Extraction of essential oil from discarded tobacco leaves by solvent extraction and steam distillation, and identification of its chemical composition

2012 ◽  
Vol 39 ◽  
pp. 162-169 ◽  
Author(s):  
Xianzhong Zhang ◽  
Hongjian Gao ◽  
Lifen Zhang ◽  
Donghong Liu ◽  
Xingqian Ye
Keyword(s):  
Chemical Composition ◽  
Solvent Extraction ◽  
Essential Oil ◽  
Steam Distillation ◽  
Tobacco Leaves

scholarly journals Chemical composition and content of essential oil from the bud of cultivated Turkish clove (Syzygium aromaticum L.)

BioResources ◽  
2007 ◽  
Vol 2 (2) ◽  
pp. 265-269 ◽  
Author(s):  
M. Hakki Alma ◽  
Murat Ertaş ◽  
Siegfrie Nitz ◽  
Hubert Kollmannsberger
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Mediterranean Region ◽  
Steam Distillation ◽  
Syzygium Aromaticum ◽  
Distillation Method ◽  
Eugenyl Acetate ◽  
Clove Bud Oil ◽  
Oil Company

In this study, clove bud oil, which was cultivated in the Mediterranean region of Turkey, was provided from a private essential oil company in Turkey. Essential oil from clove (Syzygium aromaticum L.) was obtained from steam-distillation method, and its chemical composition was analyzed by GC and GC-MS. The results showed that the essential oils mainly contained about 87.00% eugenol, 8.01% eugenyl acetate and 3.56% β-Caryophyllene. The chemical composition of the Turkish clove bud oil was comparable to those of trees naturally grown in their native regions.

scholarly journals Chemical composition and antifungal activity of oil extracted from leaves turmeric (Curcuma longa)

2021 ◽  
pp. 123-131
Author(s):  
Rini Yanti ◽  
Hermina Nurdiawati ◽  
Puji Wulandari ◽  
Yudi Pranoto ◽  
Muhammad Nur Cahyanto
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Aspergillus Parasiticus ◽  
Curcuma Longa ◽  
Fungal Growth ◽  
Antimicrobial Activities ◽  
Result Show ◽  
High Concentrations ◽  
Fungus Growth

Turmeric rhizomes are commonly used in the culinary, pharmaceutical, herbal medicine, and beverage industries. On the contrary, turmeric leaves are underutilized.  The aims of this study were to extract the essential oil from turmeric leaves, characterize the chemical composition of the oil, and determine its antifungal activities against aflatoxin-producing fungi. Steam distillation was used to extract the essential oil from turmeric leaves. The properties of the oil were identified using GC-MS. Antimicrobial activities against Aspergillus flavus and Aspergillus parasiticus were determined. Spores of the fungi were inoculated into potato dextrose agar plates supplemented with various quantities of turmeric leaves essential oil and incubated at 30°C for 7 days. The oil's primary constituents were α-phelandrene(46.70 %), followed by α-terpinolene (17.39 %), 1,8-cineole (8.78 %), benzene (4.24 %), and 2-β pinene (3.64 %). At low (<1%) concentrations, the oil delayed mycelia formation and at high concentrations it significantly inhibit fungal growth (at 1%) and completely inhibit colony formation (at 2%) Additionally, the result show that turmeric leaves oil can inhibited fungus growth at the lowest concentration (0.25 %) when compared to the control over a seven-day incubation period.

scholarly journals Antimicrobial Activity and Chemical Composition of Essential Oil of Eupatorium Glutinosum (Lam.)

2006 ◽  
Vol 1 (8) ◽  
pp. 1934578X0600100
Author(s):  
Hesham R. El-Seedi
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Antimicrobial Activities ◽  
Plant Residue ◽  
Volatile Fraction ◽  
Positive Bacterium ◽  
Medicinal Uses ◽  
Study Support ◽  
First Time

The essential oil obtained by steam distillation from the leaves and twigs of Eupatorium glutinosum Lam. (Asteraceae) showed antimicrobial activities against a Gram-positive bacterium, three Gram–negative bacteria and three fungi. The results from this study support the vernacular medicinal uses of the plant in folkloric medicine. The chemical composition of the essential oil was analysed by GC and GC-MS, resulting in the identification of 24 constituents accounting for 92.6% of the total mass. The major active component, carvacrol, was isolated using MPLC and characterized by NMR and MS analysis. β-Glucosidase-treatment of the aqueous plant residue yielded a volatile fraction that did not show antimicrobial activitiy, in which the major components were octen-3-ol and (Z)-hex-2-en-1-ol. The essential oil from the species is reported for the first time.

scholarly journals First Report on Yield and Chemical Composition of Essential Oil Extracted from Myrcia eximia DC (Myrtaceae) from the Brazilian Amazon

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 783
Author(s):  
Oberdan Oliveira Ferreira ◽  
Jorddy Neves da Cruz ◽  
Celeste de Jesus Pereira Franco ◽  
Sebastião Gomes Silva ◽  
Wanessa Almeida da Costa ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Brazilian Amazon ◽  
Major Constituent ◽  
Chemical Compositions ◽  
Mass Yield ◽  
New Information ◽  
The City

