Effect of Santolina pectinata (Lag.) Essential Oil to protect against the corrosion of Mild steel in 1.0 M HCl: Experimental and quantum chemical studies

The essential oil of Santolina pectinata aerial parts (SP oil) was extracted by hydrodistillation and analyzed by Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry (GC/MS). 34 components were identified, accounting 59.4% of the total oil, which (Z)-heptadeca-10,16-dien-7-one (ZHD) was the major component with 28 % of the oil. The protective effect of this oil on the corrosion of mild steel (MS) in 1M HCl solution was tested by the measurements of Weight loss (WL), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS). From WL measurements, the inhibiting effect was raised with the increasing of both concentration inhibitor and temperature. PDP curves led to a mixed-type inhibitor. The charge transfer process mainly controls the results of EIS measurements. The SP oil adsorption not only was discovered to obey Langmuir isotherm but showed a chemical interaction as well. The computational methods such as density functional theory (DFT), Monte Carlo (MC) and radial distribution function (RDF) simulations were also performed to analyze the possible contribution of (Z)-heptadeca-10,16-dien-7-one (ZHD) to the corrosion prevention effect of global oil.

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Ducrosia ismaelis Asch. essential oil: chemical composition profile and anticancer, antimicrobial and antioxidant potential assessment

Open Chemistry ◽

10.1515/chem-2020-0019 ◽

2020 ◽

Vol 18 (1) ◽

pp. 175-184 ◽

Cited By ~ 1

Author(s):

Ramzi A. Mothana ◽

Fahd A. Nasr ◽

Jamal M. Khaled ◽

Omar M. Noman ◽

Nael Abutaha ◽

...

Keyword(s):

Gas Chromatography ◽

Essential Oil ◽

Antioxidant Activities ◽

Radical Scavenging ◽

Gas Chromatography Mass Spectrometry ◽

Moderate Activity ◽

Antioxidant Agent ◽

Total Oil ◽

Β Carotene ◽

Mcf 7

AbstractThe essential oil of Ducrosia ismaelis Asch. (Apiaceae) that grows wild in Saudi Arabia was investigated utilizing gas chromatography (GC), and gas chromatography-mass spectrometry. Fifty constituents were characterized, representing 96.1% of the total oil. The D. ismaelis essential oil (DIEO) was distinguished by a high composition of oxygenated monoterpenes (51.6%). Decanal (40.6%), α-pinene (15.1%) and dodecanal (13.7%) were the fundamental components. Additionally, DIEO was evaluated for its cytotoxic, antibacterial, antifungal and antioxidant activities. DIEO revealed a great cytotoxic effectiveness against the tested cancer cell lines with IC50 values between 66.2 and 137.3 μg/mL particularly against MCF-7 cancer cells. Furthermore, the induction of apoptosis against MCF-7 cells has been asserted using staining assay (annexin VFITC and/or propidium iodide (PI) dyes) and flow cytometry technique. The DIEO possessed a strong antimicrobial activity against Gram-positive bacterial and fungal strains with MIC-values between 0.07 and 0.31 mg/ml. The values of MBC or MFC were almost once higher than those of MIC’s. Moreover, the β-carotene-bleaching and DPPH free radical-scavenging tests showed that DIEO had a moderate activity (68%) as an antioxidant agent in decolouring of the β-carotene at 1.0 mg/mL and a moderate radical scavenging for DPPH (66 and 72%) at 0.50 and 1.0 mg/mL.

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Chemical Composition of the Essential Oil of Croton bonplandianus from India

Natural Product Communications ◽

10.1177/1934578x1400900234 ◽

2014 ◽

Vol 9 (2) ◽

pp. 1934578X1400900

Author(s):

Rajesh K. Joshi

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Chemical Composition ◽

Essential Oil ◽

Gas Chromatography Mass Spectrometry ◽

Caryophyllene Oxide ◽

Aerial Parts ◽

Sesquiterpene Hydrocarbons ◽

Germacrene D ◽

Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

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Chemical investigation of the essential oil of Laggera crispata (Vahl) Hepper & Wood from India

Journal of the Serbian Chemical Society ◽

10.2298/jsc100801048v ◽

2011 ◽

Vol 76 (4) ◽

pp. 523-528 ◽

Cited By ~ 4

Author(s):

Ram Verma ◽

Rajendra Padalia ◽

Chandan Chanotiya ◽

Amit Chauhan ◽

Anju Yadav

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Chemical Investigation ◽

Gas Chromatography Mass Spectrometry ◽

Western Himalayas ◽

Caryophyllene Oxide ◽

Oil Composition ◽

Aerial Parts ◽

Total Oil

Hydrodistilled essential oil of the aerial parts of Laggera crispata (Vahl) Hepper & Wood, collected from the Kumaon region of the western Himalayas was analysed by gas chromatography and gas chromatography-Mass Spectrometry. Eighty constituents, accounting for 83.9 % of the total oil composition, were identified. The oil was mainly dominated by sesquiterpenoids (45.3 %) and benzenoid compounds (33.9 %). Among them, 2,5-dimethoxy-p-cymene (32.2 %), 10-epi-?-eudesmol (14.7 %), ?-caryophyllene (6.9 %), and caryophyllene oxide (5.4 %) were major components of the oil.

