scholarly journals Composition of Essential Oil from Piper jacquemontianum from Eight Provenances of Guatemala

2019 ◽  
Vol 14 (1) ◽  
pp. 1934578X1901400
Author(s):  
Armando Cáceres ◽  
Sully M. Cruz ◽  
José V. Martínez-Arevalo ◽  
Amelia T. Henriques ◽  
Miriam A. Apel
Keyword(s):  
Essential Oil ◽  
Native Species ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
The Pacific ◽  
Wide Range ◽  
The Caribbean ◽  
Main Components ◽  
Main Component ◽  
Selection Of

Piper jacquemontianum Kunth (Piperaceae) is a native species from Central America and the Caribbean lowlands. It is traditionally used as a medicine and condiment in several ethnic groups from the region. Essential oils of dry leaves were obtained from eight ecologically different sites of Guatemala, which were cultivated under similar conditions in the Pacific basin. The essential oil yields obtained by hydrodistillation varied with the site of collection (0.3-1.7%). The essential oil composition was determined by gas chromatography; E-nerolidol was the only compound common to all provenances, although in a wide range (5.7-73.8%), being the main component of four of them. In the oils from other provenances, the main components were linalool, terpinen-4-ol, spathulenol, and α-bisabolol. This is the first report on the variation of the essential oil composition of this species of different provenance cultivated under similar conditions, suggesting high variability in its composition, and demonstrating at least five groups of P. jacquemontianum according to the composition of its essential oil. In further agrotechnological research, selection of the most promising samples could generate unique cultivars which might produce the expected compound.

scholarly journals Essential Oil Composition of Helichrysum conglobatum from Cyprus

2016 ◽  
Vol 11 (10) ◽  
pp. 1934578X1601101
Author(s):  
Kaan Polatoğlua ◽  
Betül Demirci ◽  
İhsan Çalιş ◽  
Kemal Hüsnü Can Başer
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Hexadecanoic Acid ◽  
Oil Composition ◽  
Tetradecanoic Acid ◽  
First Report ◽  
Aerial Parts ◽  
Main Components ◽  
Essential Oil Yield

The essential oil of aerial parts of Helichrysum conglobatum (Viv.) Steudel. (Asteraceae) from Cyprus was analyzed by GC and GC-MS. The essential oil yield was 0.01, v/w. Forty five compounds were identified in the oil comprising 96.1% of the total. The essential oil was mainly composed of sesquiterpene type compounds and oxygenated sesquiterpene derivatives. The main components of the oil were β-caryophyllene (14.6%), γ-curcumene (14.1%), hexadecanoic acid (13.5%), tetradecanoic acid (7.5%), rosifoliol (5.4%) and δ-cadinene (5.3%). This is the first report on the essential oil composition of H. conglobatum from Cyprus.

scholarly journals Essential Oil Composition of the Umbels and Fruit of Prangos Uloptera DC

2007 ◽  
Vol 2 (1) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Hossein Nazemiyeh ◽  
Seied M. Razavi ◽  
Abbas Delazar ◽  
Rogaieh Hajiboland ◽  
Valiollah Mozaffarian ◽  
...  
Keyword(s):  
Essential Oil ◽  
Medicinal Plant ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Main Components ◽  
Fruit Oil

The composition of the essential oils of the umbels and fruit of Prangos uloptera, an indigenous Iranian medicinal plant, was determined by GC-MS analyses. A total of 10 and 18 compounds were identified, respectively, from the essential oils of the umbels and the fruit. The identified compounds represented, respectively, 93.2% and 83.0% of the total essential oils. While the main components of the umbels oil were α-pinene (31.78%), β-bourbonene (15.9%), α-curcumene (10.65%), spathulenol (9%) and m-cymene (5.51%), those of the fruit oil were α-pinene (14.98%), β-bourbonene (7.81%), α-humulene (7.74%), germacrene B (7.23%) and n-tetracosane (6.65%).

Effects of applied nitrogen fertiliser on the chemical composition of the essential oil of three Leptospermum spp

1990 ◽  
Vol 30 (5) ◽  
pp. 681 ◽  
Author(s):  
E Diatloff
Keyword(s):  
Essential Oil ◽  
Native Species ◽  
Steam Distillation ◽  
Native Plants ◽  
Optimal Level ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Oil Components ◽  
Oil Density ◽  
Infertile Soils

Three native species of Leptospermum (L. petersonii, L. Flavescens, L. luehmannii) were grown in an amended podsolic soil under 4 nitrogen (N) levels, 0, 20, 40 and 60 kg Nha, supplied as NH4N03. Plants were harvested after 16 weeks growth, leaves were separated from stems, and essential oil was distilled from leaves by steam distillation. Extracted oils were analysed for their components by gas chromatography. Oil density from L. petersonii was also determined. Growth and oil yield of the 3 Leptospermum species showed no response to N fertilisation. However, the oil composition in L. petersonii and L. flavescens leaves was affected. The greatest response was in the geranial and citronella1 contents in L. petersonii, which peaked in the 40 kg N/ha treatment. This is the first known report of the manipulation of essential oil composition of Australian native plants by N fertilisation. The low optimal level of N fertiliser required for maximum production of valuable oil components indicates that Leptospermum spp. are suitable for infertile soils. The low �-pinene yield of L. luehmannii makes it unsuitable for commercial exploitation.

