, 2000[28] Hili et al ,1997[29] and Nzeako et al , 2006[30] thyme

, 2000[28] Hili et al.,1997[29] and Nzeako et al., 2006[30] thyme and clove oil possessed antimicrobial activity against S. aureus, E. coli and C. albicans at various concentration of the extracts. In our study, antimicrobial susceptibility in order of sequence for thyme oil was E. coli with MIC: 2 ��l/ml, selleckchem MBC: 8 ��l/ml, C. albicans with MIC, MFC: 16 ��l/ml, E. faecalis with MIC, MBC: 32 ��l/ml and S. aureus with MIC, MBC: 32 ��l/ml respectively. Essential oil of peppermint (Mentha piperita-Lamiaceae/Labiatae) is cultivated on a wide scale in Europe, USA and Japan. It is extensively used in toiletry, food and pharmaceutical industries. A variety of products ranging from toothpastes, mouthwashes and digestive tablets to sweets, ice cream and liquors are flavored with peppermint.

Essential oil of peppermint is obtained from the leaves by steam distillation method. Its principal constituents include monoterpinic alcohols mainly menthol (38-48%), ketones mainly menthones (20-30%), some monoterpens and oxides. It is a good antiseptic, antibacterial and antiviral. It has light, clean, refreshing aroma and is a good insect repellant. It has stimulating and strengthening effect; in treatment of shock, helpful for neuralgia and relief of general debility, headaches and migraines. It has antiseptic and anti-spasmodic effect; in reducing mucus and relieving coughs, sinusitis, throat infections, colds, flu, asthma and bronchitis. It is also used in inhalations, baths or applications. It has got cooling and cleansing effect; soothes itchy skin, relieves inflammation.

It has soothing and anti-spasmodic effect; relieves acidity, heartburn, diarrhea, indigestion and flatulence, also effective for travel sickness and nausea. It has cooling effect in case of varicose veins and hemorrhoids.[20] Peppermint oil makes the mouth feel fresh and of course, makes the formula taste good. Peppermint oil can also increase salivation, which is useful because dry mouth may result in halitosis.[31] In our study, antimicrobial effect was achieved at the concentration of 0.5 ��l/ml for C. albicans and at the concentration of 32 ��l/ml for E. coli, S. aureus, E. faecalis (32 ��l/ml). The clove plant grows in warm climates and is cultivated commercially in Tanzania, Sumatra, the Maluku (Molucca) Islands and South America. The tall evergreen plant grows up to 20 m and has leathery leaves.

The clove spice is the dried flower bud of Eugenia caryophyllata species. Essential oils are obtained Cilengitide from the buds, stems and leaves by steam distillation. The buds or cloves are strongly aromatic. Clove buds yield approximately 15-20% of a volatile oil that is responsible for the characteristic smell and flavor. The bud also contains a tannin complex, a gum and resin and a number of glucosides of sterols. The principal constituent of distilled clove bud oil (60-90%) is eugenol (4-allyl-2-methoxyphenol).

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