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Registro Completo |
Biblioteca(s): |
Embrapa Roraima. |
Data corrente: |
21/01/2008 |
Data da última atualização: |
20/04/2012 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FERREIRA, G. B.; SANTOS, J. B. dos; SILVA FILHO, J. L. da; PEDROSA, M. B.; FREIRE, R. M. M.; ALENCAR, A. R. de; OLIVEIRA, W. P.; VALENÇA, A. R.; SILVA, L. C. P. da; FARIAS, D. R. de; SAMPAIO, L. R.; RIBEIRO, R. R. F.; SOUZA FILHO, J. S.; FERNANDES NETO, J. T.; SOARES, A. K. C. |
Afiliação: |
Gilvan Barbosa Ferreira, CPAF-RR; João Batista dos Santos, EBDA; João Luiz da Silva Filho, Embrapa Algodão; Murilo Barros Pedrosa, Fundação Bahia; Rosa Maria Mendes Freire, Embrapa Algodão; Arnaldo Rocha de Alencar, Embrapa Algodão; Welinton Pereira de O. |
Título: |
Crescimento e produção do algodoeiro em função da adubação com fósforo, potássio e magnésio no cerrado baiano, Safra 2003/2004. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ALGODÃO, 6., Uberlândia, MG, 2007. |
Idioma: |
Português |
Palavras-Chave: |
Gossypium Hirsutum L; Nutrição Mineral. |
Thesagro: |
Produtividade; Regulador de Crescimento. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01025naa a2200325 a 4500 001 1691535 005 2012-04-20 008 2007 bl --- 0-- u #d 100 1 $aFERREIRA, G. B. 245 $aCrescimento e produção do algodoeiro em função da adubação com fósforo, potássio e magnésio no cerrado baiano, Safra 2003/2004. 260 $c2007 650 $aProdutividade 650 $aRegulador de Crescimento 653 $aGossypium Hirsutum L 653 $aNutrição Mineral 700 1 $aSANTOS, J. B. dos 700 1 $aSILVA FILHO, J. L. da 700 1 $aPEDROSA, M. B. 700 1 $aFREIRE, R. M. M. 700 1 $aALENCAR, A. R. de 700 1 $aOLIVEIRA, W. P. 700 1 $aVALENÇA, A. R. 700 1 $aSILVA, L. C. P. da 700 1 $aFARIAS, D. R. de 700 1 $aSAMPAIO, L. R. 700 1 $aRIBEIRO, R. R. F. 700 1 $aSOUZA FILHO, J. S. 700 1 $aFERNANDES NETO, J. T. 700 1 $aSOARES, A. K. C. 773 $tIn: CONGRESSO BRASILEIRO DE ALGODÃO, 6., Uberlândia, MG, 2007.
