Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
2010, Acta periodica technologica
Biochemical Systematics and Ecology
Phytotoxic effects of Lantana camara, Eucalyptus camaldulensis and Eriocephalus africanus essential oils in weeds of Mediterranean summer crops2009 •
In the present study essential oil compositions from leaves, stem s and immature flowers of Eucalyptus camaldulensis Dehnh. from Malaysia and their cytotoxicity effects were investigated. The essential oils were obtained by hydrodistillation and the composition was determined by gas chromatography-mass spectrometry (GC-MS). The cytotoxicity of the essential oils was evaluated by MTT assay. The oil yields of leaves, stems and immature flowers of the plant represented 1.40, 0.57 and 0.46 %, respectively, based on dry weight. Fifteen major compounds were identified represented 98.8, 97.5 and 99.5% of the compounds in the leaves, stems and immature flowers, respectively. Monoterpenes hydrocarbons were predominant in the three oil samples. The flower oil was the highest in oxygenated monoterpenes content (19.6%). The most abundant compounds in the three essential oils were γ-terpinene, as a principal oil component (57.4–72.5%) followed by o-cymene (14.6–26.3%) and terpinen-4-ol (6.6–16.2%). E. camaldulensis leaves essential oil demonstrated cytotoxic effects in three tested cancer cell lines; WEHI-3, HT-29 and HL-60. WEHI-3 was the most sensitive with IC50 16.1. The essential oil exhibited less cytotoxic effects in HT-29 and HL-60 cells (IC50 =50.5 and 42.1, respectively ). Also, it exhibited a weak cytotoxic effect in RAW 264.7 cells. The main component of the oil, γ-terpinene also, showed a very weak cytotoxic effect in the tested cell lines without reaching IC50 values within the studied concentration ranges. These findings add significant information to the pharmacological effects of E. camaldulensis essential oil and to its cytotoxic properties, thus justifying and reinforcing the pharmaceutical use of this plant oil.
Journal of Essential Oil Research
Essential Oil of Eucalyptus camaldulensis Dehn. from South Florida: A High Cryptone/Low Cineole Eucalyptus2000 •
The freshly distilled essential oil from the leaves of Eucalyptus camaldulensis collected in Tampa, FL, were analyzed by GC/MS. The major constituents identified in the oil included p-cymene (35.0%), ciyptone (13.7%), terpinen-4-ol (5.7%), spathulenol (4.3%), and cuminaldehyde (3.7%). Relatively a very low amount of 1,8-cineole (2.7%) was found. The oil was not typical in chemical composition of the high cineole types of this species most often referenced in the literature and was found to be one of the highest cryptone containing essential oils yet reported.
Flavour and Fragrance Journal
The essential oils ofEucalyptus camaldulensis and its natural hybrid (clone 583) from Morocco2002 •
In this work, the essential oils of a natural E. camaldulensis (clone 583) hybrid were studied. Yield (ml/100 g dry weight) production was determined. This is higher than the parental species (E. camaldulensis), which has 0.79% of essential oils vs. 0.90% for the hybrid species. About 40 components were detected by chromatography analysis. Hybrid essential oils are richer in 1,8-cineole (84.92%) than the parental species (42.35%). The α-pinene content of the hybrid is inferior to that of parental species (2.5% vs. 28.30% for E. camaldulensis). Use of the crystallization method allowed us to obtain approximately 75% of essential oils, with about 95% of 1,8-cineole. Copyright © 2002 John Wiley & Sons, Ltd.
