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Pak. J. Bot., 46(4): 1463-1468, 2014. |
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Updated: 11-08-14 | ||||
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ANTIMICROBIAL POTENTIAL OF LEAF AND FRUIT EXTRACTS AND OILS OF WILD AND CULTIVATED EDIBLE OLIVE
ALTAF HUSSAIN1*, IQBAL AHMED QARSHI2, RABIA LIAQAT3, SAEED AKHTAR3, IRUM AZIZ4, IKRAM ULLAH5,6 AND ZABTA KHAN SHINWARI6
Abstracts: Olive tree is the first botanical noted in the Bible. Leaves and fruits of olive are rich sources of Phenols, triterpenes, and flavanoids. Oleuropein obtained from the leaves extract is believed to be important therapeutic compound. Olive leaf and oils are used for the treatment of different diseases as folklore medicines by different ethnic groups in different countries of the world. The present study aims to investigate the potential antimicrobial activities of wild (Olea ferruginea) and edible (Olea europaea) olive leaf crude extracts, crude oils from ripe and unripe fruits and extra virgin oils against the selected gram positive and gram negative bacterial strains. The results show that olive leaf and oil have potential antibacterial activities against some of the gram positive and gram negative bacterial strains. However, certain strains were resistant to the extracts. It was also found that the activities were higher for the gram negative strains as compared to gram positive strains. The methanolic and ethanolic extracts were found to be more efficient in extraction than the other solvents used. Leaf extracts were more effective than the oil extracted from ripe and unripe fruits. There was no significant difference in the activities of extra virgin oils and crude leaf extracts. From the results it is concluded that the leaf extract is a cheap and effective antibacterial agent that can be used as alternative to purified oil.
1Qarshi University, Lahore 2Qarshi Industries (Pvt.) Ltd. Lahore 3Qarshi Research International IAQ Lab, Qarshi Industries (Pvt.) Ltd. Hattar, Haripur, Pakistan 4Combined Military Hospital (CMH), Tariq-Abad Road, Lalkurti Rawalpindi, Pakistan 5Qarshi Herb Research Center, Qarshi Industries (Pvt.) Ltd. Hattar, Haripur, Pakistan 6Department of Biotechnology, Quaid-i-Azam University Islamabad, Pakistan *Corresponding author e-mail: altaf.hussain@qarshi.com |
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