Impact of Drying Methods on Content and Quality of Essential Oil From Leaves of Artemisia Nilagirica (Clarke) Pamp. (original) (raw)
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World Journal of Pharmaceutical Research, 4(9): 1663-1679, 2015
Essential oil composition of leaves of Artemisia nilagirica (Clarke) Pamp. grown in Doon valley on the food hill of the western Himalaya in the state of Uttarakhand (India) were analyzed. Altogether 29 constituents were identified on the basis of GC-FID analysis of essential oil. The major constituents identified were -pinene (22.29%), 1,8-cineole (8.16 %), p-cymene (8.08%), -caryophyllene (7.71%), n-hexadecane (7.39%), artemisia ketone (5.59%), (+)- camphor (5.23%), -terpineol (4.65%), β-eudesmol (4.35%), artemisia alcohol (3.78%), germacrene D (3.07), α-thujone (2.56%), caryophyllene oxide (2.54%), and tetratriacontane (2.37%). Physicochemical values of leaves including moisture content, total ash, acid insoluble ash, water soluble ash and sulphated ash were determined and found well within permissible limits. Phytochemical screening of various extracts of leaves indicated the presence of volatile oil in hexane and benzene extracts, alkaloids, steroids and terpenoids in all extracts, tannins in diethyl ether, methanol and aqueous methanol extracts, flavonoids in chloroform, diethyl ether, methanol and aqueous methanol extracts, carbohydrate, protein, amino acids and saponins in methanol and aqueous methanol extracts with glycosides particularly in methanol and aqueous methanol extract. The leaf essential oil showed marked total phenolic content and antioxidant activity with DPPH radical scavenging assay.
Tarım Bilimleri Dergisi, 2014
Chemical composition of the essential oils obtained by hydro-distillation from Artemisia annua L. (Asteraceae) harvested before flowering (BF), 50% of flowering (50%F), full flowering (FF), and after flowering (AF) stages were determined using GC and GC/MS analysis. The essential oil contents were 0.8%, 0.96%, 1.22% and 1.38% in BF, 50% F, FF and AF, respectively. In total, 20 compounds were identified, with artemisia ketone (28.30%-37.15%), camphor (18.00%-23.30%), and 1,8-cineole (9.00%-10.39%) as main components. The highest amounts of the three main components were recorded in the essential oils of the plants harvested in the FF stage. Also, the free radicals scavenging activity of the essential oils, tested by using DPPH method, were found to be in order of FF>50% F>AF>BF.
2018
The present work was conducted to investigate the yield, chemical composition, kinetic study, antioxidant and physicochemical properties of essential oil isolated from the aerial parts of Artemisia judaica harvested from Jazan region of Saudi Arabia. The hydro-distilled essential oil yield was found to be 1.08%. GC-MS analysis confirmed 21 chemical components, representing 98% of the total oil composition. As far as GC-MS volatiles profiling is concerned, (+)-davanone (1) was detected to be the principal component (34.32%) followed by camphor (21.61%). A considerable amount (7.7%) of a blue color imparting compound, chamazulene , was also detected. FT-IR spectrum of the oil also and validated the chemical components identified. Extraction process of A. judaica essential oil was further elucidated through kinetics study, which showed that antioxidant activity was affected in time and concentration dependent manner following second order kinetics. Further, physicochemical properties s...
Journal of Applied Pharmaceutical Science, 2016
This study was conceived to investigate the composition of four essential oils (EOs) extracted by hydrodistillation from four parts (leaves, stems, leaves/stems, roots) of Artemisia herba-alba growing wild in the Center of Tunisia. For this, Artemisia herba-alba aerial and roots parts were shade dried with ventilation at room temperature. Then, plant different parts were cut into small pieces and subjected to hydrodistillation using a Clevenger-type apparatus. The gas chromatography (GC) analyses were accomplished with a HP-5890 Series II instrument. The main results showed a total of 152 compounds detected and identified by GC and GC-MS and accounting for 91.3-99.7% of the whole oil. The four oils were characterized by the predominance of monoterpene derivatives (68.2-99.5%) and the major volatile constituent was α-thujone (18.2-45.5%). Qualitative and quantitative differences between the four essential oils have been noted for some compounds. The main compounds of leaves essential oil were α-Thujone (45.5%), β-Thujone (11.4%), trans-sabinyl acetate (10.1%), 1,8-Cineole (7.4%) and camphor (6.8%). α-Thujone (27.5%) was also the main compound in the essential oil of leaves/stems, followed by camphor (22.9%), 1,8-cineole (8.3%), β-thujone (8.2%) and camphene (5.6%). The essential oil of stems was dominated by α-Thujone (28%) followed by β-Thujone (11.4%) and chrysantenone (11%). In the essential oil of roots, α-thujone was less represented (18.2%), followed by camphor (14.6%) and curcumen-15-al (14.3%). It is important to mention that curcumen-15-al has been reported for the first time in Artemisia herba-alba oil Our results revealed avariability in the chemical composition and the yield of the EOs from Artemisia herba-alba. Moreover, curcumen-15-al is a new chemotype first found in Artemisia herba-alba from Tunisia.
The Journal of Pharmacy
In the present study, the essential oil components of the leaf, stem and roots of Artemisia dracunculus have been analyzed using a combination of capillary GC-FID and GC-MS analytical techniques. The study led to the identification of 17 components in the leaf and 13 in root essential oils accounting for 85.5% and 91.2% respectively of the total oil composition. In the stem essential oil, 24 components accounting for 94.6% of the total oil were identified. The principal components identified in the leaf essential oil were (z)-ß-ocimene (12.2%), capillene (12.6%), acenaphthene (51.7%) and elemicin (2.7%). In the stem, the major components were (z)-ß-ocimene (17.6%), capillene (34.7%) and acenaphthene (32.6%) while as in the root the major components were capillene (22.8%) and acenaphthene (66.6%). The aromatic hydrocarbon acenaphthene is reported for the first time in tarragon essential oil growing in this geographical part of the world.
