Effect of extraction methods on kinetic, chemical composition and antibacterial activities of Tunisian Thymus vulgaris. L. essential oil
| Autor: | Asma Farhat, Rafik Bachoual, Zina Nasfi, Walid Elfalleh, Mehrez Romdhane, Hasnia Benmoussa |
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| Rok vydání: | 2016 |
| Předmět: |
Chromatography
biology Process Chemistry and Technology General Chemical Engineering 010401 analytical chemistry Thymus vulgaris Extraction (chemistry) Filtration and Separation 04 agricultural and veterinary sciences General Chemistry biology.organism_classification 040401 food science 01 natural sciences 0104 chemical sciences law.invention Steam distillation chemistry.chemical_compound 0404 agricultural biotechnology chemistry law Yield (chemistry) Carvacrol Antibacterial activity Chemical composition Essential oil |
| Zdroj: | Separation Science and Technology. 51:2145-2152 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496395.2016.1201507 |
| Popis: | The present study aims to compare two innovative extraction techniques: microwave-assisted hydrodistillation (MAHD) and solvent-free microwave extraction (SFME) through traditional extraction techniques: hydrodistillation (HD) and steam distillation (SD) for their efficiency in the extraction of the volatile compounds from Tunisian Thymus vulgaris leaves; the kinetic, yield, composition and antibacterial activities of the essential oil were assessed in vitro. Results show that the essential oils extracted by microwaves were quantitatively (yield) similar to those obtained through the conventional methods, but qualitatively, essential oils analysed by gas chromatography–mass spectrometry (GC–MS) presented 17, 11, 11 and 8 compounds obtained through SFME, MAHD, SD and HD, respectively, mostly consisting of carvacrol (89.24–41.17%), followed by γ-terpinene (11.37–1.37%) and para-cymene (27.95–2.05%). The essential oils were screened for antibacterial activity against 5 microorganisms. All essential o... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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