Data/hora: 13/06/2024 12:01:12

Provedor de dados: | 3
País: | Brazil
Título: | Volatile chemical composition and bioactivities from Colombian Kyllinga pumila Michx (Cyperaceae) essential oil
Autores: | Jaramillo-Colorado, Beatriz Eugenia; Martínez-Cáceres, Eduardo Luis; Duarte-Restrepo, Edisson.
Data: | 2016-12-08
Ano: | 2016
Palavras-chave: | Essential oils; Repellent activity; Fumigant; Tribolium castaneum; Phytotoxic; DPPH.
Resumo: | The essential oil from the fresh leaves of Kyllinga pumila (Michx) was obtained by hydrodistillation and characterized by gas chromatography-mass spectrometry (GC-MS). Twenty-eight volatile compounds were identified, major constituents of the oil were Methyl E,E-10,11-epoxyfarnesoate (43.8%), β-elemene (12.5%), Z-caryophyllene (11.3%), germacrene D (7.1%) and E-caryophyllene (5.6%). Repellent and fumigant activities of the oil against Tribolium castaneum Herbst (Coleoptera: Tenebrionidae), were done using the area preference method. Additionally, we studied their antioxidant and phytotoxic effects. Essential oils exhibited a dose-dependent repellent activity, with values 90% at the applied concentration (0.01%), for both two and four hour’s exposure. Essential oil from K. pumila showed 92% mortality at 500 µL L-1 air against T. castaneum on 24 hours of exposure. The value LC50 was 153.4 µL L-1.  With moderate selective phytotoxic effects on L. perenne root growth (±70% inhibition). Kyllinga pumila shows high antioxidant potential (91.5%), an effect that is comparable with ascorbic acid (92.9%) used as a standard. The results indicated that K. pumila essential oil could be a promising alternative to new natural antioxidants, repellents, and biocides.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32386

10.4025/actascibiolsci.v38i3.32386

Editor: | Universidade Estadual De Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32386/pdf
Formato: | application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 38, n. 3 (2016); 273-282

Acta Scientiarum. Biological Sciences; v. 38, n. 3 (2016); 273-282

1807-863X

1679-9283

Fonte: | Direitos autorais 2016 Acta Scientiarum. Biological Sciences