scholarly journals Physicochemical and Antioxidant Properties of Cymbopogon citratus Essential Oil

2015 ◽  
Vol 4 (3) ◽  
pp. 36 ◽  
Author(s):  
Maria Del Carmen Vazquez-Briones ◽  
Luis Ricardo Hernandez ◽  
Jose Angel Guerrero-Beltran
Keyword(s):  
Essential Oil ◽  
Chemical Structure ◽  
Antioxidant Properties ◽  
Gas Chromatography Mass Spectrometry ◽  
Tea Leaves ◽  
Cymbopogon Citratus ◽  
Ir Spectrometry ◽  
Naked Eye ◽  
Nmr Techniques ◽  
Ft Ir

<p>In this study, the essential oil (EO) of lemongrass (<em>Cymbopogon citratus</em>) or “lemon tea” leaves was studied. The EO was obtained by the steaming (0.75 ± 0.05%) and distillation (1.5 ± 0.07%), assisted by microwaves, methods. The EO had a refractive index of 1.483 ± 0.001 (20 °C) and a density of 0.873 ± 0.005 g/mL (27 °C). Color parameters of the oil corroborate the yellow hue observed by the naked eye. The Gas chromatography-Mass spectrometry (GC-MS), Fourier Transform Infrared (FT-IR) Spectrometry, and Nuclear Magnetic Resonance (NMR) techniques permitted to characterize the EO and revealed the chemical structure of the major component: citral (neral and geranial). The phenolic compounds content was 149.2 ± 6.0 mg Gallic acid equivalents (GAE) per 100 mL of oil and the antioxidant activity was 44.06 ± 0.20 mg Trolox (T) per 100 mL of essential oil.</p>

scholarly journals Volatile Compounds and Antioxidant and Antimicrobial Activities of Selected Citrus Essential Oils Originated from Nepal

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6683
Author(s):  
Devi Prasad Bhandari ◽  
Darbin Kumar Poudel ◽  
Prabodh Satyal ◽  
Karan Khadayat ◽  
Sital Dhami ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Citrus Sinensis ◽  
Antioxidant Properties ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Citrus Species ◽  
Citrus Peel ◽  
Antioxidant And Antimicrobial Activities

Citrus species of plants are among the most commercially cultivated crops, mainly for their fruit. Besides, the generally consumed flesh inside the fruit, the peel is quite important too. Essential oils extracted from the peel have a history of being used by humankind for centuries. These essential oils are rich in antioxidants and antimicrobial agents. Comparative investigation of volatile constituents, and antioxidant and antimicrobial activities were undertaken. The essential oils were evaluated through gas chromatography-mass spectrometry (GC–MS), and enantiomeric composition by chiral GC–MS. Similarly, the antioxidant properties were evaluated by 2,2-diphenyl-1-picrylhydrazyl scavenging assay, and antimicrobial activities were assayed using the disk diffusion method. The highest extraction yield of 1.83% was observed in Citrus sinensis Osbeck. GC–MS analysis showed limonene (63.76–89.15%), γ-terpinene (0.24–6.43%), β-pinene (0.15–6.09%), linalool (0.35–3.5%), sabinene (0.77–2.17%), myrcene (0.74–1.75%), α-terpineol (0.28–1.15%), and α-pinene (0.2–0.58%) as the major constituents of the essential oil of the Citrus species studied. For the first time, through our study, chiral terpenoids have been observed from Citrus grandis Osbeck essential oil. The order of antioxidant activity is as follows: Citrus grandis Osbeck red flesh > Citrus reticulata Blanco > Citrus sinensis Osbeck > Citrus grandis Osbeck white flesh. Except for Citrus grandis Osbeck white flesh (52.34 µL/mL), all samples demonstrated stronger antioxidant activities than those of the positive control, quercetin (5.60 µL/mL). Therefore, these essential oils can be used as a safe natural antioxidant to prevent product oxidation. Likewise, citrus peel essential oil showed antimicrobial activity against tested bacterial strains, albeit marginal.

PHYTOCHEMICAL SCREENING AND GC-MS ANALYSIS OF THE ESSENTIAL OIL EXTRACT OF THE AROMATIC PLANT CYMBOPOGON CITRATUS

2021 ◽  
pp. 28-29
Author(s):  
Umadevi. D ◽  
K.U.M.A Rafeeq
Keyword(s):  
Mass Spectrometry ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Folk Medicine ◽  
Gas Chromatography Mass Spectrometry ◽  
Aqueous Extracts ◽  
Phytochemical Screening ◽  
Aromatic Plant ◽  
Cymbopogon Citratus ◽  
Oil Extract

Cymbopogon citratus, widely known as lemongrass is used as folk medicine for several disease conditions. Preliminary phytochemical screening of the essential oil extract of C. citratus revealed the presence of various bioactive compounds like alkaloids, avonoids, saponins, tannins and phenolic compounds in the aqueous extracts. Essential oil was extracted from C. citratus leaves and its chemical constituents were identied by Gas Chromatography-Mass Spectrometry (GC-MS).

