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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
11/08/2022 |
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Data da última atualização: |
23/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAETANO, A. R. S.; CARDOSO, M. G.; RESENDE, M. L. V.; CHALFUON, S. M.; MARTINS, M. A.; GOMES, H. G.; ANDRADE, M. E. R.; BRANDÃO, R. M.; CAMPOLINA, G. A.; NELSON, D. L.; OLIVEIRA, J. E. de. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Antifungal activity of poly(ε-caprolactone) nanoparticles incorporated with Eucalyptus essential oils against Hemileia vastatrix. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Letters in Applied Microbiology, 2022. |
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Páginas: |
14 p. |
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ISSN: |
0266-8254 |
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DOI: |
10.1111/lam.13782 |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee (Coffea L.) is one of the main crops produced globally. Its contamination by the fungus Hemileia vastatrix Berkeley and Broome has been economically detrimental for producers. The objective of this work was to extract and characterize the essential oils from Eucalyptus citriodora Hook, Eucalyptus camaldulensis Dehn and Eucalyptus grandis Hill ex Maiden, produce and characterize nanoparticles containing these essential oils and evaluate the in vivo and in vitro antifungal activity of free and nanoencapsulated essential oils. The principal constituent of the essential oil from E. citriodora was citronellal; that from E. grandis was ?-pinene; and that from E. camaldulensis was 1,8-cineol. The in vitro antifungal activity against the fungus H. vastatrix was 100% at a concentration of 1000 ?l l?1 for all the oils and nanoparticles containing these natural products. The sizes of the nanoparticles produced with the essential oils from E. citriodora, E. camaldulensis and E. grandis were 40213 nm, 27533 nm and 3285 nm, respectively, with surface charges of ?118 mV, ?924 mV and ? 676 mV, respectively. Fourier transform infrared analyses proved that the encapsulation of essential oils occurred in the polymeric matrix of poly(?-caprolactone). The incorporation of essential oils into biodegradable poly(?-caprolactone) nanoparticles increased their efficiency as biofungicides in the fight against coffee rust, decreasing the severity of the disease by up to 9075% after treatment with the nanoparticles containing the essential oil from E. grandis. MenosCoffee (Coffea L.) is one of the main crops produced globally. Its contamination by the fungus Hemileia vastatrix Berkeley and Broome has been economically detrimental for producers. The objective of this work was to extract and characterize the essential oils from Eucalyptus citriodora Hook, Eucalyptus camaldulensis Dehn and Eucalyptus grandis Hill ex Maiden, produce and characterize nanoparticles containing these essential oils and evaluate the in vivo and in vitro antifungal activity of free and nanoencapsulated essential oils. The principal constituent of the essential oil from E. citriodora was citronellal; that from E. grandis was ?-pinene; and that from E. camaldulensis was 1,8-cineol. The in vitro antifungal activity against the fungus H. vastatrix was 100% at a concentration of 1000 ?l l?1 for all the oils and nanoparticles containing these natural products. The sizes of the nanoparticles produced with the essential oils from E. citriodora, E. camaldulensis and E. grandis were 40213 nm, 27533 nm and 3285 nm, respectively, with surface charges of ?118 mV, ?924 mV and ? 676 mV, respectively. Fourier transform infrared analyses proved that the encapsulation of essential oils occurred in the polymeric matrix of poly(?-caprolactone). The incorporation of essential oils into biodegradable poly(?-caprolactone) nanoparticles increased their efficiency as biofungicides in the fight against coffee rust, decreasing the severity of the disease by up to 9075% after treatment wit... Mostrar Tudo |
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Palavras-Chave: |
Coffee tree rust; Microbiological activity; Polymeric nanoparticles. |
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Categoria do assunto: |
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Marc: |
LEADER 02505naa a2200313 a 4500
001 2145379
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
022 $a0266-8254
024 7 $a10.1111/lam.13782$2DOI
100 1 $aCAETANO, A. R. S.
245 $aAntifungal activity of poly(ε-caprolactone) nanoparticles incorporated with Eucalyptus essential oils against Hemileia vastatrix.$h[electronic resource]
260 $c2022
300 $a14 p.
