Data/hora: 05/06/2024 15:23:46

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