, Alfenas, 2013. |
dc.identifier.uri.fl_str_mv |
http://tede2.unifenas.br:8080/jspui/handle/jspui/137 |
identifier_str_mv |
MENEZES, Juliana da Silva. In vitro antimicrobial activity of Psidium guajava L. against Staphylococcus aureus isolated from mastitic milk.. 2013. 64 f. Dissertação (Mestrado em Zootecnia e Recursos Pesqueiros) - Universidade Jose do Rosario Vellano, Alfenas, 2013. |
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http://tede2.unifenas.br:8080/jspui/handle/jspui/137 |
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por |
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openAccess |
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Universidade Jose do Rosario Vellano |
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Programa de Mestrado em Ciência Animal |
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UNIFENAS |
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BR |
dc.publisher.department.fl_str_mv |
Zootecnia e Recursos Pesqueiros |
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Universidade Jose do Rosario Vellano |
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