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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
12/12/2012 |
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Data da última atualização: |
09/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DAEMON, E.; MONTEIRO, C. M. O.; MATURANO, R.; SENRA, T. O. S.; CALMON, F.; FAZA, A.; PRATA, M. C. de A.; GEORGOPOULOS, S. L.; OLIVEIRA, L. F. C. DE. |
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Afiliação: |
ERIK DAEMON, UFJF; CAIO MATOS DE OLIVEIRA MONTEIRO, UFRRJ; RALPH MATURANO, UFRRJ; TATIANE DE OLIVEIRA SOUZA SENRA, UFJF; FERNANDA CALMON, UFJF; ALINE FAZA, UFJF; MARCIA CRISTINA DE AZEVEDO PRATA, CNPGL; STEFANOS LEITE GEORGOPOULOS, UFJF; LUIZ FERNANDO CAPPA DE OLIVEIRA, UFJF. |
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Título: |
Spectroscopic evaluation of thymol dissolved by different methods and influence of acaricidal activity against larvae of rhipicephalus microplus (Acari: ixodidae). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Parasitology Research, v. 111, n. 5, p. 1901-1906, 2012. |
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DOI: |
https://doi.org/10.1007/s00436-012-3033-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The acaricidal activity of three thymol formulations was investigated at five concentrations (1.25, 2.5, 5.0, 7.5, and 10.0 mg/ml) on Rhipicephalus microplus larvae, and the behavior of its solubility in these formulations was analyzed. The thymol was dissolved in distilled water plus 1 % dimethylsulfoxide as adjuvant under two heating regimes (water bath in formulation 1 and hot plate in formulation 2) as well as without heating in 50 % ethanol and 50 % water (v/v). The acaricidal activity was assessed by the modified larval packet test, and the solubilization behavior was investigated by ultraviolet-visible spectroscopy, based on the Beer-Lambert law. With formulations 1 and 2, the mortality was greater than 95 % starting at the thymol concentrations of 5.0 and 7.5 mg/ml, respectively, while with formulation 3, this mortality level was reached starting at a concentration of 2.5 mg/ml, showing that the addition of ethanol in the solution enhanced the acaricidal action of thymol. This result was supported by the LC 90 values, which were 3.3, 2.4, and 1.6 mg/ml of thymol for formulations 1, 2, and 3, respectively. This result is related to the better solubility of thymol in the hydroethanolic formulation, since the spectroscopic analysis revealed that the thymol dissolved more completely in this formulation. This fact was evident once the R (2) obtained from the linear regression analysis of the relation absorbance × concentration of the formulations 1, 2, and 3 approached the optimal value (R (2) = 1) in the following sequence: 1, 2, and 3 (0.717, 0.901, and 0.968, respectively). MenosThe acaricidal activity of three thymol formulations was investigated at five concentrations (1.25, 2.5, 5.0, 7.5, and 10.0 mg/ml) on Rhipicephalus microplus larvae, and the behavior of its solubility in these formulations was analyzed. The thymol was dissolved in distilled water plus 1 % dimethylsulfoxide as adjuvant under two heating regimes (water bath in formulation 1 and hot plate in formulation 2) as well as without heating in 50 % ethanol and 50 % water (v/v). The acaricidal activity was assessed by the modified larval packet test, and the solubilization behavior was investigated by ultraviolet-visible spectroscopy, based on the Beer-Lambert law. With formulations 1 and 2, the mortality was greater than 95 % starting at the thymol concentrations of 5.0 and 7.5 mg/ml, respectively, while with formulation 3, this mortality level was reached starting at a concentration of 2.5 mg/ml, showing that the addition of ethanol in the solution enhanced the acaricidal action of thymol. This result was supported by the LC 90 values, which were 3.3, 2.4, and 1.6 mg/ml of thymol for formulations 1, 2, and 3, respectively. This result is related to the better solubility of thymol in the hydroethanolic formulation, since the spectroscopic analysis revealed that the thymol dissolved more completely in this formulation. This fact was evident once the R (2) obtained from the linear regression analysis of the relation absorbance × concentration of the formulations 1, 2, and 3 approached th... Mostrar Tudo |
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Thesaurus Nal: |
Rhipicephalus microplus. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02430naa a2200241 a 4500
001 1942271
005 2024-02-09
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00436-012-3033-4$2DOI
100 1 $aDAEMON, E.
