Premna Species in Vietnam: Essential Oil Compositions and Mosquito Larvicidal Activities

Essential oils have emerged as viable alternatives to synthetic insecticides for control of mosquito-borne pathogens. The leaf essential oils of eight species of Premna (Lamiaceae) growing in central Vietnam have been obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry. Sesquiterpene hydrocarbons dominated most of the Premna essential oils, with the notable exception of Premnamekongensis from Ngoc Linh Nature Reserve, which had α-pinene as the major component. Larvicidal activities against Aedes aegypti have been determined and all of the Premna essential oils showed larvicidal activity with 24-h LC50 < 65 μg/mL. The leaf essential oils of Premnacambodiana from Chu Mom Ray National Park and Premnamekongensis from Ngoc Linh Nature Reserve showed the best larvicidal activities with 24-h LC50 of 16.8 and 18.0 μg/mL, respectively. The essential oil compositions and larvicidal activities of P. cambodiana, Premna flavescens, Premnamaclurei, P. mekongensis, and Premnapuberula are reported for the first time. Although the larvicidal activities of Premna leaf essential oils are promising, the essential oil yields are relatively low (0.10–0.25%).

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Callicarpa Species from Central Vietnam: Essential Oil Compositions and Mosquito Larvicidal Activities

Plants ◽

10.3390/plants9010113 ◽

2020 ◽

Vol 9 (1) ◽

pp. 113 ◽

Cited By ~ 1

Author(s):

Nguyen Huy Hung ◽

Le Thi Huong ◽

Nguyen Thanh Chung ◽

Nguyen Thi Hoai Thuong ◽

Prabodh Satyal ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Mosquito Control ◽

Control Agent ◽

Gas Chromatography Mass Spectrometry ◽

Chemical Compositions ◽

Central Vietnam ◽

Two Samples ◽

Potential Alternative ◽

Larvicidal Activities

There are around 140 species in the genus Callicarpa, with 23 species occurring in Vietnam. The Vietnamese Callicarpa species have been poorly studied. In this work, the leaf essential oils of C. bodinieri, C. candicans, C. formosana, C. longifolia, C. nudiflora, C. petelotii, C. rubella, and C. sinuata, have been obtained from plants growing in central Vietnam. The chemical compositions of the essential oils were determined using gas chromatography – mass spectrometry. Mosquito larvicidal activities of the essential oils were carried out against Aedes aegypti. All of the Callicarpa leaf essential oils showed larvicidal activity, but two samples of C. candicans were particularly active with 48-h LC50 values of 2.1 and 3.8 μg/mL. Callicarpa candicans essential oil should be considered as a potential alternative mosquito control agent.

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Chemical Compositions of the Rhizome, Leaf and Stem Oils from Malaysian Hornstedtia leonurus

Natural Product Communications ◽

10.1177/1934578x1300800427 ◽

2013 ◽

Vol 8 (4) ◽

pp. 1934578X1300800 ◽

Cited By ~ 5

Author(s):

Nor Akmalazura Jani ◽

Hasnah Mohd. Sirat ◽

NorAzah Mohamad Ali ◽

Azrina Aziz

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Essential Oils ◽

Gas Chromatography Mass Spectrometry ◽

Chemical Compositions ◽

Major Fraction ◽

Chromatography Mass Spectrometry ◽

First Time

The chemical compositions of the essential oil of the rhizome, leaf and stem of Hornstedtia leonurus Retz., collected from Negeri Sembilan, Malaysia, are reported for the first time. The essential oils were extracted using hydrodistillation and analyzed by gas chromatography (GC-FID) and gas chromatography/mass spectrometry (GC/MS). Seventeen (96.4%), thirteen (89.2%) and nine components (98.8%) were successfully identified from the rhizome, stem and leaf oils, respectively. Phenylpropanoids were found to be the major fraction, with methyleugenol being the most abundant compound in all oils with percentage compositions of 76.4% (rhizome), 80.3% (stem) and 74.5% (leaf).

