Data showing chemical compositions of the essential oils of the leaves of Cymbopogon citratus obtained by varying pH of the extraction medium

Aim and Objective: Oxidative stress is implicated in the development and progression of many disease. Some of appropriate actions that could be initiated to taken to resolve the problem of these diseases are search for new antioxidant substances isolated from plants. The aims of this study were to study the intraspecies variations of A. verticillata and C. caeruleus essential oils from 8 locations using statistical analysis, the in vitro antioxidant properties of collective essential oils and in combinations. Materials and Methods: The essential oils were analyzed by GC and GC-MS. The intraspecies variations of the essential oil compositions were discussed using principal component analysis (PCA) and cluster analysis (CA). The antioxidant properties were evaluated DPPH-radical scavenging activity and β-carotene bleaching test. Results: The main components of Ammoides verticillata collective essential oil (Coll EO) were thymol (30.5%), carvacrol (23.2%), p-cymene (13.1%), limonene (12.5%) and terpinene-4-ol (12.3%). While roots of Carthamus caeruleus essential oil were dominated by carline oxide (86.2%). The chemical variability allowed the discrimination of two main Groups for both Coll EOs. A direct correlation between the altitudes, climate and the chemical compositions was evidenced. Ammoides verticulata and Carthamus caeruleus Coll Eos showed good antioxidant activity. In binary mixture, the interaction both Coll Eos and between oils rich of thymol and/or carvacrol with carlina oxide produced the best synergistic effects, compared to individual essential oils and the synthetic antioxidant (BHT). Conclusion: Ammoides verticillata and Carthamus caeruleus essential oil blends can be used as a natural food preservative and alternative to chemical antioxidants.

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Antioxidant and Cytotoxic Activities of Myrtaceae Essential Oils Rich in Terpenoids From Brazil

Natural Product Communications ◽

10.1177/1934578x21996156 ◽

2021 ◽

Vol 16 (2) ◽

pp. 1934578X2199615

Author(s):

Lucas Botelho Jerônimo ◽

Jamile S. da Costa ◽

Laine C. Pinto ◽

Raquel C. Montenegro ◽

William N. Setzer ◽

...

Keyword(s):

Essential Oils ◽

Cancer Cells ◽

Antioxidant Activities ◽

Human Cancer ◽

Psidium Guajava ◽

Cytotoxic Activities ◽

Chemical Compositions ◽

Main Compound ◽

Human Cancer Cells ◽

High Concentrations

This work analyzed the chemical compositions and evaluated the antioxidant and cytotoxic activities of essential oils (EO) of Eugenia patrisii (Epat), Eugenia stipitata (Esti), Myrcia splendens (Mspl), Myrcia sylvatica (Msyl), Psidium guajava (Pgua), and Psidium guineense (Pgui-1 and Pgui-2) from the Brazilian Amazon. Sesquiterpenoids were found in high concentrations in the oils of E. patrisii and M. splendens, which were rich in E-caryophyllene (32.0% and 45.8%); E. stipitata and M. sylvatica, which displayed germacrene D (11.8%) and germacrene B (24.5%); and P. guajava that showed epi-β-bisabolol (16.1%) as the main compound. However, P. guineense samples (Pgui-1 and Pgui-2) were rich in monoterpenoids such as limonene (Pgui-1: 30.2%; Pgui-2 30.4%) and α-pinene (Pgui-1: 22.5%; Pgui-2: 17.7%). The samples showed a weak and moderate antioxidant activities in the DPPH assay, displaying inhibition rates from 11.5% to 38.6% (at 10 mg/mL). All samples were cytotoxic against human cancer cells by the MTT method. Epat oil showed higher activity against melanoma (SKMEL-19, IC505.8 µg/mL), gastric (AGP01, IC503.2 µg/mL), and colon (HCT116, IC506.7 µg/mL). Meanwhile, the samples Pgua and Pgui were more active against breast cancer cells (MCF7, IC5012.4 µg/mL and 11.6 µg/mL, respectively).

