scholarly journals Seasonal Variations in the Composition of the Essential Oils of Lavandula angustifolia (Lamiacae)

2014 ◽  
Vol 9 (6) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Branislava Lakušic ◽  
Dmitar Lakušic ◽  
Mihailo Ristic ◽  
Mirjana Marčetic ◽  
Violeta Slavkovska
Keyword(s):  
Cluster Analysis ◽  
Essential Oils ◽  
Seasonal Variations ◽  
Plant Part ◽  
Lavandula Angustifolia ◽  
Stage Of Development ◽  
Young Leaves

Seasonal variations in the composition of the essential oils obtained from the same individual (of the same genotype) of Lavandula angustifolia cultivated in Belgrade were determined by GC and GC/MS. The main constituents were 1,8-cineole (7.1–48.4%), linalool (0.1–38.7%), borneol (10.9–27.7%), β-phellandrene (0.5–21.2%) and camphor (1.5–15.8%). Cluster analysis showed that the 21 samples collected each month during the vegetation cycle were separable into three main clades with different compositions of essential oils. In the shoots with flowers, inflorescences and fruits of clade I, linalool is dominant, in the young leaves before flowering and old leaves of clade II, 1,8-cineole is dominant. In the young and incompletely developed leaves of clade III, β-phellandrene is dominant. The composition of the essential oils of lavender depended on the plant part and the stage of development.

scholarly journals Seasonal Variations in the Composition of the Essential Oils of Rosemary (Rosmarinus officinalis, Lamiaceae)

2013 ◽  
Vol 8 (1) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Dmitar Lakušić ◽  
Mihailo Ristić ◽  
Violeta Slavkovska ◽  
Branislava Lakušić
Keyword(s):  
Cluster Analysis ◽  
Chemical Composition ◽  
Essential Oils ◽  
Seasonal Variations ◽  
Bornyl Acetate ◽  
Young Shoot ◽  
Growing Seasons ◽  
Vegetative Cycle ◽  
Definition Of ◽  
Time Of Collection

Seasonal variations in the composition of the essential oils obtained from rosemary plants of the same genotype cultivated in Belgrade were determined by GC and GC/MS. The main constituents were camphor (18.2 - 28.1%), 1,8-cineole (6.4-18.0%), α-pinene (9.7-13.5%), borneol (4.4-9.5%), camphene (5.1-8.7%), β-pinene (2.1-8.1%), β-phellandrene (4.6-6.5%), myrcene (3.4-5.9%) and bornyl acetate (0.2-7.9%). Cluster analysis showed that 16 samples that had been collected each month during the vegetative cycle can be separated into three main clades with different compositions of essential oils. In the shoots with fruits (‘fruits’ - Clade I) and shoots with developed leaves (‘Old shoots’ - Clade III) camphor is dominant. In shoots with young and incompletely developed leaves (‘young shoot’ - Clade II) camphor and 1,8-cineole had almost the same concentration. The fact that the same genotype during the growing seasons can synthesize oils that are so different that they can be classified as different chemotypes confirms the opinion that the chemical composition of essential oils sometimes critically depends on the time of collection. Also, for the definition of chemotypes it is not enough to base this on a chemical analysis of an oil from one phenophase only.

Lavandula angustifolia and Lavandula latifolia Essential Oils from Spain: Aromatic Profile and Bioactivities

Planta Medica ◽  
2015 ◽  
Vol 82 (01/02) ◽  
pp. 163-170 ◽  
Author(s):  
Alejandro Carrasco ◽  
Ramiro Martinez-Gutierrez ◽  
Virginia Tomas ◽  
Jose Tudela
Keyword(s):  
Essential Oils ◽  
Lavandula Angustifolia ◽  
Lavandula Latifolia

scholarly journals Chemical Profile, In Vitro Biological Activity and Comparison of Essential Oils from Fresh and Dried Flowers of Lavandula angustifolia L.