Flavour and Fragrance Journal
Chemical composition of Eucalyptus essential oils grown in Uruguay1990 •
STUDY OF ESSENTIAL OILS ADSORPTION ON THREE PHOSPHATE FERTILIZERS
CICEQ_Vol24_ No3_p251-266_Jul-Sep_2018.pdf2018 •
In this paper, we report the study of essential oils adsorption on three phosphate fertilizers: monoammonium phosphate (MAP), diammonium phosphate (DAP) and triple superphosphate (TSP), with the aim to prepare a bifunctional product which can be used as a fertilizer and biopesticide. Essential oils were isolated by steam distillation from Eucalyptus salubris and Artemisia herbaalba and analysed by GC-MS and GC-FID. About 12 and 22 constituents were identified and quantified in these oils, respectively. The kinetic adsorption study of essential oils showed that DAP and TSP exhibited high adsorption capacities compared with MAP (DAP (0.143 g/g) and TSP (0.139 g/g) for E. salubris essential oil and (DAP (0.135 g/g) and TSP (0.134 g/g) for A. herba--alba essential oil). The adsorption isotherms of all identified components in the E. salubris essential oil were determined and the Langmuir and Freundlich models were used to describe the experimental data. Langmuir model fitted well the isotherms of the majority of the essential oil components (1,8-cineole, α-pinene, β-pinene, isopinocarveol, β-eudesmol, α-phellandrene, pinocarvone, p-cymene and spathulenol) and only terpineol and globulol isotherm data followed the Freundlich model. The selectivity was affected by the abundance of each component in the crude essential oil and the polarity of terpenic components.
The present work was conducted to study the differences in growth characters, essential oil production as well as its chemical composition. Also, study the molecular genetics identification of eight species of genus Eucalyptus (E. stricklandii, E. astringens, E. phaenophylla, E. leucoxylon, E. transcontinentalis, E. sargentii) obtained from Forest and Water Ministry, Tunisia and the other two species,(E. camaldulensis and C. citriodora (botanists now use the name " Corymbia Citriodora " in referring to Eucalyptus citriodora)) obtained from The Forest and Timber Trees Research Department, Horticulture Research Institute, all of them cultivated under Egyptian conditions for breeding programs and as provenance. The volatile oil percent in the dry leaves ranged from (0.10% to 4.23 %) in the first year and from (0.10% to 4.44%) in the second year in E. phaenophylla and E. astringens, respectively. GC/MS analysis of the volatile oil of dry leaves was conducted for second year only. The main component of E. stricklandii, E. astringns, E. transcontinentalis and E. camaldulensis was α-Terpinene, E. Phaenophylla was Camphene, E. Leucoxylon was trans-4-Thujanol, while in E. sargentii was Myrtenol and in C. citriodora was α-Copaen-11-ol. For molecular study Random Amplified Polymorphic DNA (RAPD) was performed and was efficient in detecting polymorphism and genetic variation within and between Eucalyptus species. In RAPD analysis, 5selected primers displayed a total of 85 amplified fragments, in which 68 (80%) were polymorphic fragments. Thirty-nine out of 85 RAPD-PCR fragments were found to be useful as cultivar specific markers. The largest number of RAPD-PCR markers was scored for C. citriodora (40 markers), while the lowest (26 markers) was scored for E. leucoxylon. In ISSR analysis, 5 of the tested ISSR primers generated variable banding patterns. A total of 55 out of 68 ISSR fragments were polymorphic. Thirty-nine DNA amplified fragments were considered as cultivar-specific markers. Genetic similarities among the Eucalyptus species were estimated according to the RAPD and ISSR data. In conclusion, RAPD and ISSR polymorphisms could be used as efficient tools for the detection of similarities and phylogenetic relationships of the studied genotypes, which could be useful in the breeding programs.
Leaves of Eucalyptus camaldulensis and Callistemon viminalis on hydrodistilation, gave 1.40 % and 0.80% w/w an oil dried weight basis, respectively. GC-MS analysis of the oils resulted in the identification of 18 and 7 constituents, repectively, representing 99.31% and 98.07%, respectively, of the oil. γ-terpinene (71.36%) and o-cymene (17.63%) were the major components of E. camaldulensis. While 1,8-cineole (61.51%) and α-pinene (21.53%) were the major components of C. viminalis. From the results; E. camaldulensis and C. viminalis leaf oils from Malaysia have great potential and can be utilized as cheap sources for the commercial isolation of γ-terpinene and 1,8-cineole.
