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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
21/12/2009 |
Data da última atualização: |
08/07/2013 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
CORRÊA, T. R. A.; SCRAMIN, J. A.; ASSIS, O. B. G. de; FORATO, L. A.; BERNARDES FILHO, R. |
Afiliação: |
ODILIO BENEDITO GARRIDO DE ASSIS, CNPDIA; LUCIMARA APARECIDA FORATO, CNPDIA; RUBENS BERNARDES FILHO, CNPDIA. |
Título: |
Nanofilmes de zeínas com própolis analisados por microscopia de força atômica. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 5., 2009, São Carlos. Anais... São Carlos: Embrapa Instrumentação Agropecuária, 2009. p. 104-106. Editado por Odílio Benedito Garrido de Assis; Wilson Tadeu Lopes da Silva; Luiz Henrique Capparelli Mattoso. |
Idioma: |
Português |
Palavras-Chave: |
WORKSHOP. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/85635/1/Proci-09.00230.pdf
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Marc: |
LEADER 00712nam a2200157 a 4500 001 1578637 005 2013-07-08 008 2009 bl uuuu u00u1 u #d 100 1 $aCORRÊA, T. R. A. 245 $aNanofilmes de zeínas com própolis analisados por microscopia de força atômica. 260 $aIn: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 5., 2009, São Carlos. Anais... São Carlos: Embrapa Instrumentação Agropecuária, 2009. p. 104-106. Editado por Odílio Benedito Garrido de Assis; Wilson Tadeu Lopes da Silva; Luiz Henrique Capparelli Mattoso.$c2009 653 $aWORKSHOP 700 1 $aSCRAMIN, J. A. 700 1 $aASSIS, O. B. G. de 700 1 $aFORATO, L. A. 700 1 $aBERNARDES FILHO, R.
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Embrapa Instrumentação (CNPDIA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
12/12/2012 |
Data da última atualização: |
24/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
LAPORT, M. S.; MARINHO, P. R.; SANTOS, O. C. DA S.; ALMEIDA, P. DE; ROMANOS, M. T. V.; MURICY, G.; BRITO, M. A. V. P. e; GIAMBIAGI-DE-MARVAL, M. |
Afiliação: |
MARINELLA SILVA LAPORTE, UFRJ; PALLOMA RODRIGUES MARINHO, UFRJ; OLINDA CABRAL DA SILVA SANTOS, UFRJ; PAULA DE ALMEIDA, UFRJ; MARIA TERESA VILLELA ROMANOS, UFRJ; GUILHERME MURICY, UFRJ; MARIA APARECIDA V PAIVA E BRITO, CNPGL; MARCIA GIAMBIAGI-DE-MARVAL, UFRJ. |
Título: |
Antimicrobial activity of marine sponges against coagulase-negative staphylococci isolated from bovine mastitis. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Veterinary Microbiology, v. 155, p. 362-368, 2012. |
Idioma: |
Inglês |
Conteúdo: |
Bovine mastitis remains worldwide a major challenge for the dairy industry despite the widespread implementation of control strategies. The increasing number of coagulasenegative staphylococci (CNS) causing mastitis and of bacteria resistant to conventional antibiotics has become a serious problem in recent years. Marine sponges are a rich source of bioactive compounds, and many species can be useful for the development of new antimicrobial drugs. In the present study, 49 CNS strains were isolated from bovine mastitis cases from 21 different dairy herds kept at farms in Southeast Brazil. Strains were analyzed for antimicrobial susceptibility and mecA gene detection. Fifty-nine percent of the CNS strains were resistant to at least one of the drugs tested and 12.2% were classified as multiresistant. Three strains carried the mecA gene, confering resistance to the betalactamic antibiotics. In addition, the CNS strains were submitted to in vitro screening for antimicrobial activities of extracts from marine sponges. Extracts from the sponge species Cinachyrella sp., Haliclona sp. and Petromica citrina showed antibacterial activity against 61% of the CNS strains, including strains resistant to conventional antibiotics. Extracts from P. citrina showed the largest spectrum of inhibitory activity. The aqueous extract inhibited 51% of the CNS strains and presented a bactericidal effect over susceptible and multiresistant-bacteria at a minimal inhibitory concentration of 1.024 mg/ml. This study shows the potential of marine sponges as new sources of antibiotics and disinfectants for the control of CNS