التفاصيل البيبلوغرافية
| العنوان: |
Superheated Water Extraction of Essential Oils of Origanum micranthum. |
| المؤلفون: |
Fahrettin Gogus, Mustafa Z. Ozel, Alastair C. Lewis |
| المصدر: |
Journal of Chromatographic Science; Feb2005, Vol. 43 Issue 2, p87-91, 5p |
| مستخلص: |
Superheated water extraction is used to extract essential oil of leaves of Origanum micranthum. The effect of different temperatures on the essential oil profile and rate of extraction as a function of time is investigated. The components of essential oil of Origanum micranthum are removed from the aqueous extract by C18 solid-phase extraction. The identification of components is carried out using comprehensive gas chromatography–time of flight-mass spectrometry. The number of extracted components is almost the same; however, the concentrations change with changing temperature. The highest yield (0.64%) is found at a temperature of 150°C, 2 mL/min and 60 bar for 30 min. The increasing temperature from 100°C to 175°C increased the rate of extraction of six selected components of essential oil of Origanum micranthum. cis-Sabinenehydrate exhibits the fastest rate of extraction at all temperatures studied. Some degradation products are observed at a temperature of 175°C. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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