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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. 1, 2015, pp. 111-116
Bioline Code: pr15016
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 14, No. 1, 2015, pp. 111-116

 en Larvicidal Activity of Essential Oil Derived from Illicium henryi Diels (Illiciaceae) Leaf
Liu, Xin Chao; Liu, Qi Yong; Zhou, Ligang & Liu, Zhi Long

Abstract

Purpose: To determine larvicidal activity of the essential oil derived from Illicium difengpi Diels (Illiciaceae) leaf and stem against the larvae of Aedes albopictus check for this species in other resources SkuseD
Methods: The essential oil of I. henryi leaves was obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromaotography-mass spectrometry (GC-MS). The activity of the oil was evaluated, using World Health Organization (WHO) procedures, against the fourth instar larvae of A. albopictus for 24 h, and larval mortalities recorded at various essential oil concentrations ranging from 12.5 - 200 μg/mL.
Results: A total of 25 components of the essential oil of I. henryi were identified and the principal compounds in the essential oil were safrole (54.09 %), myristicin (22.24 %), and 1, 8-cineole (5.43 %). The essential oil has higher content of (76.48 %) of phenylpropanoids than monoterpenoids (10.79 %) and sesquiternoids (11.72 %). The essential oil exhibited larvicidal activity against A. albopictus with a median lethal concentration (LC50) of 35.43 μg/mL.
Conclusion: The findings obtained indicate that the essential oil of I. henryi leaves has potentials for use in the control of A. albopictus larvae and may be useful in the search for newer, safer and more effective natural compounds as larvicides.

Keywords
Illicium henryi; Aedes albopictus; Larvicidal activity; Mosquito, Essential oil; Phenylpropanoids; Monoterpenoids; Sesquiternoids

 
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