Parthenolide and essential oil content in the aerial parts of Tanacetum larvatum

Essential oils (EOs) are volatile, natural, complex compounds characterized by a strong odour and are formed by aromatic plants as secondary metabolites. The essential oil of Lavendula officinalis was extracted using hydrodistillation process. Hydro-Distillation is potentially a very useful method to extract essential oil from various plants and from their different parts. The principle of extraction is based on the isotropic distillation. The yield is dependent on various parameters like weight of raw material, volume of water, size of raw material and nature of raw material. Samples from aerial parts of three Lavendula ecotypes were analyzed for essential oil content to find out as to which ecotype excels in oil content and which ecotype gave the minimum essential oil output. Air dried leafy stalks and stems of L. officinalis were taken and submitted to Hydro distillation for 4 hrs using Clevenger type apparatus. Briefly, the samples were immersed in water and heated to boiling, after which the essential oil was evaporated together with water vapour and finally collected in a condenser. The distillates (EOs) were isolated and dried over anhydrous sodium sulphate. The oils were stored in the sealed vials at 2°C for further studies. Each extraction was performed at least three times. The oil content was determined on an oil volume to tissue weight basis. Estimated oil content was lowest in Srinagar ecotype to a highest in Pulwama ecotype. Pulwama ecotype was followed by Budgam ecotype. This could be due to the variation in altitude and location.

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Comparative Study of Essential Oil Content and Constituents, Extracted from Aerial Parts of Iranian Wild Achillea

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2018.1431154 ◽

2018 ◽

Vol 21 (1) ◽

pp. 246-252

Author(s):

Amin Salehi ◽

Parvin Rostampour ◽

Majid Gholamhoseini

Keyword(s):

Essential Oil ◽

Comparative Study ◽

Oil Content ◽

Aerial Parts

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ESSENTIAL OIL AND VOLATILE COMPONENTS DRACOCEPHALUM DIVERSIFOLIUM

chemistry of plant raw material ◽

10.14258/jcprm.2020026064 ◽

2020 ◽

pp. 87-92

Author(s):

Shohista Olimovna Meliyeva ◽

Khairulla Mamadievich Bobakulov ◽

Nilufar Sagdullaevna Abdullayeva ◽

Komila Alibekovna Eshbakova ◽

Amindjan Karimov

Keyword(s):

Comparative Analysis ◽

Chemical Composition ◽

Essential Oil ◽

Aerial Part ◽

Oil Content ◽

Component Composition ◽

Volatile Components ◽

Aerial Parts ◽

The Family ◽

First Time

Plants of the genus Dracocephalum belong to the subfamily Nepetoideae of the family Lamiaceae of the order Lamiales and include about 70 species worldwide. In Uzbekistan grows 16 species of this genus. The purpose of this study was to study the chemical composition of the essential oil and gasoline extract of Dracocephalum diversifolium. To obtain the essential oil and gasoline extract were used the aerial parts of the plant (stems, flowers and leaves). Essential oil was isolated by hydrodistillation method. The gasoline extract was obtained by treating the air-dried aerial part of the plant with extraction gasoline. The composition of the isolated essential oil and gasoline extract was studied by GC-MS. It was revealed that the predominant components of essential oil content of D. diversifolium was sabinene (20.7%), β-pinene (10.6%), DL-limonene (7.5%), trans-valerenil acetate (7.5%), m-cymene (6.2%), 1,8-cineole (5.0%), T-cadinol acetate (4.4%), δ-cadinene (3.9%), caryophyllene (2.4%). Among the volatiles of the gasoline extract of D. diversifolium was dominated 1,8-cineole (17.0%), 3,5,5,9-tetramethyl-2,4a,5,6,9,9a-hexahydro-1H-benzo[a]cycloheptene (11.2%), δ-cadinene (8.7%), myrtenyl acetate (4.3%), β-pinene (3.9%), 4-terpinenyl acetate (3.2%), δ-cadinol (3.1%), δ-elemene (2.8%), eremophila-1(10),8,11-triene (2.8%), sabina ketone (2.5%), m-cymol (2.2%), 10,12-octadecadiynoic acid (2.0%). For the first time, by hydrodistillation method isolated essential oil from the aerial part of D. diversifolium, growing in Uzbekistan, in which 29 compounds were identified by GC-MS analysis. For the first time the chemical composition of the gasoline extract of the aerial part of D. diversifolium was studied by GC-MS. It was identified 28 components. A comparative analysis of the component composition of the essential oil and gasoline extract of D. diversifolium was carried out, in which established the dominant components for each sample.

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