Anti-psoriatic effect of Lavandula angustifolia essential oil and its major components linalool and linalyl acetate

2020 ◽  
Vol 261 ◽  
pp. 113127
Author(s):  
Vineet Kumar Rai ◽  
Priyam Sinha ◽  
Kuldeep Singh Yadav ◽  
Aparna Shukla ◽  
Archana Saxena ◽  
...  
Keyword(s):  
Essential Oil ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia

scholarly journals Herbicidal potential of lavender (Lavandula angustifolia Mill.) essential oil components on bristly foxtail (Setaria verticillata (L.) P. Beauv.): Comparison with carvacrol, carvone, thymol and eugenol

2020 ◽  
Vol 72 (2) ◽  
pp. 223-231
Author(s):  
Katerina Koiou ◽  
Ioannis Vasilakoglou ◽  
Kico Dhima
Keyword(s):  
Essential Oil ◽  
Synergistic Effect ◽  
Essential Oils ◽  
Weed Control ◽  
Root Length ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
Natural Herbicides ◽  
Setaria Verticillata ◽  
Oil Components

Essential oils are a plentiful source of plant compounds for potential use in the development of natural herbicides. With this in mind, the phytotoxicity of ten major essential oil components of lavender (Lavandula angustifolia Mill.) on the weed species bristly foxtail (Setaria verticillata (L.) P. Beauv.) was determined using a perlite-based Petri-dish bioassay. Their phytotoxicity was also compared with that of well-known phytotoxic essential oil components (carvacrol, thymol, carvone and eugenol) of oregano (Origanum vulgare L.) and clove (Syzygium aromaticum (L.) Merr. & L.M. Perry) essential oils. Potential synergistic or antagonistic effects between carvacrol or eugenol with other components of lavender essential oil were investigated. Regarding the most phytotoxic components, terpinen-4-ol at 80 nL/cm3 completely inhibited the germination and root length of bristly foxtail, displaying similar phytotoxicity to carvone and thymol. Like carvacrol, lavandulol and linalyl acetate caused total (100%) germination and root length reduction of bristly foxtail at 160 nL/cm3, while the same effect was achieved by lavandulyl acetate at 320 nL/cm3. A synergistic effect was also observed when carvacrol or eugenol were combined with ocimene, 3-octanone, ?-terpineol or terpinen-4-ol. Focusing on the development of alternative weed control strategies, lavender essential oils containing high concentrations of terpinen-4-ol, lavandulol or linalyl acetate could be useful for the production of natural herbicides. These essential oil components combined with selected oregano or clove essential oil components, increase phytotoxicity and weed control due to the synergistic effect observed when in mixture.

scholarly journals Aroma Characteristics of Lavender Extract and Essential Oil from Lavandula angustifolia Mill.

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5541 ◽  
Author(s):  
Xiangyang Guo ◽  
Pu Wang
Keyword(s):  
Essential Oil ◽  
Steam Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Optimal Conditions ◽  
Pca Analysis ◽  
Lower Intensity ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
Industrial Preparation ◽  
Aroma Characteristics

Lavender and its products have excellent flavor properties. However, most studies focus on the aroma profiles of lavender essential oil (LEO). The volatiles in lavender extracts (LEs), either in volatile compositions or their odor characteristics, have rarely been reported. In this study, the odor characteristics of LEs and LEO were comprehensively investigated by gas chromatography-mass spectrometry (GC-MS), coupled with sensory evaluation and principal chemical analysis (PCA). In addition, the extraction conditions of lavender extracts from inflorescences of Lavandula angustifolia Mill. were optimized. Under the optimal conditions of extraction, twice with 95% edible ethanol as the solvent, the LEs tended to contain the higher intensity of characteristic floral, herbal and clove-like odors as well as higher scores of overall assessment and higher amounts of linalool, linalool oxides I and II, linalyl acetate, lavandulyl acetate and total volatiles than LEO. PCA analysis showed that there were significant differences on the odor characteristics between LEO and LEs. The LEO, which was produced by steam distillation with a yield of 2.21%, had the lower intensity of floral, clove-like, medicine-like, pine-like and hay notes, a lower score of overall assessment and lower levels of linalool oxides I and II, linalyl acetate, lavandulyl acetate and total volatiles compared with LEs, whereas the relative contents of linalool and camphor in LEO were significantly higher than that in LEs. Furthermore, the earthy, green and watery odors were only found in LEO. Concerning the odor characteristics and volatile compositions, the LEs had better odor properties than LEO. These results provided a theoretical basis for the industrial preparation of lavender-related products.

The impact of soil herbicides on the yield and quality of lavender (Lavandula angustifolia Mill.) essential oil

2021 ◽  
Vol 13 (31) ◽  
pp. 37-43
Author(s):  
Desislava Angelova ◽  
◽  
Ana Dobreva ◽  
Ganka Baeva ◽  
◽  
...  
Keyword(s):  
Essential Oil ◽  
Untreated Control ◽  
Low Doses ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
Yield And Quality ◽  
The Impact

During the period 2014 – 2015 the herbicidal effect and the selectivity of isoxaflutole (Merlin 750 WG), oxadiargyl (Raft 400 SC), imazamox (Pulsar 40) and flumioxazine (Pledge 50 VP) were studied on lavender fields, Hemus and Jubilejna varieties. The present work focuses on the influence of low doses of the applied preparations on the yield and composition of the essential oil compared with untreated control. The results of two-year studies show that the treated variants have a higher yield on average of 0.7-1.6 kg / dka. The odoriferous ingredients range in the limits: linalyl acetate (20.0 - 38.6 %); linalool (20.6 - 46.2 %); lavandulyl acetate (1.9 - 5.9 %); 1,8 cineole (0,4 - 4,9 %) and camphor (0,2 - 0,6 %). Applying oxidiarigil results in greater changes in the composition of the Jubilejna variety, whereas the Hemus variety has the most influence by isoxaflutole.

