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:: Volume 1, Issue 69 (11-2018) ::
JMP 2018, 1(69): 175-184 Back to browse issues page
Comparative Evaluation of the Essential Oils Derived from Aromatic Waters of Three Thyme Species Cultivated in Semnan
M Ghiaci Yekta 1, F Khalighi-Sigaroodi * 1, Kh Didehban 2, F Bahadori 3
1- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
2- Department of Chemistry, Payame Noor University, Tehran, Iran
3- Research Division of Natural Resources Department, Semnan Agricultural and Natural Resources Research and Education Center, AREEO, Semnan, Iran
Abstract:   (41 Views)
Background: The genus Thymus is a perennial and aromatic plant and belongs to Lamiaceae family. The essential oils of these plants are used for the treatment of mouth and throat mucosal inflammation, catarrh and respiratory disorders and as antioxidant and antiseptic.
Objective: The purpose of this study was to compare chemical composition of the essential oils derived from aromatic waters of three thyme species cultivated in Semnan and to investigate the antioxidant properties of aromatic waters and the essential oils. These three species are used in manufacturing of thyme aromatic water in Iranian market.
Methods: In this study, aerial parts of three cultivated species, Thymus vulgaris, Thymus daenensis and Thymus kotschyanus were collected from Semnan natural resources research field in Shahmirzad. At first, the aromatic waters of dried plants were extracted by water distillation method, and then the essential oils of the aromatic waters were isolated using pentane and analyzed by GC/MS. Then antioxidant activities of thyme waters and the derived essential oils were evaluated by DPPH radical scavenging method.
Results: Thymol was the major component of the derived essential oils of two species Thymus vulgaris (38.36 %) and Thymus daenensis (56.82 %), while α-terpinyl acetate (31.06 %) was the main ingredient of the essential oil of Thymus kotschyanus. The most antioxidant activity was observed in the essential oil and aromatic water of Thymus daenensis.
Conclusion: Chemical composition of the essential oils derived from aromatic water of three thyme species used in manufacturing of thyme water in Iranian market were completely different and it can affect the effectiveness of aromatic thyme water.
Keywords: Thymus vulgaris, Thymus daenensis, Thymus kotschyanus, Essential oil, Aromatic water, GC/MS, Antioxidant
Full-Text [PDF 362 kb]   (18 Downloads)    
Type of Study: Research | Subject: Chemistry
Received: 2018/11/24 | Accepted: 2018/11/24 | Published: 2018/11/24
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Ghiaci Yekta M, Khalighi-Sigaroodi F, Didehban K, Bahadori F. Comparative Evaluation of the Essential Oils Derived from Aromatic Waters of Three Thyme Species Cultivated in Semnan. JMP. 2018; 1 (69) :175-184
URL: http://jmp.ir/article-1-2372-en.html


Volume 1, Issue 69 (11-2018) Back to browse issues page
فصلنامه علمی پژوهشی گیاهان دارویی Journal of Medicinal Plants
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