Chemical Composition of the Essential Oil from Cultivated Eucalyptus Camaldulensis. Dehnh in Sistan and Baluchestan = التركيب الكيميائي للزيوت الضرورية من نبات الكينا Eucalyptus Camaldulensis. Dehnh المزروع في منطقة سيستان وبلوشستان

2017 ◽  
Vol 13 (1) ◽  
pp. 117-123
Author(s):  
A. R. Sardashti
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Eucalyptus Camaldulensis ◽  
Eucalyptus Camaldulensis Dehnh ◽  
Sistan And Baluchestan

GC/MS Profile and In-Vitro α-Glucosidase Inhibitory Activity of Essential Oil of Eucalyptus camaldulensis Dehnh Collected from (Erbil) Iraq

2020 ◽  
Vol 16 ◽  
Author(s):  
Javed Ahamad ◽  
Subasini Uthirapathy
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Eucalyptus Camaldulensis ◽  
In Vitro Models ◽  
Antidiabetic Activity ◽  
Standard Drug ◽  
Ic50 Value ◽  
Gas Chromatography Mass Spectroscopy ◽  
Eucalyptus Camaldulensis Dehnh

Background: Eucalyptus camaldulensis Dehnh abundantly found in Erbil, Iraq and commonly used as antispasmodic and antipyretic remedy for treating respiratory tract diseases. The present study aimed to evaluate the effectiveness of E. camaldulensis in achieving glucose homeostasis through the inhibition of α-glucosidase enzyme using in-vitro model and also determine the chemical composition of essential oil by gas chromatography mass spectroscopy (GC/MS). Methods: The chemical composition of E. camaldulensis essential oil by was determined by GC/MS and its antidiabetic activity was assessed through inhibition of α-glucosidase enzyme in in-vitro models. Results: The essential oil yielded 40chemical constituents amounting to 98.55%. The major constituents of essential oil of E. camaldulensis leaf were 1,8-cineole (28.4%), isocaryophyllene oxide (8.4%), β-ocimene (7.9%), α-farnesene (7.9%), globulol (7.3%), terpinen-4-ol (7.6%), isophytol (3.6%), viridiflorol (3.2%), p-cymen-3-ol (3.1%) and α-bisabolol (1.2%). The essential oil of E. camaldulensis showed concentration dependent inhibition of α-glucosidase enzyme and the inhibition range from 75.38±2.09 to 6.08±1.89% for concentration 100 to 3.125 µg/mL. The α-glucosidase inhibition of E. camaldulensis (IC50 value 16.7±2.61 µg/mL) was found almost comparable with standard drug acarbose (IC50 value 12.04±3.17 µg/mL). Conclusion: The result of this study concluded that E. camaldulensis essential oil having 1,8-cineole, isocaryophyllene oxide and β-ocimene as major constituents, the study findings also confirm the traditional claim of its use in the treatment of diabetes mellitus.

scholarly journals Variation of essential oil composition of Eucalyptus camaldulensis (myrtaceae) from the Montengero coastline

2010 ◽  
pp. 151-158 ◽  
Author(s):  
Slavenko Grbovic ◽  
Dejan Orcic ◽  
Maria Couladis ◽  
Emilija Jovin ◽  
Dusan Bugarin ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Eucalyptus Camaldulensis ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Oil Composition ◽  
Oxygenated Monoterpenes ◽  
Sesquiterpene Alcohol ◽  
Major Class ◽  
Leaf Essential Oil

In the current study the essential oil obtained from the leaves of Eucalyptus camaldulensis plants collected from five localities of the Montenegro coastline was analyzed. The oil yield varied from 0.63 % (Kotor) up to 1.59% (Tivat). The chemical composition of the leaf essential oil was analyzed using GC-MS technique. Monoterpene hydrocarbons were a major class of compounds. Among them, dominant compounds were p-cymene (17.38-28.60%), ?-phellandrene (12.35-14.47%) and ?-pinene (0.94-11.48%). The second largest group was oxygenated monoterpenes with cryptone (4.97-7.25) and terpinene-4-ol (2.75-4.21%) as predominant. Besides high content of sesquiterpene alcohol spathulenol (7.83-14.15%) was found. According to the results obtained E. camaldulensis from Montenegro can be classified in the chemotype with low 1,8-cineole and high p-cymene and cryptone ratio.

