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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
16/06/2020 |
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Data da última atualização: |
16/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NOGUEIRA, J. A. P.; FIGUEIREDO, A.; DUARTE, J. L.; ALMEIDA, F. B. de; SANTOS, M. G.; NASCIMENTO, L. M.; FERNANDES, C. P.; MOURÃO, S. C.; TOSCANO, J. H. B.; ROCHA, L. M.; CHAGAS, A. C. de S. |
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Afiliação: |
Jeane A. P. Nogueira, UFRJ; Amanda Figueiredo, UNESP; Jonatas L. Duarte, UNIFAP; Fernanda B. de Almeida, UNIFAP; Marcelo G. Santos, UERJ; Leonor M. Nascimento, UFRJ; Caio P. Fernandes, UNIFAP; Samanta C. Mourão, UFF; João Henrique B. Toscano, UNESP; Leandro M. Rocha, UFRJ; ANA CAROLINA DE SOUZA CHAGAS, CPPSE. |
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Título: |
Repellency effect of Pilocarpus spicatus A. St.-Hil essential oil and nanoemulsion against Rhipicephalus microplus larvae. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Experimental Parasitology, 215, 107919, aug. 2020. |
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Páginas: |
5 p. |
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DOI: |
https://doi.org/10.1016/j.exppara.2020.107919 |
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Idioma: |
Inglês |
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Conteúdo: |
Rhipicephalus microplus, the cattle tick, is a major cause of economic losses in bovine production. Due to the widespread acaricidal resistance to commercially available products, as well as their toxicity and environmental impact, alternative control methods are required. Nanoformulations produced from plant extracts as bioactive substances are very promising as innovative acaricidal agents. Thus, the aim of this study was to evaluate the in vitro repellent activity of Pilocarpus spicatus essential oil and its nanoemulsion against R. microplus, using larval repellent test (RT). The essential oil was extracted by hydrodistillation, using a Clevenger-type apparatus. The nanoemulsion was prepared with 5% essential oil, 5% tween 80, and 90% water, using the phase inversion method (50 mg/mL). Limonene was the major component (46.8%) of the essential oil, as determined by gas chromatography-mass spectrometry (GC/MS) and confirmed by flame ionization detection (GC/FID). According to the RT results, the essential oil had a repellent activity greater than 69%, from concentrations of 3.12 mg/mL (69.81 ± 10%) to 50 mg/mL (98.10 ± 0.6%), whereas the nanoemulsion at 50 mg/mL presented repellent activities of 97.14 ± 1.37% and 97.89 ± 0.52% 6 and 10 h after treatment, respectively. These values regarding to total repellency were very close to those calculated for mortality corrected by Abbott's formula. The phase inversion method preserved the chemical and physical characteristics of the essential oil since both reached an equal repellent effect at the same concentration. Therefore, P. spicatus essential oil and nanoemulsion had excellent repellent activities against R. microplus larvae, demonstrating its potential for future use as an alternative for tick control. MenosRhipicephalus microplus, the cattle tick, is a major cause of economic losses in bovine production. Due to the widespread acaricidal resistance to commercially available products, as well as their toxicity and environmental impact, alternative control methods are required. Nanoformulations produced from plant extracts as bioactive substances are very promising as innovative acaricidal agents. Thus, the aim of this study was to evaluate the in vitro repellent activity of Pilocarpus spicatus essential oil and its nanoemulsion against R. microplus, using larval repellent test (RT). The essential oil was extracted by hydrodistillation, using a Clevenger-type apparatus. The nanoemulsion was prepared with 5% essential oil, 5% tween 80, and 90% water, using the phase inversion method (50 mg/mL). Limonene was the major component (46.8%) of the essential oil, as determined by gas chromatography-mass spectrometry (GC/MS) and confirmed by flame ionization detection (GC/FID). According to the RT results, the essential oil had a repellent activity greater than 69%, from concentrations of 3.12 mg/mL (69.81 ± 10%) to 50 mg/mL (98.10 ± 0.6%), whereas the nanoemulsion at 50 mg/mL presented repellent activities of 97.14 ± 1.37% and 97.89 ± 0.52% 6 and 10 h after treatment, respectively. These values regarding to total repellency were very close to those calculated for mortality corrected by Abbott's formula. The phase inversion method preserved the chemical and physical characteristics of the... Mostrar Tudo |
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Palavras-Chave: |
Cattle tick; Eco friendly acaricide; O/W nanoemulsion. |
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Thesaurus Nal: |
Livestock. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 16 | |
| 7. |  | SOSA-GÓMEZ, D. R.; ROSADO NETO, G.; SILVA, J. J.; BORGES, E.; CORONEL, N.; SALAS, H. Sternechus pinguis, a missidentification of Sternechus subsignatus (Coleoptera: Curculionidae) in Argentina. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 20., 2004, Gramado. Programa e resumos. Gramado: Sociedade Entomológica do Brasil, 2004. p. 635.| Biblioteca(s): Embrapa Soja. |
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| 8. | | SOSA-GOMEZ, D. R.; CORONEL, N.; BINNECK, E.; ZUCCHI, M. I.; ROSADO-NETO, G. RAPD and mitochondrial DNA analysis of the soybean stalk weevil, Sternechus subsignatus (Coleoptera: Curculionidae. Bulletin of Entomological Research, Cambridge, v. 98, n. 5, p. 475-481, June 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Soja. |
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| 10. | | SANTANA, D. L. Q.; PASSOS, E. E. M.; WARWICK, D. R. N.; MOURA, J. I. L.; ROSADO NETO, G. H. Ocorrência de Plectrophoroides incertus voss (Coleoptera: Curculionidae) em coqueiro no Estado do Sergipe. Anais da Sociedade Entomológica do Brasil, Jaboticabal, v. 25, n. 1, p. 145-146, 1996.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | ANDRADE, D. P. de; QUEIROZ, E. C. de; ROSADO-NETO, G. H.; SANTOS, A. F. dos; QUEIROZ, D. L. de. Ocorrência de três espécies de coleoptera do gênero Homalinotus (Curculionidae: Molytinae) em pupunha (Bactris gasipaes). In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 8., 2009, Colombo. Anais. Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 186). EVINCI. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 14. | | THOMAZ, D. T.; SANTANA, D. L. de Q.; ROSADO-NETO, G. H.; MEDEIROS, A. C. de S.; ABREU, D. C. A. de; WINK, C.; ROVEDO, S. F. Herbivoria de insetos (Coleoptera: Curculionidae) em frutos, sementes e plântulas de guaçatonga (Casearia lasiophylla Eichl), na Região Metropolitana de Curitiba, Paraná, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 21., 2006, Recife. Entomologia: da academia à transferência de tecnologia: resumos. Recife: Sociedade Entomológica do Brasil, 2006. CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 15. | | MARSARO JÚNIOR, A. L.; PEREIRA, P. R. V. da S.; ROSADO NETO, G. H.; KAMINSKI, P. E.; AGUIAR, R. M. de; OLIVEIRA, L. O. Primeiros registros de Sitophilus linearis Herbst e Lonchophorus chevrolati Gyllenhal (Coleoptera: Curculionidae) para o estado de Roraima. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia: Emparn, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 16. | | MARSARO JUNIOR, A. L.; PEREIRA, P. R. V. da S.; ROSADO NETO, G. H.; KAMINSKI, P. E.; AGUIAR, R. M. de; OLIVEIRA, L. O. Primeiros registros de Sitophilus linearis herbst e Lonchophorus chevrolati gyllenhal (Coleoptera: Curculionidae) para o estado de Roraima. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia: Emparn, 2010. 1 CD-ROM| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| Registros recuperados : 16 | |
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