involved in bovine mastitis. MenosBovine mastitis remains worldwide a major challenge for the dairy industry despite the widespread implementation of control strategies. The increasing number of coagulasenegative staphylococci (CNS) causing mastitis and of bacteria resistant to conventional antibiotics has become a serious problem in recent years. Marine sponges are a rich source of bioactive compounds, and many species can be useful for the development of new antimicrobial drugs. In the present study, 49 CNS strains were isolated from bovine mastitis cases from 21 different dairy herds kept at farms in Southeast Brazil. Strains were analyzed for antimicrobial susceptibility and mecA gene detection. Fifty-nine percent of the CNS strains were resistant to at least one of the drugs tested and 12.2% were classified as multiresistant. Three strains carried the mecA gene, confering resistance to the betalactamic antibiotics. In addition, the CNS strains were submitted to in vitro screening for antimicrobial activities of extracts from marine sponges. Extracts from the sponge species Cinachyrella sp., Haliclona sp. and Petromica citrina showed antibacterial activity against 61% of the CNS strains, including strains resistant to conventional antibiotics. Extracts from P. citrina showed the largest spectrum of inhibitory activity. The aqueous extract inhibited 51% of the CNS strains and presented a bactericidal effect over susceptible and multiresistant-bacteria at a minimal inhibitory concentration of 1.024 mg/ml. ... Mostrar Tudo |
Palavras-Chave: |
Atividade antibacteriana; Bacteria resistente a antibiotico; Coagulase-negative staphylococci; Esponja marinha; Mastite bovina. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02495naa a2200265 a 4500 001 1942237 005 2023-03-24 008 2012 bl uuuu u00u1 u #d 100 1 $aLAPORT, M. S. 245 $aAntimicrobial activity of marine sponges against coagulase-negative staphylococci isolated from bovine mastitis.$h[electronic resource] 260 $c2012 520 $aBovine mastitis remains worldwide a major challenge for the dairy industry despite the widespread implementation of control strategies. The increasing number of coagulasenegative staphylococci (CNS) causing mastitis and of bacteria resistant to conventional antibiotics has become a serious problem in recent years. Marine sponges are a rich source of bioactive compounds, and many species can be useful for the development of new antimicrobial drugs. In the present study, 49 CNS strains were isolated from bovine mastitis cases from 21 different dairy herds kept at farms in Southeast Brazil. Strains were analyzed for antimicrobial susceptibility and mecA gene detection. Fifty-nine percent of the CNS strains were resistant to at least one of the drugs tested and 12.2% were classified as multiresistant. Three strains carried the mecA gene, confering resistance to the betalactamic antibiotics. In addition, the CNS strains were submitted to in vitro screening for antimicrobial activities of extracts from marine sponges. Extracts from the sponge species Cinachyrella sp., Haliclona sp. and Petromica citrina showed antibacterial activity against 61% of the CNS strains, including strains resistant to conventional antibiotics. Extracts from P. citrina showed the largest spectrum of inhibitory activity. The aqueous extract inhibited 51% of the CNS strains and presented a bactericidal effect over susceptible and multiresistant-bacteria at a minimal inhibitory concentration of 1.024 mg/ml. This study shows the potential of marine sponges as new sources of antibiotics and disinfectants for the control of CNS involved in bovine mastitis. 653 $aAtividade antibacteriana 653 $aBacteria resistente a antibiotico 653 $aCoagulase-negative staphylococci 653 $aEsponja marinha 653 $aMastite bovina 700 1 $aMARINHO, P. R. 700 1 $aSANTOS, O. C. DA S. 700 1 $aALMEIDA, P. DE 700 1 $aROMANOS, M. T. V. 700 1 $aMURICY, G. 700 1 $aBRITO, M. A. V. P. e 700 1 $aGIAMBIAGI-DE-MARVAL, M. 773 $tVeterinary Microbiology$gv. 155, p. 362-368, 2012.
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