Distillation of essential oil and simulation of electromagnetic power distribution in a microwave oven

2012 ◽  
Vol 4 (5) ◽  
pp. 545-551
Author(s):  
Mahit Gunes ◽  
Mehmet Hakki Alma
Keyword(s):  
Essential Oil ◽  
Microwave Irradiation ◽  
Power Distribution ◽  
Eucalyptus Camaldulensis ◽  
Microwave Reactor ◽  
Electromagnetic Power ◽  
Irradiation Power ◽  
Eucalyptus Camaldulensis Dehnh ◽  
Power Microwave

In the present study, the essential oil from the leaves of River Red Gum (Eucalyptus camaldulensis Dehnh) was distilled by microwave applied in situ hydrodistillation (MWHD) and the properties obtained were compared with hydrodistillation (HD) techniques. The chemical composition of essential oil obtained by the microwave method was analyzed by gas chromatography (GC) and GC–mass spectrometry (MS). The results showed that the essential oil from E. camaldulensis could successfully be distilled by using microwave irradiation power. Microwave power has been supplied from a cavity having a multimode microwave reactor 2455 MHz with a maximum power of 1000 W. Electromagnetic power distribution has been analyzed inside the cavity. The yield of essential oil increased with increasing microwave irradiation power. It was also found that the content of main compounds clearly varied according to methods applied. However, the yield of essential oil determined by MWHD was slightly lower than that of conventional HD method at conditions studied.

scholarly journals Chemical Variability, Antifungal and Antioxidant Activity of Eucalyptus camaldulensis Essential Oil from Sardinia

2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Andrea Barra ◽  
Valentina Coroneo ◽  
Sandro Dessi ◽  
Paolo Cabras ◽  
Alberto Angioni
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Ion Trap ◽  
Eucalyptus Camaldulensis ◽  
Phytopathogenic Fungi ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Chemical Variability ◽  
Eucalyptus Camaldulensis Dehnh

Essential oil (EO) from aerial parts of Eucalyptus camaldulensis Dehnh., growing wild in different localities of Sardinia (Italy), was extracted by steam distillation and analyzed by gas chromatography (GC) FID and GC-ion trap mass spectrometry (ITMS). The yields of EO (v/dry wt) ranged between 0.2-0.5%. Samples were harvested between April and December to study the seasonal chemical variability of the EO. The chemical composition varied depending on the different origins and showed strong fluctuation during the vegetative stage. Thirty-seven compounds, accounting for at least 97.7% of the total EOs were identified, the major components being p-cymene (27.8-42.7%), 1,8-cineole (4.1-39.5%), β-phellandrene (3.9-23.8%), spathulenol (2.1-15.5%) and cryptone (3.2-10.2%). The oils possessed moderate amounts (1.4-4.7%) of two uncommon aldehydes, cuminal and phellandral. The essential oils were screened for their antifungal activities against common phytopathogenic fungi using the paper disk diffusion method and they showed activity at low doses against the fungi tested. The antioxidant activity, assessed by DPPH-test and expressed as Trolox equivalent antioxidant capacity, showed values ranging between 0.5 and 5.8 mmol/L.

The Performance of Two Chewing Insects on Water-Stressed Food Plants in Relation to Changes in Their Chemical Composition.

1982 ◽  
Vol 30 (2) ◽  
pp. 347 ◽  
Author(s):  
PW Miles ◽  
D Aspinall ◽  
AT Correll
Keyword(s):  
Chemical Composition ◽  
Phenolic Compounds ◽  
Host Plants ◽  
Pieris Rapae ◽  
Phenolic Content ◽  
Eucalyptus Camaldulensis ◽  
Food Plants ◽  
Nitrogenous Compounds ◽  
Rate Of Development ◽  
Eucalyptus Camaldulensis Dehnh

The rate of development of caterpillars of Pieris rapae L. on rape leaves was not affected by whether their host plants were water-stressed or not, nor were weights of the pupae affected. Survival was high on unstressed plants and was not enhanced on stressed plants. Similarly, the rate of development of larvae of Paropsis atomaria Oliver and the weight of the prepupae were unaffected by stress in young shoots of red gum, Eucalyptus camaldulensis Dehnh., on which the larvae were feeding. In both species of plant, the degree of stress applied significantly increased the total nitrogen and amino content of the leaves. In the gum leaves, phenolic content varied inversely with nitrogen content: In well watered plants at temperatures below 25�C. phenolic compounds increased and nitrogenous compounds decreased in attacked leaves, compared with leaves on unattacked shoots of the same plant. No such differences were apparent when the plants were water-stressed, however, nor in watered plants at temperatures above 30�C.

scholarly journals Investigation of Pesticidal Activities of Essential Oil of Eucalyptus camaldulensis Dehnh

2018 ◽  
Vol 12 (6) ◽  
pp. 557-568 ◽  
Author(s):  
Tamer Üstüner ◽  
Şaban Kordali ◽  
Ayşe Usanmaz Bozhüyük ◽  
Memiş Kesdek
Keyword(s):  
Essential Oil ◽  
Eucalyptus Camaldulensis ◽  
Eucalyptus Camaldulensis Dehnh

The Chemical Composition and Antioxidant Activity of Essential Oil of Pakistani Eucalyptus camaldulensis Leaves

2009 ◽  
Vol 12 (3) ◽  
pp. 262-272 ◽  
Author(s):  
Ahmed El-Ghorab ◽  
Khaled Farouk El-Massry ◽  
Faqir Mmuhammad Anjum ◽  
Muhamad Khurram Shahwarb ◽  
Takayuki Shibamoto
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Eucalyptus Camaldulensis
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