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Dihydrotagetone, an Unusual Fruity Ketone, is Found in Enantiopure and Enantioenriched Forms in Additional Australian Native Taxa of Phebalium (Rutaceae: Boronieae)

Natural Product Communications ◽

10.1177/1934578x1300800614 ◽

2013 ◽

Vol 8 (6) ◽

pp. 1934578X1300800 ◽

Cited By ~ 1

Author(s):

Nicholas J. Sadgrove ◽

Ian R. H. Telford ◽

Ben W. Greatrex ◽

Ashley Dowell ◽

Graham L. Jones

Keyword(s):

Mass Spectrometry ◽

Nuclear Magnetic Resonance ◽

Gas Chromatography ◽

Magnetic Resonance ◽

Essential Oil ◽

Magnetic Resonance Spectroscopy ◽

Essential Oils ◽

Gas Chromatography Mass Spectrometry ◽

Resonance Spectroscopy ◽

First Time

Here we report for the first time hydrodistillation of leaf essential oils from Phebalium squamulosum subsp. verrucosum, P. glandulosum subsp. eglandulosum, P. glandulosum subsp. nitidum and P. glandulosum subsp. angustifolium (Rutaceae: Boronieae). Essential oils were analysed using gas-chromatography/mass spectrometry (GC-MS) and nuclear magnetic resonance spectroscopy (NMR). With the exception of P. glandulosum subsp. angustifolium, all taxa yielded essential oils in relatively high amounts (1–3%, w/w) made up predominantly of 2,6-dimethyloct-7-en-4-one (dihydrotagetone). The essential oil from P. squamulosum subsp. verrucosum contains either (+)-dihydrotagetone ( ee 94–100%) or (-)-dihydrotagetone ( ee 17–18%). Taxonomically, these results support the proposal that P. squamulosum subsp. verrucosum may be specifically misplaced, phytochemically resembling the P. glandulosum complex. Similarly, P. glandulosum subsp. angustifolium phytochemically resembles P. distans or P. longifolium and also appears to be assigned incorrectly to the P. glandulosum group.

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Comparative Analysis of the Essential Oils from two Asteraceous Plants Found in Nigeria, Acanthospermum Hispidum and Tithonia Diversifolia

Natural Product Communications ◽

10.1177/1934578x0800301031 ◽

2008 ◽

Vol 3 (10) ◽

pp. 1934578X0800301

Author(s):

Adebayo A. Gbolade ◽

Daniela M. Biondi ◽

Giuseppe Ruberto

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Comparative Analysis ◽

Essential Oil ◽

Essential Oils ◽

Gas Chromatography Mass Spectrometry ◽

Tithonia Diversifolia ◽

Aerial Parts ◽

Monoterpene Hydrocarbons ◽

First Time

The essential oils from two members of the Asteraceae ( Acanthospermum hispidum DC. aerial parts, and leaves of Tithonia diversifolia (Hemsley) A. Gray), growing wild in Osun State, Nigeria, have been characterised by combined gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. Twenty-nine components have been fully identified and grouped into monoterpene hydrocarbons (22.2%), oxygenated monoterpenes (4.6%), sesquiterpenes hydrocarbons (58.2%) and oxygenated sesquiterpenes (10.8%) in A. hispidum. The main constituents of the oil were β-caryophyllene (28.0%), α-pinene (15.9%) and bicyclogermacrene (11.0%) among the hydrocarbon compounds, and bisabolol (8.9%) and carvacrol methyl ether (4.1%) among the oxygenated components. Tithonia diversifolia essential oil comprised seventeen components and was characterised by a predominant content of monoterpene hydrocarbons (87.9%), cis-β-ocimene (43.7%), α-pinene (28.6%) and limonene (12.0%) being the main compounds. Sesquiterpenes represented ca. 10% oil, as sum of hydrocarbons and oxygenated components. A new chemotype is established for T. diversifolia, while the Nigerian A. hispidum is being reported for the first time as a new source of essential oil with some distinction in composition from those of other sources.

