scholarly journals Variability of the Needle Essential Oils of Pinus peuce from Different Populations in Montenegro and Serbia

2008 ◽  
Vol 5 (9) ◽  
pp. 1900-1900 ◽  
Author(s):  
Biljana Nikolić ◽  
Mihailo Ristić ◽  
Srdjan Bojović ◽  
Petar D. Marin
Keyword(s):  
Essential Oils ◽  
Different Populations ◽  
Pinus Peuce

Variability of the Root Essential Oils ofSeseli rigidumWaldst. &Kit. (Apiaceae) from Different Populations in Serbia

2013 ◽  
Vol 10 (9) ◽  
pp. 1653-1666 ◽  
Author(s):  
Mirjana D. Marčetić ◽  
Branislava S. Lakušić ◽  
Dmitar V. Lakušić ◽  
Nada N. Kovačević
Keyword(s):  
Essential Oils ◽  
Different Populations

scholarly journals Comparison of the Essential Oils of Leaves and Stem Bark from Two Different Populations of Drimys Winteri a Chilean Herbal Medicine

2011 ◽  
Vol 6 (6) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Orlando Muñoz ◽  
Phlippe Christen ◽  
Silvian Cretton ◽  
Alejandro F. Barrero ◽  
Armando Lara ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Herbal Medicine ◽  
Essential Oils ◽  
Stem Bark ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Different Populations ◽  
Main Components ◽  
Chemical Groups ◽  
Drimys Winteri

The chemical composition of the essential oils obtained by hydrodistillation of stem bark and leaves of Drimys winteri J.R. et G. Foster var. chilensis /DC A. Gray ( Winteraceae) from Chiloe Island (ID) and Continental Chile (Santiago) (CD) were studied by GC and GC/MS. Sesquiterpene hydrocarbons constituted the main chemical groups in the stem bark oils, with α-santalene, trans-β-bergamotene and curcumenes as the major components. Monoterpenes constituted the main chemical groups in the leaves of Island plants with α-pinene (23.1%) β-pinene (43.6%) and linalool (10.5%) as the main components whereas sesquiterpenes (germacrene D 17.6%) and phenylpropanoids (safrole 20.8%) are the most abundant in the leaves of Continental plants.

Antifeedant effects and chemical composition of essential oils from different populations of Lavandula luisieri L.

2006 ◽  
Vol 34 (8) ◽  
pp. 609-616 ◽  
Author(s):  
Azucena González-Coloma ◽  
Darío Martín-Benito ◽  
Nagla Mohamed ◽  
Ma Concepción García-Vallejo ◽  
Ana Cristina Soria
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Different Populations

scholarly journals Environmental Influences on Essential Oils in Roots of Anemopsis californica

HortScience ◽  
2007 ◽  
Vol 42 (7) ◽  
pp. 1578-1583 ◽  
Author(s):  
Andrea L. Medina-Holguín ◽  
Sandra Micheletto ◽  
F. Omar Holguín ◽  
Jaime Rodriguez ◽  
Mary A. O'Connell ◽  
...  
Keyword(s):  
New Mexico ◽  
Essential Oil ◽  
Essential Oils ◽  
Environmental Conditions ◽  
N Fertilizer ◽  
Wild Plants ◽  
Oil Composition ◽  
Anemopsis Californica ◽  
Chemical Profiles ◽  
Different Populations

The climate conditions and chemical composition of root essential oils for 17 populations of Anemopsis californica in New Mexico were examined. The objective of this study was to observe the effect of environmental conditions and management conditions on essential oil composition in different populations of A. californica. Chemical concentrations of three abundant compounds—methyleugenol, thymol, and piperitone—were determined. Maximum accumulations of each compound were associated with different mean annual temperatures, precipitation, and elevation. Similar chemical profiles were detected in root samples recollected for four populations, suggesting retention of unique chemical profiles in different populations. Vegetative propagation of wild plants under cultivated conditions did not significantly alter the chemical profile of the root essential oil. The chemical concentrations for six essential oil components of A. californica roots were determined under field conditions with varying irrigation and nitrogen (N) fertilizer regimens. The concentration of only two compounds, thymol and piperitone, was increased by increasing irrigation. The concentration of all other compounds, methyeugenol, elemicin, 1,8-cineole, and myrtenol, were independent of the irrigation rates and N fertilizer rates used in the study. These results suggest that the chemical variability observed among different populations of A. californica is primarily genetically controlled and the environmental conditions in New Mexico are conducive to the production of this medicinal plant as a high-value crop.

