PJB-2020-140
CHEMICAL COMPOSITION AND ANTIMICROBIAL ANALYSIS OF MENTHA ARVENSIS AND THYMUS LINEARIS ESSENTIAL OILS.
SAJIDA BIBI
Abstract
This study was performed to evaluate the chemical composition and antimicrobial activities of Mentha arvensis and Thymus linearis essential oils. The complexity of the essential oils is a basic challenge for determining their reliable and accurate compositional data. The rapid advances in the spectroscopic and chromatographic techniques have totally changed the picture of chemical study of essential oils. Mentha arvensis and Thymus linearis essential oils were analyzed for the first time from Miandam area district Swat of Pakistan through Gas Chromatography Mass Spectrometry (GC-MS) in this study. Essential oils were extracted from their leaves through steam distillation. A total of 26 components were identified in Mentha arvensis essential oil and 25 components in Thymus linearis essential oil through GC-MS. Major components identified in Mentha arvensis essential oil were Carvone (23.53%), p-cymen-2-ol (20.35%) and caryophyllene oxide (18.81%), whereas in Thymus linearis essential oil major components were Thymol (40%), o-cymene (14.95%) and beta-Bisbolene (12.54%). The antibacterial activities of these essential oils were performed on Escherichia coli, Staphylococcus aureus, Klesiella pneumonia, Bacillus subtilis and Pseudomonas aeruginosa through disc diffusion method. The results showed that as both the essential oils showed effective bactericidal activity against all the bacterial strains therefore in future it may be used as natural antiseptic and will play important roles in food and pharmaceutical industry.
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