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Preparation and Characterization of Liposomes Containing Essential Oil of Eucalyptus camaldulensis Leaf

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Author(s): Somayeh Handali | Eskandar Moghimipour | Ali Zarei Mahmoudabadi | Zahra Ramezani | Nasrin Aghel

Journal: Jundishapur Journal of Natural Pharmaceutical Products
ISSN 1735-7780

Volume: 7;
Issue: 3;
Start page: 117;
Date: 2012;
Original page

Keywords: Eucalyptus camaldulensis | Essential Oil | Liposomes | Antifungal Activity.

ABSTRACT
Background: The increased incidence of fungal resistance has necessitated the need to search for new antifungal agents..Objective: The main objectives of the present study were to investigate the effectiveness of the essential oil of Eucalyptus camaldulensis on dermatophytes growth and to formulate and characterize a liposomal gel loaded with the essential oil..Materials and Methods: The essential oil extracted from the leaves of E. camaldulensis was analyzed by GC-MS. The antifungal activity of this essential oil was determined against Microsporum canis, M. gypseum, Trichophyton rubrum and T. verrucosum, using the well diffusion method. Liposomes were prepared by the freeze-thaw method and evaluation of size distribution was performed using a particle size analyzer. The liposomal gel was prepared using ‘hydroxethyl cellulose (HEC) as the gelling agent. The rheologic characteristics were determined by a Brookfield viscometer..Results: The results showed that the minimum inhibitory volume of the essential oil was 0.125 ml and 95 ± 0.57% of the essential oil was successfully entrapped in the liposomes.The main constituents of the essential oil detected by GC-MS were; phenol, 1, 8 cineole,limonene, alcohol, pinene and terpinen. Results of particle size determination showed awide range from 40.5 to 298 nm for the different formulations. No significant thixotropywas observed in the rheogram of the formulated liposomal gel..Conclusion: Liposomal gel formulation of the essential oil may lead to improved antifungal activity.
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