scholarly journals The Impact of Geographical Location on the Chemical Compositions of Pimpinella lutea Desf. Growing in Tunisia

2021 ◽  
Vol 11 (16) ◽  
pp. 7739
Author(s):  
Hekmat AL-Hmadi ◽  
Ridha El Mokni ◽  
Rajesh K. Joshi ◽  
Mohamed L. Ashour ◽  
Saoussen Hammami
Keyword(s):  
Essential Oils ◽  
Geographical Location ◽  
Chemical Compositions ◽  
Different Populations ◽  
High Level ◽  
Physical Environmental Factors ◽  
The Impact ◽  
First Time ◽  
North And South

Essential oils are generally produced to confer the protection of medicinal plants against several natural enemies. Variations of chemical and physical environmental factors exert significant influences on plant development. They hence may affect the quality and quantity of volatile organic metabolites of interest and, therefore, the economic applications of essential oils. This research focused on the effects of the harvest region on the production and analytes present in Tunisian Pimpinella lutea Desf. Apiaceae that were collected in three different growing environments (North and South Bizerta and Tabarka). Essential oils extracted from a variety of genotypes were analyzed, for the first time, using gas chromatography and mass spectrometry (GC/FID and GC/MS). The determination of the percentage of essential oil components allowed the recognition of three chemotypes: α-trans-Bergamotene quantified at a percentage of 18.1% in North Bizerta (NBEO), muurola-4,10(14)-dien-1-β-ol identified in South Bizerta (10.1%, SBEO) and acora-3,7(14)-dien present in a high level of 29.1% in Tabarka population (TEO). The richness of different populations in sesquiterpenes (60.2–78.1%) suggests that Pimpinella lutea Desf. may be used in different industrial segments.

scholarly journals Assessment of the Antioxidant Ability of Thymus albicans, T. mastichina, T. camphoratus and T. carnosus Essential Oils by TBARS and Micellar Model systems

2007 ◽  
Vol 2 (4) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
M. Graça Miguel ◽  
Ludmila A. Costa ◽  
A. Cristina Figueiredo ◽  
José G. Barroso ◽  
Luís G. Pedro
Keyword(s):  
Antioxidant Activity ◽  
Essential Oils ◽  
Model System ◽  
Model Systems ◽  
Antioxidant Ability ◽  
Vegetative Phase ◽  
The Third ◽  
Different Populations ◽  
Main Components ◽  
Tbars Assay

The essential oils isolated by hydrodistillation from different populations of Thymus albicans, T. mastichina, T. carnosus and T. camphoratus, collected during the vegetative phase, were analysed by GC and GC-MS. The same oils were used in the antioxidant activity evaluation using the TBARS assay and the micellar model systems. T. albicans oils and two of the oils from T. mastichina populations were 1,8-cineole-rich. The third T. mastichina oil was linalool-rich. trans-Sabinene hydrate, borneol and linalool in similar amounts, and 1,8-cineole were the main components of the oils from each of the three populations of T. camphoratus. T. carnosus oils were mainly composed of borneol. All essential oils revealed some degree of antioxidant activity either in the presence or absence of ABAP in the TBARS method. The micellar model system showed higher antioxidant indices than those obtained by the TBARS method.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oils of Pinus peuce (Pinaceae) Growing Wild in R. Macedonia

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Marija Karapandzova ◽  
Gjose Stefkov ◽  
Ivana Cvetkovikj ◽  
Elena Trajkovska-Dokik ◽  
Ana Kaftandzieva ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Chemical Composition ◽  
Haemophilus Influenzae ◽  
Essential Oils ◽  
Streptococcus Agalactiae ◽  
Bornyl Acetate ◽  
Acinetobacter Spp ◽  
Pinus Peuce