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Chemical Composition of the Essential Oil of Baccharoides lilacina from India

Natural Product Communications ◽

10.1177/1934578x1300800331 ◽

2013 ◽

Vol 8 (3) ◽

pp. 1934578X1300800

Author(s):

Rajesh K. Joshi

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Essential Oil Composition ◽

Gas Chromatography Mass Spectrometry ◽

Caryophyllene Oxide ◽

Oil Composition ◽

Aerial Parts ◽

Sesquiterpene Hydrocarbons ◽

Total Oil

The essential oil composition from the aerial parts of Baccharoides lilacina (Dalzell & A. Gibson) M. R. Almeida was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 41 compounds have been identified, representing 97.4% of the total oil. The main constituents were identified as β-caryophyllene (27.7%), epi-α-cadinol (25.1%), caryophyllene oxide (9.9%), α-muurolol (7.6%), α-cadinene (6.1%) and α-cadinol 4.5%). The oil was found to be rich in oxygenated sesquiterpenes (47.1%) and sesquiterpene hydrocarbons (46.2%).

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The Repellence of Aristolochia aff. orbicularis Roots against the Corn Borer Sitophilus zeamais

Zeitschrift für Naturforschung C ◽

10.1515/znc-2001-7-816 ◽

2001 ◽

Vol 56 (7-8) ◽

pp. 575-580 ◽

Cited By ~ 3

Author(s):

Joseph Rauscher ◽

Rosa M. Guillén ◽

Martha Albores-Velasco ◽

Gilberto González ◽

Otto Vostrowsky ◽

...

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Sitophilus Zeamais ◽

Gas Chromatography Mass Spectrometry ◽

Spectroscopic Methods ◽

Repellent Effect ◽

Corn Borer ◽

Chromatography Mass Spectrometry ◽

Total Oil

The repellence of Aristolochia aff. orbicularis root, a native of Xochipala, Guerrero, Mexico, to the corn borer Sitophilus zeamais (Coleoptera) was investigated. The essential oil was isolated from the aromatic root and its repellent effect was assessed. About 40 components of the oil were identified using gas chromatography-mass spectrometry and other spectroscopic methods. The repellence of the roots, the oil and the chromatography fractions were also evaluated. Some fractions had a higher repellence than the total oil

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Chemical Composition and Lipoxygenase Inhibitory Activity of the Essential Oil of Alstonia Angustiloba

Chemistry Journal of Moldova ◽

10.19261/cjm.2021.848 ◽

2021 ◽

Author(s):

Wan Mohd Nuzul Hakimi Wan Salleh ◽

Muhammad Helmi Nadri ◽

Shamsul Khamis

Keyword(s):

Gas Chromatography ◽

Essential Oil ◽

Inhibitory Activity ◽

Mass Spectrometry Analysis ◽

Gas Chromatography Mass Spectrometry ◽

Chemical Components ◽

Moderate Activity ◽

Spectrometry Analysis ◽

Ic50 Value ◽

Total Oil

This study was aimed to investigate the chemica l compositions and lipoxygenase inhibitory activity of the essential oil from Alstonia angustiloba growing in Malaysia. The essential oils were obtained by hydrodistillation and fully characterized by gas chromatography and gas chromatography-mass spectrometry. Analysis of the A. angustiloba essential oil resulted in the identification of twenty-five chemical components, attributed 90.8% of the total oil. The most abundant components of A. angustiloba oil were linalool (21.2%), 1,8-cineole (16.8%), α-terpineol (9.5%), terpinene-4-ol (8.5%), β-caryophyllene (6.2%), and caryophyllene oxide (5.2%). The essential oil displayed moderate activity towards lipoxygenase activity with IC50 value of 45.8 μg/mL.

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The Inhibition Effect of Aerial Part of Daucus carota L Essential Oil on the Corrosion Performance of Mild Steel in HCl Medium

Biointerface Research in Applied Chemistry ◽

10.33263/briac125.64876503 ◽

2021 ◽

Vol 12 (5) ◽

pp. 6487-6503

Keyword(s):

Essential Oil ◽

Mild Steel ◽

Daucus Carota ◽

Aerial Part ◽

Electrochemical Impedance ◽

Inhibitory Effect ◽

High Electron ◽

Protective Film ◽

Daucus Carota L ◽

Eis Measurements

The aim of the present work is to investigate the inhibitory effect of the aerial part of Daucus carota L essential oil (EO) on mild steel in a 1.0M HCl solution. The electrochemical study is performed using potentiodynamic polarization (PDP) curves, and electrochemical impedance spectroscopy (EIS) measurements in the presence of various concentrations of the examined Daucus carota L essential oil (EO). PDP results show that the studied EO behaved as a mixed-type inhibitor. EIS measurements indicated that the EO could inhibit the corrosion of mild steel by the formation of a protective film on the surface of mild steel. The experimental results showed an efficiency of 96.5% for a concentration of 2 g/l. In addition, The DFT results proved that the major components, especially -pinene (23.5%), -Bisabolene (3.96%), and Pseudo limonene (7.20%) having a high electron-accepting ability and interact actively with the iron surface, which may be responsible for the inhibition ability of the investigated EO. Furthermore, the computational complies with the experimental data.