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Embrapa Roraima (CPAF-RR) |
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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: |
21/08/2021 |
Data da última atualização: |
21/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, N. P. da; PEREIRA, E. do C. R. L.; DUARTE, L. M.; FREITAS, J. C. de O.; ALMEIDA, C. G. de; SILVA, T. P. da; MELO, R. C. N.; APOLONIO, A. C. M.; OLIVEIRA, M. A. L. de; BRANDAO, H. de M.; PITTELLA, F.; FABRI, R. L.; TAVARES, G. D.; PINTO, P. de F. |
Afiliação: |
NATALIA PRADO DA SILVA, Universidade Federal de Juiz de Fora; ELOA DO CARMO RAPOZO LAVINAS PEREIRA, Universidade Federal de Juiz de Fora; LUCAS MATTOS DUARTE, Universidade Federal de Juiz de Fora; JHAMINE CAROLINE DE OLIVEIRA FREITAS, Universidade Federal de Juiz de Fora; CAMILA GUIMARAES DE ALMEIDA; THIAGO PEREIRA DA SILVA, Universidade Federal de Juiz de Fora; ROSSANA C. N. MELO, Universidade Federal de Juiz de Fora; ANA CAROLINA MORAIS APOLONIO, Universidade Federal de Juiz de Fora; MARCONE AUGUSTO LEAL DE OLIVEIRA, Universidade Federal de Juiz de Fora; HUMBERTO DE MELLO BRANDAO, CNPGL; FREDERICO PITTELLA, Universidade Federal de Juiz de Fora; RODRIGO LUIZ FABRI, Universidade Federal de Juiz de Fora; GUILHERME DINIZ TAVARES, Universidade Federal de Juiz de Fora; PRISCILA DE FARIA PINTO, Universidade Federal de Juiz de Fora. |
Título: |
Improved anti-Cutibacterium acnes activity of tea tree oil-loaded chitosan-poly(ε-caprolactone) core-shell nanocapsules. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Colloids and Surfaces B: Biointerfaces, v. 196, 111371, 2020. |
DOI: |
https://doi.org/10.1016/j.colsurfb.2020.111371 |
Idioma: |
Inglês |
Conteúdo: |
The purpose of this study was to develop tea tree oil (TTO)-loaded chitosan-poly(?-caprolactone) core-shell nanocapsules (NC-TTO-Ch) aiming the topical acne treatment. TTO was analyzed by gas chromatographymass spectrometry, and nanocapsules were characterized regarding mean particle size (Z-average), polydispersity index (PdI), zeta potential (ZP), pH, entrapment efficiency (EE), morphology by Atomic Force Microscopy (AFM), and anti-Cutibacterium acnes activity. The main constituents of TTO were terpinen-4-ol (37.11 %), ?-terpinene (16.32 %), ?-terpinene (8.19 %), ?-cimene (6.56 %), and ?-terpineol (6.07 %). NC-TTO-Ch presented Z-average of 268.0 ± 3.8 nm and monodisperse size distribution (PdI < 0.3). After coating the nanocapsules with chitosan, we observed an inversion in ZP to a positive value (+31.0 ± 1.8 mV). This finding may indicate the presence of chitosan on the nanocapsules? surface, which was corroborated by the AFM images. In addition, NC-TTO-Ch showed a slightly acidic pH (~5.0), compatible with topical application. The EE, based on Terpinen-4-ol concentration, was approximately 95 %. This data suggests the nanocapsules? ability to reduce the TTO volatilization. Furthermore, NC-TTO-Ch showed significant anti-C. acnes activity, with a 4× reduction in the minimum inhibitory concentration, compared to TTO and a decrease in C. acnes cell viability, with an increase in the percentage of dead cells (17 %) compared to growth control (6.6 %) and TTO (9.7 %). Therefore, chitosan-poly(?-caprolactone) core-shell nanocapsules are a promising tool for TTO delivery, aiming at the activity against C. acnes for the topical acne treatment. MenosThe purpose of this study was to develop tea tree oil (TTO)-loaded chitosan-poly(?-caprolactone) core-shell nanocapsules (NC-TTO-Ch) aiming the topical acne treatment. TTO was analyzed by gas chromatographymass spectrometry, and nanocapsules were characterized regarding mean particle size (Z-average), polydispersity index (PdI), zeta potential (ZP), pH, entrapment efficiency (EE), morphology by Atomic Force Microscopy (AFM), and anti-Cutibacterium acnes activity. The main constituents of TTO were terpinen-4-ol (37.11 %), ?