Seasonal Variation in the Essential Oil Composition of Origanum majorana L. Cultivated in Egypt

2009 ◽  
Vol 64 (9-10) ◽  
pp. 611-614 ◽  
Author(s):  
Fathy M. Soliman ◽  
Miriam F. Yousif ◽  
Soumaya S. Zaghloul ◽  
Mona M. Okba
Keyword(s):  
Seasonal Variation ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Origanum Majorana ◽  
Main Component ◽  
Autumn And Winter ◽  
Time Of Collection

Z. Naturforsch. 64 c, 611 - 614 (2009); received March 1/30, 2009 The hydrodistilled essential oil content of Origanum majorana L. (Lamiaceae) ranged from 2.5 - 3% with the maximal value (3%) in spring. Analysis of the oil by GC/MS resulted in the identifi cation of 15, 15, 11, and 14 components in the oils prepared in spring, summer, autumn, and winter, respectively. The composition of the essential oils differed quantitatively and qualitatively according to the time of collection. Thymol (38.4%) and cis-sabinene hydrate (25.3%) were the major components in spring plants. Terpinen-4-ol (37.4%, 20.5%, 16.3%) was a major component in the summer, autumn and winter oils, respectively. cis- Sabinene hydrate (54.4%) was major in winter plants while terpinolene (43.1%) was the main component in autumn plants. Other components detected in lower amounts in all oil samples were sabinene and p-cymene (up to 7.4% and 13.9% in autumn), and α-terpinene (up to 13.3% in summer)

scholarly journals Volatile Oil Composition of Some Commercial Medicinal Plants Sold in Konya, Turkey

2019 ◽  
pp. 1-5
Author(s):  
Eray Tulukcu
Keyword(s):  
Medicinal Plants ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Local Community ◽  
Volatile Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Thyme Essential Oil ◽  
The Difference

This study was conducted to determine the essential oil composition of some medicinal plants from herbalists that local community have interest in; The research was carried out in the Medicinal Plants Laboratory of  Konya, in 2014 – 2015. The medicinal plants used in the research were supplied by herbalists and wholesalers who supply medicinal plants in Konya. At the end of this study, essential oil composition of medicinal plants ranged from 0.71 % (Daphne) to 5% (Thyme). The lavender essential oil composition ranged between 2% and 5%, while the composition of thyme essential oil ranged between 1% and 5%. There are several reasons for the change observed in the essential oil content of medicinal plants. In general, the effect of difference in the proportion of essential oils of the medicinal plants used in the study was as a result of the difference in regions, domestically and abroad where these plants were collected.

scholarly journals Seasonal Variation in the Leaf Essential Oil Composition of Zanthoxylum clava-herculis growing in Huntsville, Alabama

2010 ◽  
Vol 5 (3) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Lauren C. Eiter ◽  
Henry Fadamiro ◽  
William N. Setzer
Keyword(s):  
Seasonal Variation ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Growing Season ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Monoterpene Hydrocarbons ◽  
Leaf Essential Oil ◽  
Individual Trees

The seasonal variation in the chemical composition of the leaf essential oil of Zanthoxylum clava-herculis has been analyzed by GC-MS. Three individual trees were sampled four times during the course of the 2004 growing season. Notable differences were recorded in the essential oil yields from the three trees on the four collection dates; yields were highest in May and lowest in July The leaf essential oils were made up of 25 components, largely menthane monoterpenoids, dominated by limonene (44-73%) and 1,8-cineole (16-43%), with lesser amounts of α-thujene, linalool, γ-terpinene, and α-terpineol. The ratio of oxygenated monoterpenoids to monoterpene hydrocarbons generally increased during the season, largely reflected in the 1,8-cineole/limonene ratio.

scholarly journals Comparative evaluation of chamomile (Matricaria recutita L.) populations from different origin

2006 ◽  
Vol 12 (1) ◽  
Author(s):  
B. Gosztola ◽  
E. Németh ◽  
S. Sárosi ◽  
K. Szabó ◽  
A. Kozák
Keyword(s):  
Essential Oil ◽  
Plant Height ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Wild Populations ◽  
Oil Composition ◽  
Natural Habitats ◽  
Minimum Requirement ◽  
Flower Diameter ◽  
Main Component