The chemical composition and antimicrobial activity of the essential oils isolated from twigs with needles (T+N) and from twigs without needles (T-N) from wild Pinus peuce Griseb. (Pinaceae), from three different locations in R. Macedonia, were investigated. Essential oil yields of T+N ranged from 7.5 mL/kg to 12.5 mL/kg and for T-N from 13.8 mL/kg to 17.3 mL/kg. GC/FID/MS analysis of the essential oils revealed eighty-four components, representing 93.7–95.7% and 91.2–92.0% of the T+N and T-N oils, respectively. The major components in T+N and T-N oils were monoterpenes: α-pinene (23.8–39.9%, 21.2–23.3%), camphene (2.2–5.5%, 0.7–2.0%), β-pinene (10.1–17.1%, 8.2–16.4%), myrcene (1.2–1.41%, 1.6–2.5%), limonene+β-phellandrene (6.8–14.0%, 8.8–23.6%) and bornyl acetate (2.3–6.9%, 1.1–3.4%), followed by the sesquiterpenes: trans-( E)-caryophyllene (3.6–4.3%, 3.2–7.3%), germacrene D (7.1–9.5%, 5.0–10.3%) and δ-cadinene (2.1–3.1%, 3.3–4.2%, respectively). Antimicrobial screening of the essential oils was made by disk diffusion and broth dilution methods against 13 bacterial isolates of Gram-positive and Gram-negative bacteria and one strain of Candida albicans. T-N essential oils showed antimicrobial activity toward Streptococcus pneumoniae, Staphylococcus aureus, S. epidermidis and Candida albicans as well as Streptococcus agalactiae, Acinetobacter spp. and Haemophilus influenzae. The antimicrobial activity of T+N essential oils was greater, especially against Streptococcus agalactiae, S. pyogenes, Enterococcus and Candida albicans, followed by Haemophilus influenzae, Acinetobacter spp., Escherichia coli, Salmonella enteritidis, Staphylococcus aureus and S. epidermidis. Minimal inhibitory concentrations (MICs) of all tested essential oils ranged from 15–125 μL/mL. Summarizing the obtained results, the antimicrobial activity of Pinus peuce T+N and T-N essential oils collected from different localities in R. Macedonia varied considerably. These alterations in the antimicrobial activity can be attributed to the differences in the quantitative composition and percentage amounts of the components present in the respective essential oils, although it was evident that there were no differences in the qualitative composition of the essential oils, regardless of the locality of collection, or the type of plant material (T+N or T-N).

scholarly journals Screening of Chemical Composition, in vitro Antioxidant, α-Amylase and α-Glucosidase Inhibitory Activities of the Leaf Essential Oils of Cinnamomum wightii from Different Populations

2018 ◽  
Vol 13 (11) ◽  
pp. 1934578X1801301 ◽  
Author(s):  
Venkatraman Sriramavaratharajan ◽  
Ramar Murugan
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Slow Release ◽  
Leaf Essential Oil ◽  
Different Populations ◽  
Inhibitory Activities ◽  
The Western Ghats ◽  
Nutraceutical Products

Cnnamomum wightii is an endemic species of the Western Ghats, India and is used in Ayurveda and Siddha systems of medicine. Its bark and leaves are adulterated with commercial cinnamon in southern India. Despite its medicinal and commercial importance, the species remains underexplored. The objective of the present work was to screen the chemical composition, in vitro antioxidant, α-amylase and α-glucosidase inhibitory activities of the leaf essential oil of C. wightii collected from different populations. GC-FID and GC-MS analyses of the leaf essential oils from seven accessions enabled the identification of a total of 70 constituents, of which only 16 compounds were present in all samples. Eleven major constituents (> 5%) were identified, of which only linalool and spathulenol were present in all accessions as major constituents. Among seven accessions, essential oil from Parson's valley, Nilgiris exhibited better antioxidant activity with IC50 values of 2.552 ± 0.13 and 3.485 ± 0.09 mg/mL for ABTS and DPPH respectively. The essential oil from Korakundah, Nilgiris showed better hypoglycemic activity with IC50 values of 1.617 ± 0.02 and 1.146 ± 0.02 mg/mL for α-amylase and α-glucosidase inhibitory activities respectively. The leaf essential oils of C. wightii may be used in nutraceutical products focusing diabetes mellitus as the moderate inhibition of the metabolic enzymes has the advantage of slow release of glucose.

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