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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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| Registros recuperados : 15 | |
| 1. |  | SILVA, L. V. B. D.; LIMA, V. L. A. de; DANTAS NETO, J.; SOFIATTI, V. Adequação ao reuso e ao descarte do resíduo proveniente do deslintamento químico das sementes de algodoeiro. Engenharia Ambiental, v. 5, n. 2, mai/ago., 2008. p. 053-062 Artigo publicado também no CIGR - INTERNATIONAL CONFERENCE OF AGRICULTURAL ENGINEERING, 2.; CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 37., 2008, Foz do Iguaçu. Technology for all: sharing the knowledge for development: Proceedings......| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - C |
| Biblioteca(s): Embrapa Algodão. |
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| 8. | | QUEIROZ, M. F. DE; FERNANDES, P. D.; DANTAS NETO, J.; ARRIEL, N. H. C.; LEITE, S. F. Fitomassa de frutos de jatropha cultivada em diferentes lâminas de irrigação. In: CONGRESSO BRASILEIRO DE PESQUISA EM PINHÃO-MANSO, 2., 2011, Brasília, DF. Pinhão-manso: focando em soluções sustentáveis para produção de biocombustíveis: anais. Brasília, DF: Embrapa Agroenergia: ABPPM, 2011. 2 p. (Embrapa Agroenergia. Documentos, 005).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 10. | | DANTAS NETO, J.; SILVA, F. de A. S. e; FURTADO, D. A.; MATOS, J. de A. de. Influência da precipitação e idade da planta na produção e composição química do capim-buffel. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 9, p. 1867-74, set. 2000. Título em inglês: Influence of precipitation and plant age on the production and chemical composition of the bufell grass.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | MADEIROS, L. B.; VIEIRA, A. de O.; DANTAS NETO, J.; BELTRÃO, N. E. de M.; AQUINO, B. F. de. Influência da escória siderúrgica sobre a produtividade e crescimento da cana-de-açúcar irrigada. Engenharia ambiental - Espírito Santo do Pinhal, v. 5, n. 3, p. 192-202, set./dez., 2008. p. 192-202| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - C |
| Biblioteca(s): Embrapa Algodão. |
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| 12. | | MEDEIROS, L. B.; SANTOS, R. T. dos; NÓBREGA, J. A. da; DANTAS, NETO, J.; BELTRÃO, N. E. de M. Algodão submetido à adubação de escória siderúrgica: fluorescência da clorofila e área foliar. In: SIMPÓSIO BRASILEIRO SOBRE SILÍCIO NA AGRICULTURA, 4., 2007, Botucatu. Botucatu: UNESP, 2007. p. 91-94| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Algodão. |
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| 13. | | LIMA, M. M. de; AZEVEDO, C. A. V. de; BELTRÃO, N. E. de M.; DANTAS NETO, J.; GONCALVES, C. B.; SANTOS, C. G. da F. Nitrogênio e promotor de crescimento: efeitos no crescimento e desenvolvimento do algodão colorido verde. Revista Brasileira de Engenharia Agrícola e Ambiental, v.10, n. 3, jul.-set., p. 624-628, 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Algodão. |
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| 15. | | QUEIROZ, M. F. de; FERNANDES, P. D.; DANTAS NETO, J.; ARRIEL, N. H. C.; MARINHO, F. J. L.; LEITE, S. F. Crescimento e fenologia de espécies de Jatropha durante a estação chuvosa. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 17, n. 4, p.405?411, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Algodão. |
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| Registros recuperados : 15 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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