Chemical composition and antibacterial activities of essential oil of Thymus capitatus from Jordan

• Main Authors: Qaralleh, Haitham, Khleifat, Khalid M, Tarawneh, Khaled A, Abboud, Muayad M, Syed Osman Idid, Syed Zahir Idid, Darnis, Deny Susanti, Althunibat, Osama Yousef
• Format: Conference or Workshop Item
• Language: English; English
• Published: 2009
• Subjects: Q Science (General)
• Online Access: http://irep.iium.edu.my/12127/1/MSPPcover.pdf; http://irep.iium.edu.my/12127/2/MSPP.pdf; http://irep.iium.edu.my/12127/; http://www.mspp.net.my/23rd%20MSPP%20SCIENTIFIC%20MEETING%202009/MSPP%2023/poster%20presentation/poster%2052.html
• Institution: Universiti Islam Antarabangsa Malaysia

The essential oils from the dried leaves of Thymus capitatus was isolated by steam distillation. The collected oil were analyzed by GC-MS and also evaluated for in vitro antibacterial activity. Twenty-two compounds, constituting about 95.4% of the total oil, were identified. The main constituents were thymol (39.2%), p-cymene (19.4%), carvacrol (11.8%) and g-terpinene (7.4%). The antibacterial activity of the oil was estimated using agar disc diffusion and broth microdilution methods against four bacteria. The essential oils wer found to show a broad spectrum of antibacterial activity against all the tested bacteria strains. Pseudomonas aeruginosa was the most sensitive bacteria. The essential oil were equally active against Gram-negative and ram-positive bacteria