In our research project under cultivation we examined 4 cultivars ('Soroksári 40', 'Lutea , 'Goral', 'Bona') and 28 wild populations of chamomile assuring all of them the same environmental conditions. Plant height, flower-diameter, essential-oil content, and the main terpenoid and flavonoid composition were analysed. The aim of our study was to establish the genetic background of breeding a new cultivar as well as encircle those natural habitats that give chamomile drug with the best quality. In the case of plant height populations from the Great Hungarian Plain were lower than plants from Transdanubia and the control cultivars. Between the wild and the standard individuals we found significant differences with relevance to the flower-diameter. With regard to the essential oil content the populations were very heterogeneous even those, which came from the same habitat. Populations form Transdanubia and Nagyiván reached the essential oil level of the cultivars (0.721-0.931 gi100g), and 75% of the examined plants exceeded the minimum requirement of the PhHg VIII. According to the essential oil composition our previous statement was confirmed that in the populations of Transdanubia and Northern part of Danube—Tisza Mid Region the main component is bisabolol-oxide A (30-41.2%), while plants native to the territory cast of the river Tisza are mainly characterised by a-bisabolol (32.3-48.4). In some samples the ratio of bisabolol-oxide B was more than 10%. The chamazulene content was higher in the cultivars selected to this component (above 20%), than in the wild populations (varied between 1.22 and 17.2%). Populations originated from the central part of Hortobágy region had extremely high apigenin content (10-13 mg/g), but in the case of chlorogenic acid, hyperoside and quercitrin we did not find any differences affected by the origin.

Review of the Essential Oil Composition of Iranian Endemic and Native Taxa of Apiaceae (Umbelliferae)

2020 ◽  
Vol 24 (9) ◽  
pp. 909-1009
Author(s):  
Maryam Akaberi ◽  
Zahra Tayarani-Najaran ◽  
Iraj Mehregan ◽  
Javad Asili ◽  
Amirhossein Sahebkar ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Present Review ◽  
Aromatic Plants ◽  
Oil Composition

One of the most important families of Iranian flora is Apiaceae (Umbelliferae). Most of the species of this family are aromatic plants and rich in essential oils with diverse structures. In the present review, the essential oil composition of 63 genera comprising 141 Apiaceae (66.4% native 33.6% endemic) is summarized.

Evaluation of antioxidant and antimicrobial activity of Ziziphora ‎clinopodiodes essential oil eluted at different times

2020 ◽  
Vol 16 ◽  
Author(s):  
Mojgan Alizadeh ◽  
Akram Arianfar ◽  
Ameneh Mohammadi
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Positive Control ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Citronellic Acid ◽  
Antimicrobial And Antioxidant Activity

Objective: Ziziphora clinopodioides is an edible medicinal plant belongs to the Labiatae family that widespread all over Iran. It used as culinary and also in cold and cough treatments in Iran. The aim of present work was to evaluate the effect of different timeframes during the hydrodistillation on essential oil composition, antimicrobial and antioxidant activity. Materials and Methods: The essential oil of Z. clinopodiodes was extracted via hydrodistillation with Clevenger apparatus. The fractions of essential oil were captured at 6 times from the beginning of the distillation: (10, 20, 60, 120, 180 and 240 min). The fractions of essential oil were analyzed by GC/MS and their antibacterial, antifungal and antioxidant activities were studied by Disk - well diffusion and DPPH methods respectively. Results: Six distillation times and whole essential oil were captured during the hydrodistillation. Essential oil yield dropped off significantly during distillation progressed (1.0% for 10 min and 0.025 for 240 min). 1,8 Cineol, Isomenthone, Pulegone, Piperitenone and Citronellic acid were major compounds in fractions and they were affected by distillation times. Pulegone was major compound in all of essential oils. In antioxidant activity assay, whole essential oil was stronger than was stronger than positive control and fractions of essential oil, because of higher levels of Isomenthone, Piperitenone and Citronellic acid. Strongest antimicrobial activity against S. aureus, E. coli and C. albicans was observed from 10 min fraction. Conclusion: Our results indicated that distillation time can create essential oils with specific properties and we can achieve to more efficient essential oil in short times.

scholarly journals Compositional Analysis and Aroma Evaluation of Feijoa Essential Oils from New Zealand Grown Cultivars