Aromatherapy: Evidence for Sedative Effects of the Essential Oil of Lavender after Inhalation

1991 ◽  
Vol 46 (11-12) ◽  
pp. 1067-1072 ◽  
Author(s):  
Gerhard Buchbauer ◽  
Leopold Jirovetz ◽  
Walter Jäger
Keyword(s):  
Essential Oil ◽  
Exposure Time ◽  
Folk Medicine ◽  
Laboratory Animals ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
Experimental Conditions ◽  
Falling Asleep ◽  
Sedative Effects ◽  
Ancient Times

The sedative properties of the essential oil of Lavender (Lavandula angustifolia Miller) and of its main constituents - linalool and linalyl acetate - were investigated in mice followed up in a series of experimental procedures. The significant decrease in the motility of female and male laboratory animals under standardized experimental conditions is found to be closely dependent on the exposure time to the drugs. Nevertheless after an injection of caffeine into mice a hyperactivity was observed which was reduced to nearly a normal motility only by inhalation of these fragrance drugs. In particular the correlation of the motility of the animals to linalool in serum is experimentally proven, thus furnishing evidence of the aromatherapeutical use of herbal pillows employed in folk medicine since ancient times in order to facilitate falling asleep or to minimize stressful situations of man.

scholarly journals Essential oil composition of Lavandula angustifolia Mill. cultivated in the mid hills of Uttarakhand, India

2010 ◽  
Vol 75 (3) ◽  
pp. 343-348 ◽  
Author(s):  
Ram Verma ◽  
Laiq Rahman ◽  
Chandan Chanotiya ◽  
Rajesh Verma ◽  
Amit Chauhan ◽  
...  
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Capillary Gc ◽  
Fresh Weight ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
The Usa

The essential oil content in the inflorescence of lavender (Lavandula angustifolia Mill.) cultivated in the mid hills of Uttarakhand was found to be 2.8 % based on the fresh weight. The oil was analysed by capillary GC and GC- MS. Thirty seven constituents, representing 97.81 % of the oil were identified. The major components of the oil were linalyl acetate (47.56 %), linalool (28.06 %), lavandulyl acetate (4.34 %) and ?-terpineol (3.75 %). The quality of lavender oil produced in India was found to be comparable to that produced in Hungary, France, China, Bulgaria, Russia and the USA.

scholarly journals Composition of Lavandula angustifolia L. cultivated in Transylvania, Romania

2019 ◽  
Vol 47 (3) ◽  
Author(s):  
Camelia OROIAN ◽  
Antonia ODAGIU ◽  
Csaba Pal RACZ ◽  
Ioan OROIAN ◽  
Iulia C. MUREȘAN ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Point Of View ◽  
Quantitative Composition ◽  
Market Demand ◽  
Oil Composition ◽  
Linalyl Acetate ◽  
Dispersion Parameters ◽  
Lavandula Angustifolia ◽  
And Cluster Analysis

An increasing market demand concerning lavender essential oil is reported. Identification and characterization of the main compounds of this oil is needed, in order to identify chemotypes. This information is useful for further uses of the produced oil. Essential oil extracted from two Lavandula angustifolia L. varieties, cultivated in different areas of Transylvania, Romania, was analysed from the point of view of qualitative and quantitative composition, using gas-chromatography. Basic statistics was used for calculation of essential oil compounds means and dispersion parameters, while the profile of the essential oil composition was emphasized using Box-Plot diagrams and cluster analysis. Nine compounds, in different amounts were quantified, and two chemotypes, corresponding to ‘Mailette’ and ‘Vera’ varieties were established (linalool, and linalyl acetate, respectively). Differences in essential oil composition are recorded in ‘Vera’ variety corresponding to ‘Vera’ linalyl acetate chemotype, function of specific condition of lavender cultivation area.

scholarly journals Variations in the Chemical Composition of the Essential Oil of Lavandula angustifolia Mill., Moldoveanca 4 Romanian Variety

2020 ◽  
Vol 71 (7) ◽  
pp. 307-315
Author(s):  
Mihaela Bogdan ◽  
Simona Bungau ◽  
Delia Mirela Tit ◽  
Lucian Copolovici ◽  
Tapan Behl ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Organic Compounds ◽  
Chemical Profile ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia

In this research, the variations in the chemical composition of the Lavandula angustifolia Mill. essential oil, the Romanian variety Moldoveanca 4, obtained from the same culture, in the same harvesting and extraction conditions, during the years 2016-2018, representing the years 2-4 of culture. Lavandula angustifolia Mill. flowers were supplied from an ecological-crops from N-E Romania and the essential oils were obtained by hydro distillation of freshly harvested flowers. To determine the chemical composition, the essential oil was semi-quantitatively analysed by using gas chromatography coupled with mass spectrometry (GC-MS). In all the samples, 30 organic compounds were identified, linalool and linalyl acetate being in similar concentrations (23.51-27.39% for linalool and 26.60-40.66% for linalyl acetate). Changes in chemical composition were observed in 2017 and 2018. Also, in 2017 was determined an increase in the quantity of linalyl acetate (from 26.60 to 40.66 %), and a slight decrease in linalool content; in 2018, the concentration in linalyl acetate remained approximately the same as in 2017 (38.03 versus 40.66 %) and there was an increase in linalool compared to the previous years (27.39 %, compared to 23.51 % in 2017 and 26.22 % in 2016). The chemical composition of the essential oils obtained from flowers of Lavandula angustifolia L., Moldoveanca 4 variety, showed substantial changes of the chemical profile describing the compounds during the analysed three years, as was determined by GC-MS analyses.

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