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Chemical Compositions, Mosquito Larvicidal and Antimicrobial Activities of Essential Oils from Five Species of Cinnamomum Growing Wild in North Central Vietnam

Molecules ◽

10.3390/molecules25061303 ◽

2020 ◽

Vol 25 (6) ◽

pp. 1303 ◽

Cited By ~ 7

Author(s):

Do N. Dai ◽

Nguyen T. Chung ◽

Le T. Huong ◽

Nguyen H. Hung ◽

Dao T.M. Chau ◽

...

Keyword(s):

Antimicrobial Activity ◽

Essential Oil ◽

Essential Oils ◽

Larvicidal Activity ◽

Antimicrobial Agents ◽

Chemical Compositions ◽

North Central ◽

Mosquito Larvicidal Activity ◽

Central Vietnam ◽

Leaf Essential Oil

Members of the genus Cinnamomum (Lauraceae) have aromatic volatiles in their leaves and bark and some species are commercially important herbs and spices. In this work, the essential oils from five species of Cinnamomum (C. damhaensis, C. longipetiolatum, C. ovatum, C. polyadelphum and C. tonkinense) growing wild in north central Vietnam were obtained by hydrodistillation, analyzed by gas chromatography and screened for antimicrobial and mosquito larvicidal activity. The leaf essential oil of C. tonkinense, rich in β-phellandrene (23.1%) and linalool (32.2%), showed excellent antimicrobial activity (MIC of 32 μg/mL against Enterococcus faecalis and Candida albicans) and larvicidal activity (24 h LC50 of 17.4 μg/mL on Aedes aegypti and 14.1 μg/mL against Culex quinquefasciatus). Cinnamomum polyadelphum leaf essential oil also showed notable antimicrobial activity against Gram-positive bacteria and mosquito larvicidal activity, attributable to relatively high concentrations of neral (11.7%) and geranial (16.6%). Thus, members of the genus Cinnamomum from Vietnam have shown promise as antimicrobial agents and as potential vector control agents for mosquitoes.

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Food preservative potential of essential oils and fractions from Cymbopogon citratus, Ocimum gratissimum and Thymus vulgaris against mycotoxigenic fungi

International Journal of Food Microbiology ◽

10.1016/j.ijfoodmicro.2009.02.009 ◽

2009 ◽

Vol 131 (2-3) ◽

pp. 151-156 ◽

Cited By ~ 48

Author(s):

J. Nguefack ◽

J.B. Lekagne Dongmo ◽

C.D. Dakole ◽

V. Leth ◽

H.F. Vismer ◽

...

Keyword(s):

Essential Oils ◽

Thymus Vulgaris ◽

Cymbopogon Citratus ◽

Food Preservative ◽

Ocimum Gratissimum ◽

Mycotoxigenic Fungi

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Aromatic Profiles of Essential Oils from Five Commonly Used Thai Basils

Foods ◽

10.3390/foods7110175 ◽

2018 ◽

Vol 7 (11) ◽

pp. 175 ◽

Cited By ~ 13

Author(s):

Tibet Tangpao ◽

Hsiao-Hang Chung ◽

Sarana Sommano

Keyword(s):

Mass Spectrometry ◽

Essential Oils ◽

Raw Materials ◽

Principal Component ◽

Methyl Eugenol ◽

Gas Chromatography Mass Spectrometry ◽

Ocimum Sanctum ◽

Chemical Compositions ◽

Ocimum Species ◽

Holy Basil

The research objectives of this study are to analyse the volatile compositions of different basil types available in Thai markets and to descriptively determine their aromatic qualities. Essential oils were hydro-distillated from fresh leaves of two Holy basil (Ocimum sanctum) varieties namely, white and red and other basil species, including Tree basil (O. gratissimum), Thai basil (O. basilicum var. thyrsiflorum), and Lemon basil (O. citriodorum). Oil physiochemical characteristics and volatile chromatograms from Gas Chromatography–Mass Spectrometry (GC-MS) were used to qualitatively and quantitatively describe the chemical compositions. Estragole, eugenol, and methyl eugenol were among the major volatiles found in the essential oils of these basil types. Classification by Principal Component Analysis (PCA) advised that these Ocimum spp. samples are grouped based on either the distinctive anise, citrus aroma (estragole, geranial and neral), or spice-like aroma (methyl eugenol, β-caryophyllene, and α-cubebene). The essential oils were also used for descriptive sensorial determination by five semi-trained panellists, using the following developed terms: anise, citrus, herb, spice, sweet, and woody. The panellists were able to differentiate essential oils of white Holy basil from red Holy basil based on the intensity of the anisic attribute, while the anise and citrus scents were detected as dominant in the Lemon basil, Tree basil, and Thai basil essential oils. The overall benefit from this research was the elucidation of aromatic qualities from Thai common Ocimum species in order to assess their potential as the raw materials for new food products.

