scholarly journals Characterization and application of Lippia alba (Mill) and Cymbopogon citratus D.C. Stapf. essential oils as natural sanitizers in coriander

2019 ◽  
Vol 39 (4) ◽  
pp. 993-998
Author(s):  
Amanda Beatriz Sales de LIMA ◽  
Inês Maria Barbosa Nunes QUEIROGA ◽  
Gabriela Muricy de Souza SILVA ◽  
Jessyka Silva da COSTA ◽  
Jossana Pereira de Sousa GUEDES ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cymbopogon Citratus ◽  
Lippia Alba

scholarly journals Use of Dimethyldioxirane in the Epoxidation of the Main Constituents of the Essential Oils Obtained from Tagetes Lucida, Cymbopogon Citratus, Lippia Alba and Eucalyptus citriodora

2011 ◽  
Vol 6 (7) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Luz A. Veloza ◽  
Lina M. Orozco ◽  
Juan C. Sepúlveda-Arias
Keyword(s):  
Essential Oils ◽  
Organic Synthesis ◽  
Oxygen Transfer ◽  
Environmentally Friendly ◽  
Acetone Solution ◽  
Oxidation Reactions ◽  
Eucalyptus Citriodora ◽  
Cymbopogon Citratus ◽  
Lippia Alba

Dimethyldioxirane (DMDO), a widely used oxidant in organic synthesis is considered an environmentally friendly oxygen transfer reagent because acetone is the only byproduct formed in its oxidation reactions. This work describes the isolation of the main constituents (terpenes) in the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora, their epoxidation with DMDO in acetone solution and the characterization of the resulting epoxides by GC-MS (EI) and NMR. This is one of the first reports involving the application of dioxirane chemistry to essential oils in order to generate modified compounds with potential uses in several areas of medicine and industry.

scholarly journals Effect of Lippia alba and Cymbopogon citratus essential oils on biofilms of Streptococcus mutans and cytotoxicity in CHO cells

2016 ◽  
Vol 194 ◽  
pp. 749-754 ◽  
Author(s):  
A. Tofiño-Rivera ◽  
M. Ortega-Cuadros ◽  
D. Galvis-Pareja ◽  
H. Jiménez-Rios ◽  
L.J. Merini ◽  
...  
Keyword(s):  
Essential Oils ◽  
Streptococcus Mutans ◽  
Cho Cells ◽  
Cymbopogon Citratus ◽  
Lippia Alba

scholarly journals Inhibitory action of some essential oils and phytochemicals on the growth of various moulds isolated from foods

2005 ◽  
Vol 48 (2) ◽  
pp. 245-250 ◽  
Author(s):  
Evandro Leite de Souza ◽  
Edeltrudes de Oliveira Lima ◽  
Kristerson Reinaldo de Luna Freire ◽  
Cristina Paiva de Sousa
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Aspergillus Flavus ◽  
Inhibitory Action ◽  
Citrus Limon ◽  
Cymbopogon Citratus ◽  
Fusarium Spp ◽  
Lippia Alba ◽  
Penicillium Spp ◽  
Sensitivity Profile

The aim of this study was to determine the sensitivity profile of mould strains isolated from foods to some essential oils and phytochemicals. The assayed mould strains were: Fusarium spp., Rhizopus spp., Aspergillus flavus, A. niger and Penicillium spp. According to results, Lippia alba N.E. Brown, Peumus boldus Molina, Lippia microphylla Phil., Citrus limon Risso and Cymbopogon citratus Stapf. essential oil and the phytochemicals citral, eugenol and mircene showed prominent antimould activity. Among the products that evidenced antimould activity, citral and eugenol showed the lowest minimum inhibitory concentrations, which was 1% and 4%, respectively, for the most of the tested mould strains.

scholarly journals In vitro bacteriostatic activity of Origanum vulgare, Cymbopogon citratus, and Lippia alba essential oils in cat food bacterial isolates

2019 ◽  
Vol 40 (6Supl2) ◽  
pp. 3107
Author(s):  
Monique Catarine Fischer Possamai ◽  
Isabela Carvalho dos Santos ◽  
Eloísa Schneider Silva ◽  
Zilda Cristiani Gazim ◽  
José Eduardo Gonçalves ◽  
...  
Keyword(s):  
Essential Oils ◽  
Animal Feed ◽  
Bacteriostatic Activity ◽  
Bacterial Isolates ◽  
Cymbopogon Citratus ◽  
Origanum Vulgare ◽  
Gram Positive ◽  
Gram Negative ◽  
Lippia Alba