Molecules ◽  
2019 ◽  
Vol 24 (11) ◽  
pp. 2053 ◽  
Author(s):  
Yaoyao Peng ◽  
Karen Suzanne Bishop ◽  
Siew Young Quek
Keyword(s):  
New Zealand ◽  
Essential Oil ◽  
Essential Oils ◽  
Extraction Method ◽  
Compositional Analysis ◽  
Extraction Methods ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Active Compounds ◽  
Initial Comparison

Feijoa is an aromatic fruit and the essential oil from feijoa peel could be a valuable by-product in the juicing industry. An initial comparison of the essential oil extraction methods, steam-distillation and hydro-distillation, was conducted. The volatile compounds in the essential oils from four feijoa cultivars were identified and semi-quantified by GC-MS and the aroma active compounds in each essential oil were characterized using SPME-GC-O-MS. Hydro-distillation, with a material to water ratio of 1:4 and an extraction time of 90 min, was the optimized extraction method for feijoa essential oil. The Wiki Tu cultivar produced the highest essential oil yield among the four selected cultivars. A total of 160 compounds were detected, among which 90 compounds were reported for the first time in feijoa essential oils. Terpenes and esters were dominant compounds in feijoa essential oil composition and were also major contributors to feijoa essential oil aroma. Key aroma active compounds in feijoa essential oils were α-terpineol, ethyl benzoate, (Z)-3-hexenyl hexanoate, linalool, (E)-geraniol, 2-undecanone, 3-octanone, α-cubebene, and germacrene D. This is the first report on the optimization of the extraction method and the establishment of the aroma profile of feijoa essential oils, with a comparison of four New Zealand grown cultivars.

Seasonal Variation in Wormwood (Artemisia absinthiumL.) Essential Oil Composition

1999 ◽  
Vol 11 (5) ◽  
pp. 619-622 ◽  
Author(s):  
Amaia Ariño ◽  
Inés Arberas ◽  
Gustavo Renobales ◽  
Silvia Arriaga ◽  
Juan B. Domínguez
Keyword(s):  
Seasonal Variation ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition

scholarly journals Changes in the essential oil composition of Majorana hortensis Moench. cultivated in India during plant ontogeny

2010 ◽  
Vol 75 (4) ◽  
pp. 441-447 ◽  
Author(s):  
Ram Verma ◽  
Rajesh Verma ◽  
Amit Chauhan ◽  
Ajai Yadav
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Western Himalaya ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Plant Ontogeny ◽  
Different Ages

The essential oil content and composition of 'sweet marjoram? (Majorana hortensis Moench) cultivated in the Kumaon region of the western Himalaya was studied at different ages of the crop. The samples were taken after 60, 90, 120 and 150 days of transplanting. The essential oil contents varied from 0.20 % to 0.70 %. The essential oil was analyzed by GC and GC-MS. Twenty eight components, representing 96.53% - 98.44% of the oil, were identified. The major essential oil constituents, viz., (Z)-sabinene hydrate (37.05% - 47.49%), terpinen-4-ol (14.45% - 16.22%) and (E)-sabinene hydrate (5.81% - 6.97 %) showed considerable variation in their concentrations in relation to crop age.

scholarly journals Essential Oil Composition ofPinus peuceGriseb. Needles and Twigs from Two National Parks of Kosovo

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Avni Hajdari ◽  
Behxhet Mustafa ◽  
Dashnor Nebija ◽  
Hyrmete Selimi ◽  
Zeqir Veselaj ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
National Park ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Plant Materials ◽  
Geographical Variations

The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of thePinus peuceGrisebach, Pinaceae in Kosovo. Plant materials were collected from three populations in the Sharri National Park and from four other populations in the Bjeshkët e Nemuna National Park, in Kosovo. Essential oils were obtained by steam distillation and analyzed by GC-FID (Gas Chromatography-Flame Ionization Detection) and GC-MS (Gas Chromatography-Mass Spectrometry). The results showed that the yield of essential oils (v/wdry weight) varied depending on the origin of population and the plant organs and ranged from 0.7 to 3.3%. In total, 51 compounds were identified. The main compounds wereα-pinene (needles: 21.6–34.9%; twigs: 11.0–24%),β-phellandrene (needles: 4.1–27.7; twigs: 29.0–49.8%), andβ-pinene (needles: 10.0–16.1; twigs: 6.9–20.7%). HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used to assess geographical variations in essential oil composition. Statistical analysis showed that the analyzed populations are grouped in three main clusters which seem to reflect microclimatic conditions on the chemical composition of the essential oils.

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