scholarly journals Variations of Essential Oil Constituents in Oregano (Origanum vulgare subsp. viridulum (= O. heracleoticum) over Cultivation Cycles

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1174 ◽  
Author(s):  
Edoardo Napoli ◽  
Antonio Giovino ◽  
Alessandra Carrubba ◽  
Vandana How Yuen Siong ◽  
Carmelo Rinoldo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Aromatic Plant ◽  
Oil Composition ◽  
Origanum Vulgare ◽  
Harvest Dates ◽  
Quality Aspects ◽  
Beginning Of Flowering ◽  
Main Components ◽  
Over Time

Oregano is—probably—the most appreciated and widespread aromatic plant in Sicily. With the aim of evaluating the modifications of oregano’s essential oil composition over time, between 2013 and 2015 six weekly samplings of three different oregano plantations were carried out, from the beginning of flowering (early May) until the traditional harvest moment (end of June). Samples were hydrodistilled and the obtained essential oils (EOs) were evaluated by means of a combination of GC–FID and GC–MS. The Origanum plants under study were demonstrated to belong to the high-yielding, thymol-type biotypes, with thymol, γ-terpinene and p-cymene as three main components, among the total of about 50 of the evaluated EOs. In each location, EO yields were found to increase throughout survey dates. Significant variations were found in many EO components, both across years and throughout harvest dates within locations. The choice of the harvest moment was confirmed to be crucial in assessing quality aspects of oregano.

scholarly journals Anti-Helicobacter pylori activity and Essential Oil Composition of Thymus caramanicus from Iran

2009 ◽  
Vol 4 (8) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Fereshteh Eftekhar ◽  
Farahnaz Nariman ◽  
Morteza Yousefzadi ◽  
Javad Hadian ◽  
Samad Nejad Ebrahimi
Keyword(s):  
Helicobacter Pylori ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Clinical Isolates ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Oil Composition ◽  
Full Flowering ◽  
Main Component

The essential oil of the dried aerial parts of Thymus caramanicus at full flowering stage was prepared by hydrodistillation with a yield of 2.5% oil. The oil analysis by a combination of capillary GC and GC-MS revealed 26 components of which carvacrol (68.9%) was the main component, followed by p-cymene (6.0%), thymol (5.3%), γ-terpinene (4.6%) and borneol (4.0%) representing 98.9% of the total oil. The in vitro antibacterial activity of the essential oil was determined against ten clinical isolates of Helicobacter pylori using disc diffusion, as well as measurement of minimum inhibitory concentrations. The results showed high inhibitory activity against all test bacteria by the disc diffusion method (zones of inhibition of 50.0 – 65.0 mm). Minimum inhibitory concentration values were within the range 14.5 – 58.0 μg/mL for the clinical isolates.

scholarly journals Essential Oil Composition of Thyme (Thymus zygioides Griseb. var. lycaonicus (Celak.) Ronniger) Wild Growing in Turkey

2020 ◽  
Vol 8 (1) ◽  
pp. 61
Author(s):  
Erman Duman ◽  
Mehmet Musa Özcan ◽  
Zrira Saadiab ◽  
Mustafa Mete Özcan
Keyword(s):  
Essential Oil ◽  
Dry Weight ◽  
Essential Oil Composition ◽  
Weight Basis ◽  
Geranyl Acetate ◽  
Oil Composition ◽  
Aerial Parts ◽  
Linalool Oxide ◽  
Main Components ◽  
Essential Oil Yield

The chemical composition of essential oil, which is isolated by hydrodistillation of aerial parts of Thymus zygioides growing wild in Turkey, have been determined by GC and GC/MS. Essential oil yield on a dry weight basis of aerial parts from T. zygioides was 0.45%. A total of twenty two constituents were identified by GC-MS analyses, the main components representing 92.3% the oil was identified as limonene (24.11%), cis-linalool oxide (22.91%), eucalyptol (8.65%). 3-octonol (7.04%), nerol (4.47%) geranyl acetate (3.19%), carvacrol (2.74%), linalyl propanoate (2.95%) and sabinene (2.23%). The essential oil of T. zygioides was characterized by its high content of limonene (24.11%).

scholarly journals (132) Study on Morphological Characteristics and Essential Oil Constituents Bulgarian Oil-bearing Rose