Journal of Essential Oil Research
Essential Oil-Bearing Plants from Nigeria: Studies on Vernonia perrottettii (Leaf and Stem Bark), Young Leaves from Eucalyptus decaisneana and Immature Leaves of Hyptis suaveolens2009 •
2009 •
Journal of Essential Oil Bearing Plants
In Vitro Cytotoxicity Activitie of Essential Oils of Eucalyptus Torreliana F. v. Muell (Leaves and Fruits)2005 •
Parasitology research
Essential oils and their compounds as Aedes aegypti L. (Diptera: Culicidae) larvicides: review2013 •
Phytotherapy …
Bioassay‐guided Evaluation of Antinociceptive Properties and Chemical Variability of the Essential Oil of Hyptis fruticosa2011 •
The New phytologist
King DK Gleadow RM, Woodrow IE (2006) Regulation of oil accumulation in single glands of Eucalyptus polybractea. New Phytologist. 172,440–4512006 •
Journal of Ethnopharmacology
Composition and antibacterial activity of essential oil of Desf. (Verbenaceae2005 •
Journal of Chromatographic Science
Composition of Eucalyptus camaldulensis Volatiles Using Direct Thermal Desorption Coupled with Comprehensive Two-Dimensional Gas Chromatography--Time-of-Flight-Mass Spectrometry2008 •
Flavour and Fragrance Journal
Composition and antibacterial activity of the essential oil of sixStachys species from Serbia2004 •
2009 •
2006 •
Brazilian Journal of Pharmacognosy
Antiacetylcholinesterase and antioxidant activity of essential oils from six medicinal plants from Burkina Faso2011 •
2014 •
Journal of Essential Oil Research
Terpenoid Composition of the Leaf and Stem Bark Essential Oils of Vernonia migeodii S. Moore (Asteraceae)2009 •
Iranian journal of pharmaceutical research (IJPR)
Chemical Composition of the Essential Oils of Four Cultivated Eucalyptus Species in Iran as Medicinal Plants (E. microtheca, E. spathulata, E. largiflorens and E. torquata)Parasites & vectors
Chemical composition and insecticidal activity of plant essential oils from Benin against Anopheles gambiae (Giles)2013 •
Australian Journal of Botany
A molecular perspective on terpene variation in Australian MyrtaceaeJournal of the …
Composition and radical‐scavenging activity of Thymus glabrescens Willd.(Lamiaceae) essential oil2008 •
Journal of The Serbian Chemical Society
Chemical composition and antimicrobial activity of the essential oils of Gentiana asclepiadea L2010 •
J. Essent. Oil Res
Chemical Studies of leaf Essential Oils of Three Species of Juniperus From Tensift AlHaouz-Marrakech Region (Maroc)2009 •
2010 •
Chemistry of Natural Compounds
Essential Oil Composition of Four Achillea Species from the Balkans and Its Chemotaxonomic Significance2005 •
Pharmaceutical Biology
Chemical Composition of Essential Oils from Leaves and Twigs of Pistacia lentiscus , Pistacia lentiscus var. chia , and Pistacia terebinthus from Turkey2004 •
Flavour and Fragrance Journal
Fractional distillation effect on the chemical composition of Moroccan myrtle (Myrtus communis L.) essential oils2006 •
Chemistry of Natural Compounds
Chemical composition of essential oils from leaves of Rhododendron dauricum and R. aureum2009 •
Journal of Stored Products Research
Seasonal variations in chemical composition and fumigant activity of five Eucalyptus essential oils against three moth pests of stored dates in Tunisia2012 •
Journal of Essential Oil Research
The leaf essential oils of four Vietnamese species of Cinnamomum (Lauraceae)2013 •
Journal of Essential Oil Research
Characterization of Oils from the Fruits, Leaves and Flowers of the Bitter Orange Tree2011 •
Journal of Essential Oil Research
Essential Oils of Plants Used in Home Medicine in North of Argentina2009 •