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5317
Author(s):  
Claudio Caprari ◽  
Francesca Fantasma ◽  
Fabio Divino ◽  
Antonio Bucci ◽  
Maria Iorizzi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oils ◽  
Fruits And Vegetables ◽  
Central Italy ◽  
Radical Scavenging ◽  
Sclerotium Rolfsii ◽  
Bactericidal Effect ◽  
Phytopathogenic Fungus ◽  
Lavandula Angustifolia

The chemical composition of essential oils (EOs) from dried and fresh flowers of Lavandula angustifolia L. (lavender), named LA 2019 and LA 2020, respectively, grown in central Italy was analyzed and compared by GC and GC-MS. For both samples, 61 compounds were identified, corresponding to 97.9% and 98.1% of the total essential oils. Explorative data analysis, performed to compare the statistical composition of the samples, resulted in a high level of global similarity (around 93%). The compositions of both samples were characterized by 10 major compounds, with a predominance of Linalool (35.3–36.0%), Borneol (15.6–19.4%) and 1,8-Cineole (11.0–9.0%). The in vitro antibacterial activity assay by disk diffusion tests against Bacillus subtilis PY79 and Escherichia coli DH5α showed inhibition of growth in both indicator strains. In addition, plate counts revealed a bactericidal effect on E. coli, which was particularly noticeable when using oil from the fresh lavender flowers at the highest concentrations. An in vitro antifungal assay showed that the EOs inhibited the growth of Sclerotium rolfsii, a phytopathogenic fungus that causes post-harvest diseases in many fruits and vegetables. The antioxidant activity was also assessed using the ABTS free radical scavenging assay, which showed a different antioxidant activity in both EOs. In addition, the potential application of EOs as a green method to control biodeterioration phenomena on an artistic wood painting (XIX century) was evaluated.

scholarly journals Pharmacological profile of essential oils derived from Lavandula angustifolia and Melissa officinalis with anti-agitation properties: focus on ligand-gated channels

2009 ◽  
Vol 61 (2) ◽  
pp. 267-267 ◽  
Author(s):  
Liping Huang ◽  
Sawsan Abuhamdah ◽  
Melanie-Jayne R. Howes ◽  
Christine L. Dixon ◽  
Mark S. J. Elliot ◽  
...  
Keyword(s):  
Essential Oils ◽  
Melissa Officinalis ◽  
Pharmacological Profile ◽  
Lavandula Angustifolia

scholarly journals Gas Chromatography-Mass Spectrometry (GC-MS) Analysis of Essential Oils from AgNPs and AuNPs Elicited Lavandula angustifolia In Vitro Cultures

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 606 ◽  
Author(s):  
Aneta Wesołowska ◽  
Paula Jadczak ◽  
Danuta Kulpa ◽  
Włodzimierz Przewodowski
Keyword(s):  
Molecular Weight ◽  
Silver Nanoparticles ◽  
Essential Oils ◽  
Culture Media ◽  
In Vitro Cultures ◽  
Gas Chromatography Mass Spectrometry ◽  
Lavandula Angustifolia ◽  
Gold And Silver Nanoparticles ◽  
The Media

The aim of this study was to determine how the addition of gold and silver nanoparticles to culture media affects the composition of essential oils extracted from Lavandula angustifolia propagated on MS media with the addition of 10 and 50 mg·dm−3 of gold (24.2 ± 2.4 nm) and silver (27.5 ± 4.8 nm) nanocolloids. The oil extracted from the lavender tissues propagated on the medium with 10 mg·dm−3 AgNPs (silver nanoparticles) differed the most with respect to the control; oil-10 compounds were not found at all, and 13 others were detected which were not present in the control oil. The addition of AuNPs (gold nanoparticles) and AgNPs to the media resulted in a decrease of lower molecular weight compounds (e.g., α- and β-pinene, camphene, δ-3-carene, p-cymene, 1,8-cineole, trans-pinocarveol, camphoriborneol), which were replaced by those of a higher molecular weight (τ- and α-cadinol 9-cedranone, cadalene, α-bisabolol, cis-14-nor-muurol-5-en-4-one, (E,E)-farnesol).

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