Chemical Constituents and Antimicrobial Activity of the Leaf and Rhizome Oils of Alpinia pahangensisRidl., an Endemic Wild Ginger from Peninsular Malaysia

Abstract

The essential oils from the leaves and rhizomes of Alpinia pahangensis Ridl., collected from Pahang, Peninsular Malaysia, were obtained by hydrodistillation, and their chemical compositions were determined by GC and GC/MS analyses. The major components of the rhizome oil were γ-selinene (11.60%), β-pinene (10.87%), (E,E)-farnesyl acetate (8.65%), and α-terpineol (6.38%), while those of the leaf oil were β-pinene (39.61%), α-pinene (7.55%), and limonene (4.89%). The investigation of the antimicrobial activity of the essential oils using the broth microdilution technique revealed that the rhizome oil of A. pahangensis inhibited five Staphylococcus aureus strains with minimum inhibitory concentration (MIC) values between 0.08 and 0.31 μg/μl, and four selected fungi with MIC values between 1.25 and 2.50 μg/μl.

Essential Oil Constituents of Alpinia scabra and Alpinia murdochii, Two Wild Highland Species from Peninsular Malaysia and Their Anti-Microbial Activity

“…From our previous study on essential oil of Alpinia pahangensis which also contain γ-selinene and α-terpineol as the major components, showed that the rhizome oil exhibited lower MIC values and the results were comparable to the activity of oxacillin when tested against the same five strains of Staphylococcus aureus used in this study (Awang et al 2011). The major compound, α-terpineol, from rhizomes of A. scabra and A. murdochii in this study has been reported by Li et al (2014) to exhibit strong antibacterial activity against Salmonella enteritidis and Staphylococcus aureus with MIC values of 1.56 and 3.13 µg/mL, respectively.…”

Evaluation of the chemical composition of essential oils with respect to the maturity of flower heads of Arnica montana L. and Arnica chamissonis Less. cultivated for industry

“…For instance, oil derived from the overground parts of Mantisalca duriaei Briq. Et Cavill with farnesyl acetate as a dominant compound is characterised by interesting antibacterial activity (Boussaada et al, 2009), likewise the oil from Alpinia pahangensis Ridl rhizome, with farnesyl acetate as a major component as well (Awang et al, 2011). It is necessary underline that in the case the two Arnica spp.…”

Antimicrobial Activity of Some Essential Oils—Present Status and Future Perspectives

“…S. aureus is a common Gram-positive bacterium that can cause pathogenic conditions including food-borne diseases and infections ranging from minor localized skin disturbances to life-threatening deep tissue and systemic illness. Different components of EOs obtained from Alpinia pahangensis , Origanum vulgare , Origanum dictamnus , Mentha piperita , Lavandula hybrida , Zataria multiflora and Hofmeisteria schaffneri have been tested against S. aureus , and all were found to possess potential inhibitory activity [ 30 , 31 ]. Furthermore, combination of essential oil with an antimicrobial agent produces a synergistic effect against multidrug-resistant S. aureus , and in many cases, a substantial decrease in the MIC has been observed [ 32 ].…”