520 $aCoffee (Coffea L.) is one of the main crops produced globally. Its contamination by the fungus Hemileia vastatrix Berkeley and Broome has been economically detrimental for producers. The objective of this work was to extract and characterize the essential oils from Eucalyptus citriodora Hook, Eucalyptus camaldulensis Dehn and Eucalyptus grandis Hill ex Maiden, produce and characterize nanoparticles containing these essential oils and evaluate the in vivo and in vitro antifungal activity of free and nanoencapsulated essential oils. The principal constituent of the essential oil from E. citriodora was citronellal; that from E. grandis was ?-pinene; and that from E. camaldulensis was 1,8-cineol. The in vitro antifungal activity against the fungus H. vastatrix was 100% at a concentration of 1000 ?l l?1 for all the oils and nanoparticles containing these natural products. The sizes of the nanoparticles produced with the essential oils from E. citriodora, E. camaldulensis and E. grandis were 40213 nm, 27533 nm and 3285 nm, respectively, with surface charges of ?118 mV, ?924 mV and ? 676 mV, respectively. Fourier transform infrared analyses proved that the encapsulation of essential oils occurred in the polymeric matrix of poly(?-caprolactone). The incorporation of essential oils into biodegradable poly(?-caprolactone) nanoparticles increased their efficiency as biofungicides in the fight against coffee rust, decreasing the severity of the disease by up to 9075% after treatment with the nanoparticles containing the essential oil from E. grandis.
653 $aCoffee tree rust
653 $aMicrobiological activity
653 $aPolymeric nanoparticles
700 1 $aCARDOSO, M. G.
700 1 $aRESENDE, M. L. V.
700 1 $aCHALFUON, S. M.
700 1 $aMARTINS, M. A.
700 1 $aGOMES, H. G.
700 1 $aANDRADE, M. E. R.
700 1 $aBRANDÃO, R. M.
700 1 $aCAMPOLINA, G. A.
700 1 $aNELSON, D. L.
700 1 $aOLIVEIRA, J. E. de
773 $tLetters in Applied Microbiology, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
21/12/2018 |
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Data da última atualização: |
27/12/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MONTAGNER, D. B.; EUCLIDES, V. P. B.; BARBOSA, L. F.; ARAUJO, A. R. de; SOUSA, C. C. C. |
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Afiliação: |
DENISE BAPTAGLIN MONTAGNER, CNPGC; VALERIA PACHECO BATISTA EUCLIDES, CNPGC; Leandro Francisco Barbosa, Programa de Pós-Graduação em Zootecnia/Universidade Federal da Grande Dourados - UFGD; ALEXANDRE ROMEIRO DE ARAUJO, CNPGC; Caryze Cristine Cardoso Sousa, Programa de Pós-Graduação em Zootecnia/Universidade Federal da Grande Dourados - UFGD. |
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Título: |
Productive responses in Mombça grass receiving nitrogen doses under intermittent stockins. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Viçosa: Sociedade Brasileira de Zootecnia; Brasília, DF: Associação Brasileira de Zootecnistas. |
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Idioma: |
Inglês |
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Conteúdo: |
The mombaça grass (Panicum maximum cv. Mombaça) is the most tropical forage used in intensive production systems on Brazil. In these systems, the nitrogen doses use is a form of intensification but it is necessary to find a balance between grazing management an use of nitrogen due to potential of response of mombaça grass. The objective of this work was to evaluate herbage accumulation, sward structural characteristics and animal production in mombaça grass pastures receiving nitrogen doses and managed with intermittent grazing. |
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Palavras-Chave: |
Herbage accumulation; Per area gain; Sward height. |
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Thesaurus NAL: |
Average daily gain. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189232/1/Productive-responses-in-Mombaca-grass-receiving.pdf
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Marc: |
LEADER 01425nam a2200205 a 4500
001 2102402
005 2018-12-27
008 2018 bl uuuu u00u1 u #d
100 1 $aMONTAGNER, D. B.
245 $aProductive responses in Mombça grass receiving nitrogen doses under intermittent stockins.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Viçosa: Sociedade Brasileira de Zootecnia; Brasília, DF: Associação Brasileira de Zootecnistas.$c2018
520 $aThe mombaça grass (Panicum maximum cv. Mombaça) is the most tropical forage used in intensive production systems on Brazil. In these systems, the nitrogen doses use is a form of intensification but it is necessary to find a balance between grazing management an use of nitrogen due to potential of response of mombaça grass. The objective of this work was to evaluate herbage accumulation, sward structural characteristics and animal production in mombaça grass pastures receiving nitrogen doses and managed with intermittent grazing.
650 $aAverage daily gain
653 $aHerbage accumulation
653 $aPer area gain
653 $aSward height
700 1 $aEUCLIDES, V. P. B.
700 1 $aBARBOSA, L. F.
700 1 $aARAUJO, A. R. de
700 1 $aSOUSA, C. C. C.
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