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Essential Oil Composition of Xanthium italicum From Serbia

Natural Product Communications ◽

10.1177/1934578x19849968 ◽

2019 ◽

Vol 14 (6) ◽

pp. 1934578X1984996

Author(s):

Violeta D. Mitić ◽

Marija D. Ilić ◽

Olga Jovanović ◽

Vesna P. Stankov-Jovanović ◽

Marija S. Marković ◽

...

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Essential Oil Composition ◽

Methyl Eugenol ◽

Gas Chromatography Mass Spectrometry ◽

Oil Composition ◽

Chromatography Mass Spectrometry ◽

Total Oil ◽

Very High

The essential oil isolated from stem, fresh and mature fruits of Xanthium italicum Moretti by hydrodistillation was analyzed by gas chromatography-mass spectrometry. In the oil of stem, fresh and mature fruits, 121 components were identified, representing 94.6%, 92.1%, and 91.3% of the total oil, respectively. The most abundant compounds in stem oil were limonene (23.0%), methyl eugenol (5.4%), β-cubebene (5.0%),and δ-cadinene (3.3%). The oil of fresh fruits contained germacrene B (28.7%), shyobunol (16.7%), and α-humulene (8.4%) as major components. There were 4 major constituents in X. italicum oil from mature fruits: germacrene B (31.3%),α-humulene (11.8%), δ-cadinene (3.2%),and γ-muurolene (2.9%). Percentages of sesquiterpenes in oils from fresh and mature fruits were very high, 85.8% and 73.8 %.

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Chemical composition and anticholinesterase inhibitory activity of Pavetta graciliflora Wall. ex Ridl. essential oil

Zeitschrift für Naturforschung C ◽

10.1515/znc-2020-0075 ◽

2020 ◽

Vol 75 (11-12) ◽

pp. 467-471

Author(s):

Wan Mohd Nuzul Hakimi Wan Salleh ◽

Shamsul Khamis

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Chemical Composition ◽

Essential Oil ◽

Inhibitory Activity ◽

Anticholinesterase Activity ◽

Gas Chromatography Mass Spectrometry ◽

Caryophyllene Oxide ◽

Total Oil ◽

First Time

AbstractChemical composition and anticholinesterase activity of the essential oil of Pavetta graciliflora Wall. ex Ridl. (Rubiaceae) was examined for the first time. The essential oil was obtained by hydrodistillation and was fully characterized by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). A total of 20 components were identified in the essential oil, which made up 92.85% of the total oil. The essential oil is composed mainly of β-caryophyllene (42.52%), caryophyllene oxide (25.33%), β-pinene (8.67%), and α-pinene (6.52%). The essential oil showed weak inhibitory activity against acetylcholinesterase (AChE) (I%: 62.5%) and butyrylcholinesterase (BChE) (I%: 65.4%) assays. Our findings were shown to be very useful for the characterization, pharmaceutical, and therapeutic applications of the essential oil from P. graciliflora.

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Essential oil composition of three Cryptocarya species from Malaysia

Zeitschrift für Naturforschung C ◽

10.1515/znc-2020-0079 ◽

2020 ◽

Vol 75 (7-8) ◽

pp. 297-301

Author(s):

Muhammad Ammar Mohd Azhar ◽

Wan Mohd Nuzul Hakimi Wan Salleh ◽

Shamsul Khamis

Keyword(s):

Gas Chromatography ◽

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Essential Oil Composition ◽

Gas Chromatography Mass Spectrometry ◽

Skin Infections ◽

Oil Composition ◽

Traditional Medicines ◽

Total Oil

AbstractCryptocarya species are mainly distributed in Africa, Asia, Australia and South America, widely used in traditional medicines for the treatment of skin infections and diarrhea. The present investigation reports on the extraction by hydrodistillation and the chemical composition of three Cryptocarya species (Cryptocarya impressa, Cryptocarya infectoria, and Cryptocarya rugulosa) essential oils from Malaysia. The chemical composition of these essential oils was fully characterized by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). A total of 51 components were identified in C. impressa, C. infectoria, and C. rugulosa essential oils representing 91.6, 91.4, and 83.0% of the total oil, respectively. The high percentages of α-cadinol (40.7%) and 1,10-di-epi-cubenol (13.4%) were found in C. impressa oil. β-Caryophyllene (25.4%) and bicyclogermacrene (15.2%) were predominate in C. infectoria oil. While in C. rugulosa oil, bicyclogermacrene (15.6%), δ-cadinene (13.8%), and α-copaene (12.3%) were predominate. To the best of our knowledge, there is no report on the essential oil composition of these three species.

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