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Title: Chemical composition and biological activity of essential oils from wild growing aromatic plant species of Skimmia laureola and Juniperus macropoda from Western Himalaya

Author
item STAPPEN, IRIS - University Of Vienna
item TABANCA, NURHAYAT - University Of Mississippi
item ALI, ABBAS - University Of Mississippi
item Wedge, David
item WANNER, JUGEN - Kurt Kitzing Co
item KAUL, VIJAY - Institute Of Himalayan Bioresource Technology
item LAL, BRIJ - Institute Of Himalayan Bioresource Technology
item JAITAK, VIKAS - Punjabi University
item GOCHEV, VELIZAR - Plovdiv University
item SCHMIDT, ERICH - University Of Vienna
item JIROVETZ, LEOPOLD - University Of Vienna

Submitted to: Natural Product Communications
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/26/2015
Publication Date: 6/3/2015
Publication URL: http://handle.nal.usda.gov/10113/62338
Citation: Stappen, I., Tabanca, N., Ali, A., Wedge, D.E., Wanner, J., Kaul, V.K., Lal, B., Jaitak, V., Gochev, V., Schmidt, E., Jirovetz, L. 2015. Chemical composition and biological activity of essential oils from wild growing aromatic plant species of Skimmia laureola and Juniperus macropoda from Western Himalaya. Natural Product Communications. 10(6):1071-1074.

Interpretive Summary: This paper documents the investigation of essential oils of two selected species from the Himalayan region and describes their antimicrobial, larvicidal, and biting deterrent activities. The odors are also characterized. The main components of Skimmia laureola oil were linalool and linalyl acetate and sabinene was the main compound in the essential oil of Juniperus macropoda. Antibacterial testing revealed highest activity of S. laureola oil against all tested bacteria, followed by J. macropoda oil. Antifungal activity was evaluated against the strawberry anthracnose causing plant pathogens Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Juniperus macropoda essential oil indicated higher antifungal activity against all three pathogens than S. laureola oil. Both essential oils showed biting deterrent activity above solvent control but low larvicidal activity.

Technical Abstract: The Himalayan region is very rich in a great variety of medicinal plants. In this investigation the essential oils of two selected species are described for their antimicrobial and larvicidal as well as biting deterrent activities. Additionally, the odors are characterized. Analyzed by simultaneous GC-MS and GC-FID, the essential oils’ chemical compositions are given. The main components of Skimmia laureola oil were linalool and linalyl acetate whereas sabinene was found as the main compound for Juniperus macropoda essential oil. Antibacterial testing by agar dilution assay revealed highest activity of S. laureola oil against all tested bacteria, followed by J. macropoda oil. Antifungal activity was evaluated against the strawberry anthracnose causing plant pathogens Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Juniperus macropoda essential oil indicated higher antifungal activity against all three pathogens than S. laureola oil. Both essential oils showed biting deterrent activity above solvent control but low larvicidal activity.