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Chemical Composition of the Essential Oil ofCyperus ConglomeratusRottb. from Iran

E-Journal of Chemistry ◽

10.1155/2011/241325 ◽

2011 ◽

Vol 8 (s1) ◽

pp. S293-S296 ◽

Cited By ~ 2

Author(s):

A. Feizbakhsh ◽

A. Naeemy

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Chemical Composition ◽

Essential Oil ◽

Gas Chromatography Mass Spectrometry ◽

Major Constituent ◽

Chromatography Mass Spectrometry ◽

Sesquiterpene Hydrocarbons ◽

First Time

The compositions of the essential oil fromcyperus conglomerateswere obtained by hydrodistillation and analyzed by GC/MS (Gas chromatography/mass spectrometry). Twenty seven compounds were identified. Of which the cyperene (27.2%) was the major component. This is the first time that an oil ofC. conglomerateshas been found with cyperene as the major constituent. Also, the oil ofC. conglomeratesconsisted mainly of sesquiterpene hydrocarbons, oxygenated sesquiterpenes and a small percentage of monoterpenes.

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Essential Oil Hydrodistillation Process from Vietnamese Calamondin (Citrus microcarpa) Peels and GC/MS Analysis of Essential Oils Components

Asian Journal of Chemistry ◽

10.14233/ajchem.2019.22148 ◽

2019 ◽

Vol 31 (11) ◽

pp. 2585-2588 ◽

Cited By ~ 14

Author(s):

Ngo Thi Cam Quyen ◽

Tran Thi Kim Ngan ◽

Tan Phat Dao ◽

Phan Nguyen Quynh Anh ◽

Ngo Quoc Anh ◽

...

Keyword(s):

Mass Spectrometry ◽

Essential Oil ◽

Essential Oils ◽

Gas Chromatography Mass Spectrometry ◽

Optimal Conditions ◽

Distillation Process ◽

Factors Affecting ◽

Oil Extract ◽

Primary Compound ◽

Water Ratio

The essential oil of Citrus microcarpa peels was applied in many fields, and the methods to improve the efficiency of citrus exploitation were increasingly concerned. In this study, citrus essential oil was extracted from calamondin by hydrodistillation. This study was carried out to investigate the factors affecting the distillation of essential oils. The highest performance of the distillation process was 2.45 % with optimal conditions (material-water ratio of 1:3 g/mL, time of 2 h, the temperature of 120 ºC). Moreover, calamondin (Citrus microcarpa) peels oil extract was analyzed by gas chromatography-mass spectrometry (GC-MS). The primary compound of calamondin essential oil include limonene 96.925 %, β-myrcene 1.424 %, 1R-α-pinene 0.561 %, cyclohexene 0.343 %, 1R-α-pinene 0.561 % and β-cubebene 0.598 %.

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Chemical composition and insecticidal activity of Garcinia gardneriana (Planchon & Triana) Zappi (Clusiaceae) essential oil

Boletin Latinoamericano y del Caribe de Plantas Medicinales y Aromaticas ◽

10.37360/blacpma.21.20.5.37 ◽

2021 ◽

Vol 20 (5) ◽

pp. 503-514

Author(s):

Carla Maria Mariano Fernandez ◽

◽

Fabiana Brusco Lorenzetti ◽

Sirlene Adriana Kleinubing ◽

Joao Paulo Pinguello de Andrade ◽

...