-terpinene (16.32 %), ?-terpinene (8.19 %), ?-cimene (6.56 %), and ?-terpineol (6.07 %). NC-TTO-Ch presented Z-average of 268.0 ± 3.8 nm and monodisperse size distribution (PdI < 0.3). After coating the nanocapsules with chitosan, we observed an inversion in ZP to a positive value (+31.0 ± 1.8 mV). This finding may indicate the presence of chitosan on the nanocapsules? surface, which was corroborated by the AFM images. In addition, NC-TTO-Ch showed a slightly acidic pH (~5.0), compatible with topical application. The EE, based on Terpinen-4-ol concentration, was approximately 95 %. This data suggests the nanocapsules? ability to reduce the TTO volatilization. Furthermore, NC-TTO-Ch showed significant anti-C. acnes activity, with a 4× reduction in the minimum inhibitory concentration, compared to TTO and a decrease in C. acnes cell viability, with an increase in the percentage of dead cells (17 %) compared to growth control (6.6 %) and TTO (9.7 %). Therefore... Mostrar Tudo |
Palavras-Chave: |
Acne vulgaris; Core-shell nanocapsules; Nanocápsula; Quitosana-poli. |
Thesagro: |
Árvore. |
Thesaurus NAL: |
Chitosan; Tea tree oil. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02809naa a2200373 a 4500 001 2133785 005 2021-08-21 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.colsurfb.2020.111371$2DOI 100 1 $aSILVA, N. P. da 245 $aImproved anti-Cutibacterium acnes activity of tea tree oil-loaded chitosan-poly(ε-caprolactone) core-shell nanocapsules.$h[electronic resource] 260 $c2020 520 $aThe purpose of this study was to develop tea tree oil (TTO)-loaded chitosan-poly(?-caprolactone) core-shell nanocapsules (NC-TTO-Ch) aiming the topical acne treatment. TTO was analyzed by gas chromatographymass spectrometry, and nanocapsules were characterized regarding mean particle size (Z-average), polydispersity index (PdI), zeta potential (ZP), pH, entrapment efficiency (EE), morphology by Atomic Force Microscopy (AFM), and anti-Cutibacterium acnes activity. The main constituents of TTO were terpinen-4-ol (37.11 %), ?-terpinene (16.32 %), ?-terpinene (8.19 %), ?-cimene (6.56 %), and ?-terpineol (6.07 %). NC-TTO-Ch presented Z-average of 268.0 ± 3.8 nm and monodisperse size distribution (PdI < 0.3). After coating the nanocapsules with chitosan, we observed an inversion in ZP to a positive value (+31.0 ± 1.8 mV). This finding may indicate the presence of chitosan on the nanocapsules? surface, which was corroborated by the AFM images. In addition, NC-TTO-Ch showed a slightly acidic pH (~5.0), compatible with topical application. The EE, based on Terpinen-4-ol concentration, was approximately 95 %. This data suggests the nanocapsules? ability to reduce the TTO volatilization. Furthermore, NC-TTO-Ch showed significant anti-C. acnes activity, with a 4× reduction in the minimum inhibitory concentration, compared to TTO and a decrease in C. acnes cell viability, with an increase in the percentage of dead cells (17 %) compared to growth control (6.6 %) and TTO (9.7 %). Therefore, chitosan-poly(?-caprolactone) core-shell nanocapsules are a promising tool for TTO delivery, aiming at the activity against C. acnes for the topical acne treatment. 650 $aChitosan 650 $aTea tree oil 650 $aÁrvore 653 $aAcne vulgaris 653 $aCore-shell nanocapsules 653 $aNanocápsula 653 $aQuitosana-poli 700 1 $aPEREIRA, E. do C. R. L. 700 1 $aDUARTE, L. M. 700 1 $aFREITAS, J. C. de O. 700 1 $aALMEIDA, C. G. de 700 1 $aSILVA, T. P. da 700 1 $aMELO, R. C. N. 700 1 $aAPOLONIO, A. C. M. 700 1 $aOLIVEIRA, M. A. L. de 700 1 $aBRANDAO, H. de M. 700 1 $aPITTELLA, F. 700 1 $aFABRI, R. L. 700 1 $aTAVARES, G. D. 700 1 $aPINTO, P. de F. 773 $tColloids and Surfaces B: Biointerfaces$gv. 196, 111371, 2020.
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