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1013A-1013
Author(s):  
Natasha Kovacheva ◽  
Krasimir Rusanov ◽  
Valtcho Jeliazkov (Zheljazkov) ◽  
Nedko Nedkov
Keyword(s):  
Essential Oil ◽  
Morphological Characteristics ◽  
Correlation Coefficients ◽  
Oil Production ◽  
Essential Oil Composition ◽  
Rosa Damascena ◽  
Oil Composition ◽  
Breeding Work ◽  
Rose Oil ◽  
Selection Of

Bulgaria is famous for its 330-year-old-tradition in rose oil production, which is based on the Kazanluk rose (Rosa damascena Mill. f. trigintipetala Dieck.). The Bulgarian rose oil (otto) is recognized as the ultimate rose oil. For successful selection and breeding work of oil-bearing roses, information is needed on the variation of morphological and phenological characteristics and essential oil composition of locally available genotypes. We estimated the correlation coefficients between yields and morphological characteristics of 15 genotypes of Bulgarian oil-bearing rose. It was found that rose yields depended mostly on the number of flowers, the number of flower branches per bush, and the weight of individual flowers (r = 0.99, 0.88, and 0.84, respectively). Also, we established correlations between the concentrations of various essential oil constituents of the Bulgarian rose oil. Generally, higher concentration of citronellol + nerol was associated with lower concentration of geraniol and stereo-terpens (r = –0.76 and –0.59, respectively). Also, higher concentration of citronellol + nerol was positively correlated to increased concentration of terpene aldehydes (r = 0.63) and esters (r = 0.48). The geraniol concentration was positively correlated to stearoptenes (r = 0.57). Both morphological characteristics and essential oil constituents should be used for further selection of high-yielding cultivars with desirable essential oil composition.

scholarly journals Essential oil composition of wild growing Sage from R. Macedonia

2012 ◽  
Vol 57 ◽  
pp. 71-76 ◽  
Author(s):  
Gjoshe Stefkov ◽  
Ivana Cvetkovikj ◽  
Marija Karapandzova ◽  
Svetlana Kulevanova
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Republic Of Macedonia ◽  
Three Samples ◽  
Different Populations ◽  
Salvia Officinalis L ◽  
Main Components ◽  
Essential Oil Yield

The main objective of this study was to analyze and identify the essential oil composition of S. officinalis populations growing in Republic of Macedonia and to evaluate these data according to different standards’ requirements for, commercially most utilized, Dalmatian sage. The essential oil yield, obtained after hydrodestilation from leaves, of three different populations of Salvia officinalis L. from Republic of Macedonia was determined, varying from 1.40 to 3.46%. The GC/FID/MS analysis of the composition of the essential oils revealed 63, 57 and 51 components in Galicica Mtn., Jablanica Mtn. and Karaorman Mtn. sage populations, respectively. The main components of the oil, in all three samples, were the terpene hydrocarbons, encompassing the monoterpenes: camphor (13.15 - 25.91%), α-thujone (19.25 - 26.33%), β-thujone (2.03 - 5.28%), 1,8-cineole (6.51 – 13.60%), α-pinene (0.93 – 1.47%), borneol (1.07 – 4.67%), then sesquiterpenes: trans (E)-caryophyllene (1.72 – 5.33%), α-humulene (2.89 – 7.99%), viridiflorol (4.27 – 7.99%), and the diterpene manool (2.13 - 3.79%). Thus, our results for the essential oil composition of sage complied with the reference values specified in the DAC 86 monograph for Salvia essential oil.

scholarly journals Essential oil yield and composition of native species of the Myrtaceae family from “Campos Gerais” of the Atlantic Forest in Parana State

2019 ◽  
Vol 41 ◽  
pp. e45
Author(s):  
Luiz Everson da Silva ◽  
Wanderlei Do Amaral ◽  
Cícero Deschamps ◽  
Luiz Antonio Biasi ◽  
Humberto Ribeiro Bizzo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Atlantic Forest ◽  
Native Species ◽  
Oil Extraction ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Oil Composition ◽  
Botanical Species ◽  
Drying Conditions ◽  
Essential Oil Yield

This work aimed to evaluate the essential oil yield and composition of the species Myrciaria delicatula, Campomanesia xantocarpha, Campomanesia aurea, Calyptranthes clusiifolia, Myrcia splendens, Eugenia osoriana, Myrciaria tenella, Myrceugenia reitzii, Calyptranthes concinna e Myrcia arborensis from a segment of the Atlantic Forest of Parana State. The sample collections for essential oil extraction, photographic records and herbarium specimen’s preparation for botanical species identification were made at the Private Reserve of Natural Heritage (PRNP) Butuguara in Palmeira (PR), with “Campos Gerais” formations.  Myrceugenia reitzii showed eesential oil yield superior to other species and the essential oil yield of all species increased after drying. The chemical composition in the samples showed mono and sesquiterpenes, being the sesquiterpenes in higher percentages. The drying conditions affected the essential oil composition of the for the majority of the evaluated species

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)

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