scholarly journals Bark and Leaf Essential Oil of Umbellularia californica, California Bay Laurel, from Oregon

2007 ◽  
Vol 2 (7) ◽  
pp. 1934578X0700200
Author(s):  
Rick G. Kelsey ◽  
Ovid McCuistion ◽  
Joe Karchesy
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
West Central ◽  
Umbellularia Californica ◽  
Leaf Oil ◽  
Leaf Essential Oil

The bark and leaf essential oil of Umbellularia californica (Hook. & Arn.) Nutt. from west central Oregon, USA, was isolated by steam distillation and the chemical composition analyzed by GC-FID and GC-MS. The three major components in bark oil were 1,8-cineole (36.0%), α-santalene (9.3), and α-terpineol (6.9%), while those in leaf oil were umbellulone (41.0%), 1,8-cineole (22.0%) and sabinene (10.2%).

scholarly journals Komposisi kimia minyak atsiri daun cengkeh dari proses penyulingan uap

2018 ◽  
Vol 10 (1) ◽  
pp. 37 ◽  
Author(s):  
J Jayanudin
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Food Industry ◽  
Steam Distillation ◽  
Composition Analysis ◽  
Distillation Process ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Anhydrous Na2so4 ◽  
Chemical Composition Analysis

The chemical composition of clove leaf essential oil obtained from steam distillation process Essential oils are needed in various industries such as industrial perfumes, cosmetics, pharmaceuticals, food industry, and beverages. This study aims to determine the chemical composition of clove leaf essential oil from steam distillation process using GCMS. Dry clove leaves weighing 1.5 kg are included in the kettle flute and sealed properly. Steam from the boiler flows into the kettle with the pressure of 0.5 barG, 1 barG and 1.5 barG for 5, 6 and 7 hours. Mixture oil and water out of the condenser are accommodated and let stand for 24 hours to separate water and oil. Clove leaf oil was purified with 10% bentonite by weight of oil at a temperature of 50oC with stirring for 1 hour. Clove leaf oil that has separated from bentonite added anhydrous Na2SO4 and let stand for 15 minutes and then separate the water and Na2SO4 in oil. Samples with % yield of the largest in its chemical composition analysis using GCMS. Based on the results obtained the largest yield is 1.84% with content of eugenol is 65.03% and 20.94% trans-caryophyllene. Keywords : Clove leaf, Eugenol, Essential Oil, Steam distillationAbstrakMinyak atsiri sangat dibutuhkan dalam berbagai industri seperti industri parfum, kosmetik, farmasi, industri makanan, dan minuman. Penelitian ini bertujuan untuk mengetahui komposisi kimia minyak atsiri daun cengkeh dari proses penyulingan uap menggunakan analisa GCMS. Daun cengkeh kering seberat 1,5 kg yang sudah bersih dari kotoran dimasukkan dalam ketel suling dan ditutup dengan rapat. Steam dari boiler dialirkan ke ketel suling dengan tekanan 0,5 barG, 1 barG dan 1,5 barG selama 5, 6 dan 7 jam. Campuran minyak dan air yang keluar dari kondenser ditampung dan diamkan selama 24 jam untuk memisahkan air dan minyak. Minyak daun cengkeh dimurnikan dengan bentonit 10% dari berat minyak pada suhu 50oC sambil diaduk selama 1 jam. Minyak daun cengkeh yang telah terpisah dari bentonit ditambahkan Na2SO4 anhidrat dan diamkan selama 15 menit kemudian pisahkan air dan Na2SO4 dalam minyak. Sampel dengan % rendemen terbesar di analisa komposisi kimianya menggunakan GCMS. Berdasarkan hasil penelitian didapat rendemen terbesar adalah 1,84% dengan kadar yaitu eugenol 65,03% dan trans-caryophyllene 20.94%.Kata kunci : Daun cengkeh, Eugenol, Minyak atsiri, Penyulingan uap

scholarly journals Leaf Essential Oil of Manekia naranjoana (Piperaceae) from Costa Rica and its Cytotoxic Activity

2011 ◽  
Vol 6 (1) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Carlos Chaverri ◽  
Cecilia Díaz ◽  
José F. Cicció
Keyword(s):  
Costa Rica ◽  
Chemical Composition ◽  
Essential Oil ◽  
Tumor Cell ◽  
Cytotoxic Activity ◽  
Tumor Cell Lines ◽  
Capillary Gc ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Low Toxicity

The chemical composition of the leaf oil of Manekia naranjoana (C. DC.) Callejas (Piperaceae) from Costa Rica was analyzed by capillary GC/FID and GC/MS. Fifty-five compounds were identified. Major compounds from the leaf oil were β-pinene (30.6%), α-pinene (18.8%), limonene (13.7%), and β-caryophyllene (6.1%). The oil presented very low toxicity to tumor and non-tumor cell lines, even though it contains components, such as α- and β-pinene, limonene and others, which have been shown to be cytotoxic. This is the first report of the chemical composition of the essential oil obtained from this species.