The pet industry is currently expanding and specializing mainly in the field of domestic felines. Problems related to antimicrobial resistance are frequent, and the use of essential oils (EOs) in animal feed has become a novel treatment strategy. Thus, the objective of this study was to assess the bacteriostatic activity of Brazilian lemon balm (Lippia alba), lemon grass (Cymbopogon citratus), and oregano (Origanum vulgare) in bacterial isolates from 12 samples of cat food sold in bulk. The EOs from fresh leaves of crops were obtained from the Medicinal Garden of Paranaense University, Umuarama, Paraná. Cat food samples were processed for identification of gram-positive and gram-negative microorganisms. The determination of the bacteriostatic activity of the EOs was performed by determination of the minimum inhibitory concentration (MIC) at dilutions of 2.5, 1.25, and 0.62 mg/mL. The diffusion disc technique was used to evaluate the resistance profile to the main antimicrobials used in the feline clinic and to analyze the effect of the association of these antimicrobials with the EOs studied. A total of 23 isolates were obtained, of which 16 were gram-negative and seven were gram-positive. As for the oil composition for L. alba, C. citratus, and O. vulgare, 40, 24, and 44 compounds were identified, respectively, with the major ones being geranial, geranial/?-citral, and carvacrol, respectively. Regarding MIC, no differences were found for any EOs tested. The lowest MIC value was obtained for the C. citratus EO (0.83 mg/mL) for two bacteria (coagulase-negative Staphylococcus and Corynebacterium kutscheri). The means of the inhibition halos for the 10 antimicrobials tested in association or not with one of the EOs for Klebsiella aerogenes, Proteus vulgaris, and Serratia rubidaea showed that, for S. rubidaea, the inhibition halo diameter (12.4 mm) was greater (p < 0.05) when amoxicillin was associated with the O. vulgare EO than the association of the same antibiotic with the C. citratus EO (11.0 mm). For K. aerogenes and P. vulgaris, there was no difference in inhibition halo diameter when EOs were included. In conclusion, L. alba, C. citratus, and O. vulgare EOs are effective in inhibiting the growth of gram-positive and gram-negative bacteria and can be added to cat food to replace chemical antimicrobials.

Mosquito larvicidal activity of essential oils of Cymbopogon citratus and Thymus vulgaris grown in Cameroon

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
EG Nkouaya Mbanjo ◽  
F Tchoumbougnang ◽  
PM Jazet Dongmo ◽  
ML Sameza ◽  
PH Amvam Zollo ◽  
...  
Keyword(s):  
Essential Oils ◽  
Larvicidal Activity ◽  
Thymus Vulgaris ◽  
Cymbopogon Citratus ◽  
Mosquito Larvicidal Activity

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

2017 ◽  
Vol 52 (1) ◽  
pp. 10-17 ◽  
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.

scholarly journals Immunomodulation and Antioxidant Activities as Possible Trypanocidal and Cardioprotective Mechanisms of Major Terpenes from Lippia alba Essential Oils in an Experimental Model of Chronic Chagas Disease

Antioxidants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1851
Author(s):  
Denerieth Ximena Espinel-Mesa ◽  
Clara Isabel González Rugeles ◽  
Julio César Mantilla Hernández ◽  
Elena E. Stashenko ◽  
Carlos Andrés Villegas-Lanau ◽  
...  
Keyword(s):  
Essential Oils ◽  
Chagas Disease ◽  
Antioxidant Activities ◽  
Combined Therapy ◽  
Late Phase ◽  
Immunomodulatory Activity ◽  
Caryophyllene Oxide ◽  
Cardiac Damage ◽  
Lippia Alba ◽  
Chronic Chagas Disease

In the late phase of Trypanosoma cruzi infection, parasite persistence and an exaggerated immune response accompanied by oxidative stress play a crucial role in the genesis of Chronic Chagasic Cardiomyopathy (CCC). Current treatments (Benznidazole (BNZ) and Nifurtimox) can effect only the elimination of the parasite, but are ineffective for late stage treatment and for preventing heart damage and disease progression. In vivo trypanocidal and cardioprotective activity has been reported for Lippia alba essential oils (EOs), ascribed to their two major terpenes, limonene and caryophyllene oxide. To investigate the role of antioxidant and immunomodulatory mechanisms behind these properties, chronic-T. cruzi-infected rats were treated with oral synergistic mixtures of the aforementioned EOs. For this purpose, the EOs were optimized through limonene-enrichment fractioning and by the addition of exogenous caryophyllene oxide (LIMOX) and used alone or in combined therapy with subtherapeutic doses of BNZ (LIMOXBNZ). Clinical, toxicity, inflammatory, oxidative, and parasitological (qPCR) parameters were assessed in cardiac tissue. These therapies demonstrated meaningful antioxidant and immunomodulatory activity on markers involved in CCC pathogenesis (IFN-γ, TNF-α, IL-4, IL-10, and iNOS), which could explain their significant trypanocidal properties and their noteworthy role in preventing, and even reversing, the progression of cardiac damage in chronic Chagas disease.

scholarly journals Extraction and Formulation of Perfume from Cymbopogon citratus (Lemongrass)

2021 ◽  
Vol 25 (8) ◽  
pp. 1461-1463
Author(s):  
O.E. Ameh ◽  
J.I. Achika ◽  
N.M. Bello ◽  
A.J. Owolaja
Keyword(s):  
Solvent Extraction ◽  
Essential Oil ◽  
Essential Oils ◽  
Boiling Point ◽  
Extraction Method ◽  
Extraction Methods ◽  
Suitable Method ◽  
Oil Yield ◽  
Cymbopogon Citratus ◽  
Solvent Extraction Method

This work aimed to extract perfume from the leaves of Cymbopogon citratus using three extraction methods viz: distillation, solvent extraction and expression or effleurage. About 150 g of dried lemons grass were extracted using ethanol as the solvent to obtain essential oils required for the formulation of perfumes. The result of the hydrodistillation process showed that 1.23 g of essential oil per 130g of dry lemongrass produce 0.95% oil at 78 °C, while the effleurage method was 2.55 g of essential oil per 130 g of dry lemongrass sample thereby producing 1.96% oil yield. The solvent extraction method gave 2.7 g of essential oil per 130 g of dry lemongrass sample. This gives about 2.08 % yield of essential oil at a temperature of 78°C i.e. the boiling point of ethanol. The solvent extraction method yielded 2.08%, the effleuragemethod yielded 1.96% and the hydrodistillation method yielded 0.95% essential oil respectively. In conclusion, solvent extraction gave the highest yield because of less exposure to air and heat, which is highly recommended as the most suitable method for the extraction of essential oil.

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