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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-5996
Vol. 12, No. 1, 2013, pp. 99-103
Bioline Code: pr13016
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 12, No. 1, 2013, pp. 99-103

 en Chemical Composition and Insecticidal Activity of the Essential Oil of the Aerial Parts of Ostericum grosseserratum check for this species in other resources (Maxim) Kitag (Umbelliferae)
Chu, Sha Sha; Liu, Qi Zhi; Du, Shu Shan & Liu, Zhi Long

Abstract

Purpose: To investigate the chemical composition and insecticidal activity of the essential oil of the aerial parts of Ostericum grosseserratum check for this species in other resources against the maize weevil, Sitophilus zeamais check for this species in other resources
Methods: Steam distillation of the aerial parts of O. grosseserratum during the flowering stage was carried out using a Clavenger apparatus in order to obtain its volatile oil content. Gas chromatography/mass spectrometric (GC/MS) analyses (HP-5MS column) of the essential oil were performed and its contact and fumigant activity determined.
Results: A total of 43 components of the essential oil were identified. The principal compounds were (d)-limonene (16.2 %), 4-terpineol (13.5 %), myristicin (11.3 %), γ-terpineol (8.3 %), β-pinene (5.1 %), β- caryophyllene (4.6 %) and linalool (4.1 %). The oil exhibited contact toxicity against adult S. zeamais with lethal concentration (LC50) value of 17.97 μg/adult. The essential oils also possessed fumigant toxicity against S. zeamais with LC50 value of 13.70 mg/L air.
Conclusion: The study indicates that the essential oil of O. grosseserratum has a potential to be developed into a natural fumigant/insecticide for the control of grain storage insects.

Keywords
Ostericum grosseserratum; Sitophilus zeamais; Insecticidal, Contact toxicity; Fumigant; Essential oil

 
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