scholarly journals Composition and in vitro Anticancer Activities of the Leaf Essential Oil of Neolitsea variabillima from Taiwan

2013 ◽  
Vol 8 (4) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Yu-Chang Su ◽  
Kuan-Ping Hsu ◽  
Eugene I-Chen Wang ◽  
Chen-Lung Ho
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Cytotoxic Activity ◽  
Cancer Cells ◽  
Anticancer Activities ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Main Components ◽  
Type Apparatus

This study investigated the chemical composition and in vitro anticancer activities of the essential oil isolated from the leaf of Neolitsea variabillima. The essential oil was isolated using hydrodistillation in a Clevenger-type apparatus, and characterized by GC-FID and GC-MS. Sixty-seven compounds were identified, representing 100% of the oil. The main components identified were trans-β-ocimene (13.4%), α-cadinol (10.5%), terpinen-4-ol (9.3%), τ-cadinol (9.2%), β-caryophyllene (8.8%), and sabinene (6.7%). The anticancer activities of oil were evaluated. The results showed that the oil exhibited cytotoxic activity against human oral, liver, lung, colon, melanoma, and leukemic cancer cells. The presence of β-caryophyllene, τ-cadinol, and α-cadinol significantly contributed to the anticancer activities of N. variabillima leaf oil.

scholarly journals Caryophyllene-Rich Essential Oil of Didymocarpus Tomentosa: Chemical Composition and Cytotoxic Activity

2012 ◽  
Vol 7 (11) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Prameela Javarayi Gowda ◽  
Hanumanthaiah Ramakrishnaiah ◽  
Venkatarangaiah Krishna ◽  
Sivakrishna Narra ◽  
Nataraj Jagannath
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Tumor Cell ◽  
Cytotoxic Activity ◽  
Cell Line ◽  
Mtt Assay ◽  
Tumor Cell Line ◽  
Caryophyllene Oxide ◽  
Leaf Oil ◽  
Leaf Essential Oil

The essential oil from the leaves of Didymocarpus tomentosa was extracted by hydrodistillation and analyzed by GC/FID and GC/MS. Twenty five constituents amounting to 81.6% of the oil were identified. The leaf oil contained 78.7% sesquiterpenes and 2.9% monoterpenes. The leaf essential oil of D. tomentosa is a unique caryophyllene-rich natural source containing β-caryophyllene, caryophyllene oxide, α-humulene and humulene oxide. The cytotoxic activity of the oil was determined by the BSLT using shrimp larva and the MTT assay using HeLa tumor cell line. The oil showed significant cytotoxic activity with LC50 and IC50 values of 12.26 and 11.4 μg/mL, respectively. This is the first report on the chemical composition and cytotoxic activity of the essential oil of D. tomentosa.

scholarly journals Chemical Composition and Cytotoxic Activity of the Leaf Essential Oil of Ocotea tonduzii from Monteverde, Costa Rica

2007 ◽  
Vol 2 (7) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Anita Bansal ◽  
Debra M. Moriarity ◽  
Sayaka Takaku ◽  
William N. Setzer
Keyword(s):  
Costa Rica ◽  
Chemical Composition ◽  
Essential Oil ◽  
Cytotoxic Activities ◽  
Germacrene D ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Oil Components ◽  
Mcf 7

The leaf essential oil of Ocotea tonduzii from Monteverde, Costa Rica has been obtained by hydrodistillation and analyzed by GC-MS. The principal constituents of O. tonduzii leaf oil were the monoterpenes α-pinene (41.4%) and pinene (25.1%) and the sesquiterpenes α-humulene (6.9%), β-caryophyllene (5.8%), and germacrene D (3.8%). O. tonduzii leaf oil was notably cytotoxic on MCF-7, MDA-MB-231, MDA-MB-468, and UACC-257 cells in vitro. The major essential oil components showed cytotoxic activities comparable to doxorubicin ( LC50, 20–70 μg/mL).

scholarly journals Chemical Composition of the Leaf Essential Oil of Casimiroa Edulis La Llave & Lex. (Rutaceae) from Monteverde, Costa Rica

2009 ◽  
Vol 4 (3) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Sarah L. Miller ◽  
William A. Haber ◽  
William N. Setzer
Keyword(s):  
Costa Rica ◽  
Chemical Composition ◽  
Essential Oil ◽  
Traditional Use ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Casimiroa Edulis ◽  
Leaf Oil ◽  
Leaf Essential Oil

The leaf essential oil of Casimiroa edulis (Rutaceae), collected from Monteverde, Costa Rica, has been obtained by hydrodistillation and analyzed by GC-MS. The leaf oil was dominated by sesquiterpene hydrocarbons, predominately germacrene D (16-22%) and ( E)-caryophyllene (16-17%), consistent with the traditional use of this plant as a sedative, sleep inducer and hypotensive.