Essential Oil Composition of Artemisia annua L. ‘Asha’ from the Plains of Northern India
Journal of Essential Oil Research, 2002
Chemical composition of the essential oils obtained from the aerial parts of Artemisia annua at vegetative, pre-bloom, bloom and post-bloom stages was determined using GC and GC/MS analysis. The yields of essential oil were 0.14%, 0.34%, 0.64% and 0.54% (w/w), respectively at different growth stages. A total of 67 compounds were identified. Oxygenated monoterpenes (39.0%-57.0%) constituted the main fraction of the oils followed by sesquiterpene hydrocarbons (11.8%-26.2%) and monoterpene hydrocarbons (4.2%-15.1%). The main compounds identified in all the analyzed samples were camphor (28.6%-31.7%), 1,8-cineole (2.1%-20.8%), germacrene D (3.8%-12.0%), β-caryophyllene (2.8%-6.9%), trans-β-farnesene (0.7%-4.5%), α-pinene (0.5%-2.4%), p-cymene (0.8%-2.3%) and terpinen-4-ol, (0.9%-2.1%). The results indicated considerable quantitative variations in both oil yield and chemical composition at different growth stages and artemisia ketone and artemisia alcohol were found to be absent in the oils.
2017
The essential oils obtained by hydrodistillation from the aerial parts of two endemic species of Artemisia (Asteraceae) collected from the Center of Tunisia (Maknessi), was analysed by GC-MS. Twelve to fourteen components were identified representing more than 80% of the total oil. The essential oil composition and yield showed a variation related to the harvest period. The yield of the essential oils of A. campestris harvested on December was 0.44 % and the one of May was 0.30 %. For A. herba-alba it was 0.5 % for air dried leaves harvested on December and 0.8 % for the one of May. It is observed that the major component in the essential oils for both species is α-thujone followed by cis-sabinol and β-thujone for the extract of December. However, the major compound is β-pinene followed by p-cymen for Artemisia campestris extract of May. The major component of A. campestris α-thujone was absent in the essential oil of the seed stage. This variability could be explained by the phenological stage of the plant. The essential oils of two Artemisia species showed significant antifungal activity against a weak antimicrobial activity.
Influence of chemical and biological treatments on volatile oil composition of Artemisia annua Linn
Industrial Crops and Products, 2009
The relative abundance of isoprenoids and other volatile components in the aerial parts of Artemisia annua Linn. (Asteraceae) after different nutritional treatments was analyzed by GC and GC/MS. Hydro-distillation of untreated (control) plants yielded 0.28 ± 0.04% essential oil on fresh weight basis. Monoterpenes were predominant in the essential oil of which cis-limonene-1,2-epoxide (22.1%), artemisia ketone (11.5%), iso-pinocamphone (11.4%), thujyl alcohol (9.9%) and camphor (8.4%) were the major components. The essential oil distilled from A. annua treated with Azospirillum (2 ml/plant) amounted to 0.30 ± 0.03% of fresh weight and consisted mainly of neral (31.1%), β-caryophyllene (25.1%), artemisia ketone (10.0%), thujyl alcohol (9.4%), trans-bergamotene (8.5%) and spathulenol (4.8%). The essential oil from plants treated with basal N, P, K and S application (in the form of urea P2O5, K2O and gypsum at a rate of 120, 50, 100 and 50 kg/ha, respectively) amounted to 0.32 ± 0.03% of fresh weight and consisted mainly of thujyl alcohol (33.3%), β-caryophyllene (15.5%), cis-undec-5-ene (14.4%), artemisia ketone (6.0%), trans-nerolidol (5.8%) and undec-4-ene (4.6%). The hydrodistillation of A. annua treated with Glomus (Mycorrhizal soil 50 g/plant) yielded 0.50 ± 0.02% essential oil on fresh weight basis. The sesquiterpenes were predominant in this essential oil and consisted of β-caryophyllene (51.2%), trans-bergamotene (15.4%), α-gurjunene (14.3%), germacrene D (5.1%) and ledol (4.5%) as major components. The only monoterpenes in the essential oil were neral, nerol and pulegone (each less than 1%). These findings suggest that A. annua treated with Glomus lacks glandular trichomes—the primary sites of synthesis of monoterpenes.
Journal of Umm Al-Qura University for Applied Sciences
Artemisia pallens, an aromatic and medicinal plant occasionally referred to as Davana is a member of the Asteraceae family. Understanding the physiochemical and therapeutic properties of Davana essential oil (DEO) is the major aim of this study. Essential oil from plant material was extracted using the hydro-distillation method. Examination of the phytochemical components and several plant constituents from the whole oil were detected using GC–MS analysis and some components were Isobutyl propionate, 4,5-Dimethyl-Thiazole, Ligustrazin, Endo-2-Norborneol, Tetradecanoic acid, and Octadecanoic acid. The thermal stability of the oil was tested using thermoanalytical studies such as TG–DTA and DSC. Moreover, to comprehend the biological potential of the oil antimicrobial, antituberculosis, antimalarial, antioxidant, anticancer, and antibiofilm activities were investigated essential oil was tested for antimicrobial activity against 10 bacterial and 7 fungal strains. The antimalarial poten...