245 $aSpectroscopic evaluation of thymol dissolved by different methods and influence of acaricidal activity against larvae of rhipicephalus microplus (Acari$bixodidae).$h[electronic resource]
260 $c2012
520 $aThe acaricidal activity of three thymol formulations was investigated at five concentrations (1.25, 2.5, 5.0, 7.5, and 10.0 mg/ml) on Rhipicephalus microplus larvae, and the behavior of its solubility in these formulations was analyzed. The thymol was dissolved in distilled water plus 1 % dimethylsulfoxide as adjuvant under two heating regimes (water bath in formulation 1 and hot plate in formulation 2) as well as without heating in 50 % ethanol and 50 % water (v/v). The acaricidal activity was assessed by the modified larval packet test, and the solubilization behavior was investigated by ultraviolet-visible spectroscopy, based on the Beer-Lambert law. With formulations 1 and 2, the mortality was greater than 95 % starting at the thymol concentrations of 5.0 and 7.5 mg/ml, respectively, while with formulation 3, this mortality level was reached starting at a concentration of 2.5 mg/ml, showing that the addition of ethanol in the solution enhanced the acaricidal action of thymol. This result was supported by the LC 90 values, which were 3.3, 2.4, and 1.6 mg/ml of thymol for formulations 1, 2, and 3, respectively. This result is related to the better solubility of thymol in the hydroethanolic formulation, since the spectroscopic analysis revealed that the thymol dissolved more completely in this formulation. This fact was evident once the R (2) obtained from the linear regression analysis of the relation absorbance × concentration of the formulations 1, 2, and 3 approached the optimal value (R (2) = 1) in the following sequence: 1, 2, and 3 (0.717, 0.901, and 0.968, respectively).
650 $aRhipicephalus microplus
700 1 $aMONTEIRO, C. M. O.
700 1 $aMATURANO, R.
700 1 $aSENRA, T. O. S.
700 1 $aCALMON, F.
700 1 $aFAZA, A.
700 1 $aPRATA, M. C. de A.
700 1 $aGEORGOPOULOS, S. L.
700 1 $aOLIVEIRA, L. F. C. DE
773 $tParasitology Research$gv. 111, n. 5, p. 1901-1906, 2012.
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Embrapa Gado de Leite (CNPGL) |
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| 4. |  | CUNHA, A. L. B. da; BATISTA, A. C.; SENRA, T. V.; OKA, J. M.; CHAVES, F. C. M. Germinação e vigor de sementes de Piper hispidum Sw. em função do tempo de armazenamento, ambientes e embalagens. In: REUNIÃO ANUAL DA SOCIEDADE INTERAMERICANA DE HORTICULTURA TROPICAL, 61., 2015, Manaus. Anais... Brasília, DF: Embrapa, 2015. p. 144.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 5. | | CARNEIRO, A. V.; MARTINS, P. do C.; ALVARES, J. G.; CASTRO, G. DE S.; NETO, A.; PIZZOL, T. S.; VIANA, E.; ARAÚJO, P. B. DE; SENRA, T. Desempenho financeiro de propriedades leiteiras em Minas Gerais e Goiás. In: CONGRESSO PANAMERICANO DE LA LECHE, 12., 2012, Assuncion. Anais... Assuncion: [s.n.], 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | MARTINS, P. do C.; CARNEIRO, A. V.; ÁLVARES, J. G.; OLIVEIRA, W. X. de; NETO, A.; RIBEIRO, D. B. de C. L.; ARAÚJO, P. B. de; SENRA, T. Desempenho financeiro de propriedades leiteiras selecionadas. Boletim CBLeite, Juiz de Fora, v. 5, n. 15, p. 40-42, 2011.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | BRAGA, I. G.; BATISTA, A. C.; CUNHA, A. L. B. da; LIMA, S. C. de S.; GUIMARÃES, G. S. dos S.; SENRA, T. V.; CHAVES, F. C. M. Influência de tipos de embalagens e locais de armazenamento na germinação e vigor de sementes de Piper marginatum Jacq. In: REUNIÃO ANUAL DA SOCIEDADE INTERAMERICANA DE HORTICULTURA TROPICAL, 61., 2015, Manaus. Anais... Brasília, DF: Embrapa, 2015. p. 145.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 8. | | ARAÚJO, L. X.; NOVATO, T. P. L.; ZERINGOTA, V.; MATOS, R. S.; SENRA, T. O. S.; MATURANO, R.; PRATA, M. C. de A.; DAEMON, E.; MONTEIRO, C. M. O. Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions. Parasitology Research, v. 114, n. 9, p. 3271-3276, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | SANTOS, M. S. dos; BATISTA, A. C.; CUNHA, A. L. B. da; LIMA, S. C. de S.; GUIMARÃES, G. S. dos S.; SENRA, T. V.; CHAVES, F. C. M. Influência de tipos de embalagens e locais de armazenamento na germinaçao e vigor de sementes de Piper tuberculatum Jacq. In: REUNIÃO ANUAL DA SOCIEDADE INTERAMERICANA DE HORTICULTURA TROPICAL, 61., 2015, Manaus. Anais... Brasília, DF: Embrapa, 2015. p. 145.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 10. | | DAEMON, E.; MONTEIRO, C. M. O.; MATURANO, R.; SENRA, T. O. S.; CALMON, F.; FAZA, A.; PRATA, M. C. de A.; GEORGOPOULOS, S. L.; OLIVEIRA, L. F. C. DE. Spectroscopic evaluation of thymol dissolved by different methods and influence of acaricidal activity against larvae of rhipicephalus microplus (Acari: ixodidae). Parasitology Research, v. 111, n. 5, p. 1901-1906, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 10 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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