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Chemical Composition ◽

Chemical Analysis ◽

Essential Oil ◽

Immersion Test ◽

Acaricidal Activity ◽

Gas Chromatography Mass Spectrometry ◽

Larvicidal Effect ◽

Sesquiterpene Hydrocarbons

The present study aimed to analyze the chemical composition of the essential oil from Garcinia gardneriana (Planchon & Triana) Zappi leaves and fruits, and to determine its acaricidal activity on Rhipicephalus microplus by larval packet test and larvicidal action on Aedes aegypti by larval immersion test. The chemical analysis of the essential oil by gas chromatography-mass spectrometry identified sesquiterpene hydrocarbons and oxygenated sesquiterpenes in bacupari leaves and fruits, and α-cedrene, α-chamigrene, α-trans-bergamotene, and β-curcumene as major compounds. Essential oil from leaves of G. gardneriana presented acaricidal activity on R. microplus (LC50 = 4.8 mg/mL; LC99 = 10.8 mg/mL) and larvicidal effect on A. aegypti (LC50 = 5.4 mg/mL; LC99 = 11.6 mg/mL), whereas essential oil from the fruits of G. gardneriana showed LC50 = 4.6 mg/mL and LC99 = 8.9 mg/mL against R. microplus and LC50 = 6.4 mg/mL and LC99 = 13.9 mg/mL against A. aegypti. These results thus demonstrate the potential acaricidal and larvicidal activity of essential oil of G. gardneriana, offering new perspectives for the realization of bioassays from this essential oil.

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Essential Oil Composition ofPinus peuceGriseb. Needles and Twigs from Two National Parks of Kosovo

The Scientific World JOURNAL ◽

10.1155/2016/5393079 ◽

2016 ◽

Vol 2016 ◽

pp. 1-9 ◽

Cited By ~ 4

Author(s):

Avni Hajdari ◽

Behxhet Mustafa ◽

Dashnor Nebija ◽

Hyrmete Selimi ◽

Zeqir Veselaj ◽

...

Keyword(s):

Gas Chromatography ◽

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

National Park ◽

Essential Oil Composition ◽

Gas Chromatography Mass Spectrometry ◽

Oil Composition ◽

Plant Materials ◽

Geographical Variations

The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of thePinus peuceGrisebach, Pinaceae in Kosovo. Plant materials were collected from three populations in the Sharri National Park and from four other populations in the Bjeshkët e Nemuna National Park, in Kosovo. Essential oils were obtained by steam distillation and analyzed by GC-FID (Gas Chromatography-Flame Ionization Detection) and GC-MS (Gas Chromatography-Mass Spectrometry). The results showed that the yield of essential oils (v/wdry weight) varied depending on the origin of population and the plant organs and ranged from 0.7 to 3.3%. In total, 51 compounds were identified. The main compounds wereα-pinene (needles: 21.6–34.9%; twigs: 11.0–24%),β-phellandrene (needles: 4.1–27.7; twigs: 29.0–49.8%), andβ-pinene (needles: 10.0–16.1; twigs: 6.9–20.7%). HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used to assess geographical variations in essential oil composition. Statistical analysis showed that the analyzed populations are grouped in three main clusters which seem to reflect microclimatic conditions on the chemical composition of the essential oils.

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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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Suppression of Linalool Acetate Production in Lavandula x intermedia

Natural Product Communications ◽

10.1177/1934578x0900401115 ◽

2009 ◽

Vol 4 (11) ◽

pp. 1934578X0900401 ◽

Cited By ~ 2

Author(s):

Amy Desautels ◽

Kamal Biswas ◽

Alexander Lane ◽

Astrid Boeckelmann ◽

Soheil S. Mahmoud

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oil ◽

Essential Oils ◽

Gas Chromatography Mass Spectrometry ◽

Major Constituent ◽

Improved Method ◽

Acetate Production ◽

Essential Oil Production ◽

Sensitive Method

Linalool acetate, one of the major constituent of several essential oils, is heat-labile and decomposes upon exposure to the high injector temperature during gas chromatography. Here we report the development of an improved method for detection of this compound by gas chromatography mass spectrometry (GCMS) using cold on-column injection of the sample. By using this sensitive method, it has been demonstrated that a lavandin (L.x intermedia) mutant accumulates trace quantities of linalool acetate and camphor and higher amounts of cineole and borneol compared to its parent. This plant, which very likely carries a point mutation in one or more of the genes involved in essential oil production, provides a unique tool for investigating regulation of essential oil biogenesis in plants.

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