The essential oil (EO) of plants of the Myrtaceae family has diverse chemical composition and several applications. However, data on the oil yield, its composition, and its complete chemistry are still unavailable for some species belonging to this family, such as Myrcia eximia DC. In this study, the chemical compositions of the EOs of Myrcia eximia were evaluated by using gas chromatography (GC) alone and gas chromatography coupled with mass spectrometry (GC–MS). Samples for both evaluations were collected from the city of Magalhães Barata, State of Pará, Brazil, in 2017 and 2018. For the plant material collected in 2017, EO was obtained by hydrodistillation (HD) only, while, for the material collected in 2018, EO was obtained by hydrodistillation and steam distillation (SD), in order to evaluate the differences in chemical composition and mass yield of the EO. The yields of (E)-caryophyllene were 15.71% and 20.0% for the samples collected by HD in 2017 and 2018, respectively, while the yield was 15.0% for the sample collected by SD in 2018. Hexanal was found to be the major constituent in the EO obtained by HD, with yield of up to 26.09%. The oil yields reached 0.08% by using SD, and 0.01% and 0.36% for the samples collected in 2017 and 2018, respectively, using HD. The results of this study provide new information about the mass yield and chemical composition of Myrcia eximia DC, and they can add value and income to traditional populations, as well as facilitate the preservation of this species.

Chemical Composition of the Essential Oil From Minthostachys acris Schmidt-Leb. Grown in the Peruvian Andes

2019 ◽  
Vol 14 (7) ◽  
pp. 1934578X1985749
Author(s):  
Jorge A. Pino ◽  
María Milagros Dueñas-Mendoza ◽  
Leoncio Solís-Quispe
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Ionization Detector ◽  
Peruvian Andes ◽  
Flame Ionization ◽  
Aerial Parts

The chemical composition of the essential oil from aerial parts of Minthostachys acris Schmidt-Leb. grown in Cuzco was studied. A total of 59 volatile compounds were identified by gas-chromatography-flame ionization detector and gas chromatography-mass spectrometry in the essential oil obtained by steam distillation, of which the most prominent were pulegone (54.4%), cis-menthone (11.0%), and thymol (6.3%).

Production of Essention Oil from Tobacco Leaves for Insect Repellents

2017 ◽  
Vol 866 ◽  
pp. 53-56
Author(s):  
Varinthorn Boonyaroj ◽  
Amara Amornkaew
Keyword(s):  
Gas Chromatography ◽  
Solvent Extraction ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectrometer ◽  
Agricultural Activities ◽  
Tobacco Leaves ◽  
Insect Repellents ◽  
Pass Through ◽  
Odorous Substances

The production of essential oil from tobacco leaves for insect repellents using a combination of solvent extraction was investigated. Tobacco essential oil is generally different from other essential oils, which usually consist of several special aroma compounds. The tobacco essential oil and solvent extracts were analyzed by gas chromatography with a mass spectrometer (GC–MS). Tobacco essential oils are concentrated odorous substances. Nicotine is present as a major substance and found only trace amounts of the essential oils. Nicotine is an insecticide that affects to insects. This research showed that a development of products forms tobacco leaves and environmentally. This product evaporated pass through a packaging made from luffa gourd. The luffa gourd is a natural packaging can be easily degradation in the environment. Moreover, this product also helped to reduce the hazardous chemicals or pesticides usage in agricultural activities and not residues in the environment for long times.

Comparison of Different Methods for Extraction from Lavender: Yield and Chemical Composition

2016 ◽  
Vol 688 ◽  
pp. 31-37 ◽  
Author(s):  
Michal Jablonský ◽  
Helena Ramajová ◽  
Aleš Ház ◽  
Alexandra Sládková ◽  
Andrea Škulcová ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Solvent Extraction ◽  
Steam Distillation ◽  
Soxhlet Extraction ◽  
Protic Solvent ◽  
Caryophyllene Oxide ◽  
Environmentally Sustainable ◽  
Linalool Oxide ◽  
Isolation Methods ◽  
Main Components

A comparative study of accelerated solvent extraction (ASE) with two conventional volatile isolation methods including traditional steam distillation and Soxhlet extraction was performed on lavender. ASE was carried out by butanol (polar protic solvent) or dichloromethane (nonpolar solvent) and the temperature was 120°C. Separation and identification of the components was carried out by GC/MS. The main components of the analysed samples were Linalool (14.79%), α-Terpineol (4.42%), Linalool oxide (furanoid) (2.92%), cis-linalyl oxide (2.8%), α-Bisabolol (1.86%) and Octacosane (1.56%) for steam distillation; for ASE (dichlormethane): β-Terpineol (2.06%), Linalyl anthranilate (1.82%), Largeracetal (1.82%), Eucalyptol (1.74%), Linalool (1.73%), Coumarine (1.28%) and Caryophylene oxide (1.08%); for ASE (butanol): Lageracetal (8.29%), Octacosane (1.75%), Eucalyptol (1.05%) and Caryophyllene oxide (1.02%) and for Soxhlet (butanol): Largeracetal (11.42%), Linalool (3.36%), Coumarine (0.83%) and Eucalyptol (0.74%). The study has shown that ASE is a fast and environmentally sustainable technique, using butanol and dichloromethane as solvent for the extraction of extractive compounds from lavender.

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