Essential oil constituents of Alpinia scabra and Alpinia murdochii, two wild highland species from Peninsular Malaysia and their anti-microbial activity

Devi Rosmy Syamsir, and Norsita Tohar, and Halijah Ibrahim, and Nor Azah Mohamad Ali, and Mastura Mokhtar, and Yasodha Sivasothy, and Khalijah Awang, (2020) Essential oil constituents of Alpinia scabra and Alpinia murdochii, two wild highland species from Peninsular Malaysia and their anti-microbial activity. Sains Malaysiana, 49 (1). pp. 43-48. ISSN 0126-6039

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Official URL: http://www.ukm.my/jsm/malay_journals/jilid49bil1_2...

Abstract

This study investigates the chemical constituents of essential oils and their anti-microbial activity of Alpinia scabra and Alpinia murdochii, two wild Zingiberaceae species. The essential oils were obtained by hydrodistillation and the chemical components of the oils were determined by GC-FID (retention indices, RI) and GC/MS analysis. The major components of Alpinia scabra rhizome oil are γ-selinene (33.45%), α-selinene (3.64%) and α-terpineol (3.55 %) while the major components of the leaves are β-pinene (63.37%), α-pinene (6.58 %) and borneol (3.20 %). The major compounds of Alpinia murdochii rhizome oil are γ-selinene (15.51 %), (E,E)-farnesyl acetate (6.56 %), terpinen 4-ol (5.58 %) and α-terpineol (5.04 %). The monoterpenes; β-pinene (23.83 %), sabinene (23.76 %) and terpinene-4-ol (10.49 %) were the major components in the leaf oil of A. murdochii. The lowest MIC values were recorded for the rhizome essential oils of both Alpinia species against all Staphylococcus aureus strains (coded as MSSA, MRSA, Sa7, VISA24, VRSA156) with MIC values ranging from 0.04 mg/mL to 2.50 mg/mL. The rhizome oils of both species also showed a broad spectrum of anti-microbial activity as compared to the leaf oils.

Item Type:Article
Keywords:Anti-microbial agent; Hydrodistillation; Lengkuas; γ-selinene
Journal:Sains Malaysiana
ID Code:14729
Deposited By: ms aida -
Deposited On:11 Jun 2020 01:50
Last Modified:12 Jun 2020 04:45

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