scholarly journals Composition, in vitro Cytotoxicity, and Anti-mildew Activities of the Leaf Essential Oil of Machilus thunbergii from Taiwan

2015 ◽  
Vol 10 (11) ◽  
pp. 1934578X1501001
Author(s):  
Yu-Chang Su ◽  
Kuan-Ping Hsu ◽  
Shu-Ching Li ◽  
Chen-Lung Ho
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
In Vitro Cytotoxicity ◽  
Active Source ◽  
Leaf Oil ◽  
Machilus Thunbergii ◽  
Leaf Essential Oil ◽  
Main Components ◽  
Type Apparatus

This study investigated the chemical composition, in-vitro cytotoxicity, and anti-mildew fungal activities of the essential oil isolated from the leaf of Machilus thunbergii from Taiwan. The essential oil was isolated using hydrodistillation in a Clevenger-type apparatus, and characterized by GC–FID and GC–MS. Eighty-three compounds were identified, representing 99.8% of the oil. The main components identified were n-decanal (26.6%), β-caryophyllene (15.8%), α-humulene (10.8%), and β-eudesmol (10.5%). The oil exhibited cytotoxic activity against human oral, liver, lung, colon, melanoma, and leukemic cancer cells. The active source compounds were β-caryophyllene, α-humulene, and β-eudesmol. The anti-mildew activity of the leaf oil was also evaluated. Results showed that the leaf oil had excellent anti-mildew activity. For the anti-mildew activity of the leaf oil, the active source compound was determined to be β-eudesmol.

scholarly journals Essential oil Composition of Dendropanax Gonatopodus from Monteverde, Costa Rica. An ab Initio Examination of Aromadendrane Sesquiterpenoids

2008 ◽  
Vol 3 (9) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
William N. Setzer
Keyword(s):  
Costa Rica ◽  
Chemical Composition ◽  
Essential Oil ◽  
Ab Initio ◽  
Density Functional ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Hartree Fock ◽  
Leaf Oil ◽  
Leaf Essential Oil

The leaf essential oil of Dendropanax gonatopodus from Monteverde, Costa Rica, has been obtained by hydrodistillation and the chemical composition determined by GC-MS. The major components in the leaf oil were ( E)-2-hexenal (16.9%), terpinolene (14.8%), δ-cadinene (13.5%), ( E)-caryophyllene (9.9%), and α-copaene (7.3%). Minor amounts of the aromadendrane sesquiterpenoids aromadendrene (0.3%), alloaromadendrene (0.3%), spathulenol (0.6%) and globulol (0.6%) were also detected. An ab initio investigation of the aromadendrane sesquiterpenoids has been carried out using both density functional (B3LYP/6-31G*) and post Hartree-Fock (MP2/6-31G**) methods. The calculated relative energies of the aromadendranes belie their relative concentrations generally observed in essential oil compositions.

scholarly journals Comparative study of two Eucalyptus species from Algeria: chemical composition, toxicity and acaricidal effect on Varroa destructor

2020 ◽  
Vol 33 (3) ◽  
pp. 144-148
Author(s):  
Ghania Atmani-Merabet ◽  
Sihem Fellah ◽  
Abdelmalik Belkhiri
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Varroa Destructor ◽  
Steam Distillation ◽  
Eucalyptus Species ◽  
Brine Shrimp Lethality Assay ◽  
Leaf Essential Oil ◽  
Feasible Alternative ◽  
Parasitic Mite ◽  
The One

AbstractVarroa destructor is an external parasitic mite that is a serious pest of honeybees and has caused severe losses of colonies worldwide. One of the feasible alternative treatments being used for their control is the application of essential oils, which are generally inexpensive and most pose few health risks. The investigation was designed to determine the chemical composition, toxicity and acaricidal effects of Eucalyptus amygdalina leaf essential oil (EaEO) grown in Algeria and to compare its activity on Varroa destructor with that of Eucalyptus globulus from the same region. Fresh leaves of E. amygdalina (Ea) by steam distillation yielded 0.77% (v/w), and investigation of the oil on GC/MS resulted in the identification of 35 compounds, with 1.8-cineole (35.78%) as most abundant constituent. Other notable compounds include spathulenol (12.58%), camphene (7.73%), α-pinene (4.38%), valencene (2.64%), while 2-carene and ledol (1.45%) were also among the constituents identified. The acaricidal features of the essential oil was evaluated using bee hives infected by Varroa destructor, and a significant effect of oil application was observed (p < 0.05). Cytotoxic effect was assayed using the brine shrimp lethality assay, Probit’s analysis of the result revealed an LC50 value of 116.06 μg/mL. Essential oil of E. amygdalina (EaEO) has potential acaricidal effect on Varroa destructor, but this effect is less important than the one recorded by E. globulus. Further studies are needed to determine the active component responsible for this effect.

Sign in / Sign up

Export Citation Format

Share Document