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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-9827
Vol. 14, No. 9, 2015, pp. 1673-1678
Bioline Code: pr15218
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 14, No. 9, 2015, pp. 1673-1678

 en Gas Chromatography-Mass Spectrometric Analysis of Nematicidal Essential Oil of Valeriana amurensis check for this species in other resources P Smirn ex Kom (Valerianaceae) Roots and its Activity against Heterodera avenae check for this species in other resources
Li, Yun Chao; Ji, Hua & Li, Hong Tao

Abstract

Purpose: To investigate the chemical composition and nematicidal activity of the essential oil of Valeriana amurensis check for this species in other resources roots against cereal cyst nematodes ( Heterodera avenae check for this species in other resources ).
Methods: The essential oil of V. amurensis roots was obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromaotography-mass spectrometry (GC-MS). The nematicidal activity of the essential oil and its major constituents was determined against second stage juveniles of H. avenae.
Results: A total of 33 components of the essential oil were identified. The major constituents were bornyl acetate (12.5 %), patchoulol (11.6 %), caryophyllene (8.2 %), 3-methylvaleric acid (7.3 %) and isovaleric acid (6.5 %). The essential oil exhibited nematicidal activity against H. avenae with a medium lethal concentration (LC50) value of 311.6 μg/mL. The major constituents, isovaleric acid and 3- methylvaleric acid, exhibited nematicidal activity against H. avenae with LC50 of 218.2 and 683.8 μg/mL, respectively.
Conclusion: The study indicates that the essential oil of V. amurensis roots and its two major constituents, isovaleric acid and 3-methylvaleric acid, have a potential to be developed to natural nematicides for the control of cereal cyst nematodes.

Keywords
Valeriana amurensis; Heterodera avenae; Nematicidal activity; Isovaleric acid; 3- Methylvaleric acid; Essential oil; Cereal cyst nematodes

 
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