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Essential
oil of Pinus roxburghaii stems was analyzed by GC MS and their
antibacterial activity was studied. Seventeen components out of
fifty-two were identified in the oil. Major component in essential oil
was α- pinene (41.9%) followed by 3-carene (16.3%), caryophyllene
(12.3%), p-cymene (1.9%), Terpinenol (1.8%), Limonene (1.7%), Borneol
acetate(1.1%), Caryophyllene oxide (1.0%),camphene (0.9%),Tepinyl
acetate (0.8%), β-Phallenderene (0.7%), farnesene (0.6%),o-cymene
(0.4%),
Butanoic acid,
3-methyl-,
2-phenylethyl
ester
(0.3%),1-terpinen-4-ol (0.2%), Farnesyle acetate (0.2%) and γ-terpinene
(0.2%). Antibacterial activity of stem essential oil was observed
against Staphylococcus aureus and Bacillus subtilis while
no activity was observed against E. coli and Enterobacter
aerogenes. Similarly, antifungal activity of Pinus roxburghaii
essential oil was also found to be active against Aspergillus terrus, Aspergillus flavus, Aspergillus
candidus, Aspergillus vessicolor, Aspergillus niger
and
Trichoderma viride.
Key words:
Pinus roxburgahii, antibacterial activity, antifungal activity,
α-pinene, caryophyllene. |
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