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Fumigation and repellency of essential oils against Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) in cowpea

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2017000100002 ◽

2017 ◽

Vol 52 (1) ◽

pp. 10-17 ◽

Cited By ~ 2

Author(s):

José Vargas de Oliveira ◽

Solange Maria de França ◽

Douglas Rafael e Silva Barbosa ◽

Kamilla de Andrade Dutra ◽

Alice Maria Nascimento de Araujo ◽

...

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Essential Oils ◽

Callosobruchus Maculatus ◽

Ricinus Communis ◽

Syzygium Aromaticum ◽

Cymbopogon Citratus ◽

Cinnamomum Zeylanicum ◽

Main Component ◽

Piper Aduncum

Abstract: The objective of this work was to assess the fumigant and repellent effects of essential oils on adults of Callosobruchus maculatus and to identify the chemical composition of two of the tested essential oils. For the fumigation test, the oils of Schinus terebinthifolius, Piper aduncum, Syzygium aromaticum, Piper hispidinervum, Cymbopogon citratus, Cinnamomum zeylanicum, and the eugenol compound were tested at different concentrations on C. maculatus adults. For the repellency test, the oils of S. terebinthifolius, P. aduncum, P. hispidinervum, S. aromaticum, Jatropha curcas, and Ricinus communis were evaluated. In the fumigation test, it was observed that P. aduncum and eugenol showed the highest and lowest LC50s, of 169.50 and 0.28 μL L-1 air, respectively. In the repellency test, the oils of S. aromaticum and P. hispidinervum were repellent to C. maculatus. Gas chromatography coupled to mass spectrometry (GC-MS) analysis of these two oils identified 42 compounds, of which safrole was the main component of P. hispidinervum and eugenol of S. aromaticum. The essential oils of S. aromaticum, C. zeylanicum, and the eugenol compound are the most promising to control C. maculatus, via fumigation.

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Chemical composition, antimicrobial, antioxidative and anticholinesterase activity of Satureja Montana L. ssp montana essential oil

Open Life Sciences ◽

10.2478/s11535-014-0298-x ◽

2014 ◽

Vol 9 (7) ◽

pp. 668-677 ◽

Cited By ~ 5

Author(s):

Tatjana Mihajilov-Krstev ◽

Dragan Radnović ◽

Dušanka Kitić ◽

Vesna Jovanović ◽

Violeta Mitić ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Human Serum ◽

Biological Activities ◽

Serum Cholinesterase ◽

Health Improvement ◽

Chemical Compositions ◽

Bacterial Strains ◽

Antimicrobial Potential ◽

Satureja Montana

AbstractThe present study investigates the chemical compositions of three Satureja montana L. ssp montana essential oils and correlates chemical variability with biological activities. GC/MS analysis showed that with an increase in altitude (100–500–800 m), a higher content of linalool, terpinen-4-ol and cis-sabinene hydrate was found, while the percentage of phenolic compounds, thymol and carvacrol decreased. Antimicrobial activity of the essential oils was tested against 7 fungal and 23 bacterial strains. The essential oil characterized by the highest content of phenols and alcohols exhibited the highest antimicrobial potential. The correlation analysis showed that the major carriers of the obtained antioxidant activity are oxygenated monoterpenes. All essential oils inhibited human serum cholinesterase activity. High antimicrobial potential, together with moderate antioxidant capacity and strong inhibition of human serum cholinesterase, classifies S. montana essential oil as a natural source of compounds that can be used in the treatment of foodborne and neurological diseases, wound and other infections, as well as for general health improvement.

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