scholarly journals Development of a Millet Starch Edible Film Containing Clove Essential Oil

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 184 ◽  
Author(s):  
Alaa G. Al-Hashimi ◽  
Altemimi B. Ammar ◽  
Lakshmanan G. ◽  
Francesco Cacciola ◽  
Naoufal Lakhssassi
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Antioxidant Properties ◽  
Control Sample ◽  
Barrier Properties ◽  
Edible Film ◽  
Gas Chromatography Mass Spectrometry ◽  
Syzygium Aromaticum ◽  
Preservation Method ◽  
Clove Essential Oil

Medicinal plants contain various secondary metabolites. The present study analyzed the essential oil of buds from clove (Syzygium aromaticum L.; Family: Myrtaceae) using gas chromatography-mass spectrometry (GC-MS). GC-MS analysis showed the presence of six major phytoconstituents, such as eugenol (66.01%), caryophyllene (19.88%), caryophyllene oxide (5.80%), phenol, 2-methoxy-4-(2-propenyl)-acetate (4.55%), and humulene (3.75%). The effect of clove essential oils (CEO) at 0%, 1%, 2%, and 3% (w/w) on the mechanical and barrier properties of starch films was evaluated. The tensile strength (TS) and elongation (E) of films with clove essential oil were 6.25 ± 0.03 MPa and 5.67% ± 0.08%, respectively. The antioxidant activity of the films significantly increased the millet starch film and presented the lowest antioxidant activity (0.3%) at a 30 minute incubation for the control sample, while increasing CEO fraction in the starch film lead to an increase in antioxidant activity, and the 3% CEO combined film presented the highest antioxidant activity (15.96%) at 90 min incubation. This finding could be explained by the incorporation of clove oil containing antioxidant properties that significantly increased with the incorporation of CEO (p < 0.05). A zone of inhibition ranging from 16 to 27 mm in diameter was obtained when using a concentration of CEO ranging from 1% to 3%. We also observed the presence of an antimicrobial activity on several tested microorganism including Escherichia coli, Pseudomonas aeruginosa, Enterobacter sp, Bacillus cereus, Staphylococcus aureus, and Trichoderma fungi. Thus, the current study reveals the possibility of using a millet starch edible film as a preservation method.

scholarly journals Essential Oil of Cymbopogon Citratus Grown in Umuahia: A Viable Candidate for Anti-Inflammatory and Antioxidant Therapy

2021 ◽  
Vol 25 (1) ◽  
pp. 1-14
Author(s):  
Uchechi Bliss Onyedikachi ◽  
Favour Matthew Awah ◽  
Charles Nnanna Chukwu ◽  
Emmanuel Ejiofor
Keyword(s):  
Essential Oil ◽  
Vitamin C ◽  
Therapeutic Potential ◽  
Preliminary Evidence ◽  
Gas Chromatography Mass Spectrometry ◽  
Cymbopogon Citratus ◽  
Antioxidant Power ◽  
Ferric Reducing Antioxidant Power ◽  
Anti Inflammatory

Abstract The essential oils of Cymbopogon citratus (EOCC) has found use in medicine, food and chemical industry. This study attempts to provide evidence of its suitability for antioxidant and anti-inflammatory therapy. Total phenol and total flavonoid of EOCC was 49.83±0.39mg GAE/g of extract and 352.82±3.45 µg QEC/g of extract respectively. Gas chromatography-mass spectrometry (GC-MS) analysis of its essential oil (EOCC) showed 25 peaks with myrcenyl acetate (9.703%), caryophyllene (8.997%), citronella (6.383%) been the most abundant. The in vitro anti-inflammatory assay using human red blood cell (HRBC) membrane stabilization shows that at 200µg/mL, the percentage inhibition of EOCC was significantly higher compared to diclofenac both for heat-induced and hypotonic induced haemolysis. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays showed a comparable and dose-dependent increase from 50 to 400 μg/mL in relation to vitamin C. Half maximal inhibitory concentration (IC50) of EOCC (73.16±12.89 μg/mL and 656.01±0.01 μmol Fe (II)/L) was remarkably higher compared to that of vitamin C (69.09±4.52 μg/mL and 246.79±0.01 μmol Fe (II)/L) both for DPPH and FRAP assays respectively. In conclusion, results from this study establish preliminary evidence on the therapeutic potential of EOCC in managing inflammation and oxidative stress caused by free radicals.

Essential oil chemical composition, antimicrobial, anticancer, and antioxidant effects of Thymus convolutus Klokov in Turkey

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Selma Celen Yuceturk ◽  
Sumeyye Aydogan Turkoglu ◽  
Feray Kockar ◽  
F. Zehra Kucukbay ◽  
A. Dilek Azaz
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Umbilical Vein ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Enterobacter Aerogenes ◽  
Gas Chromatography Mass Spectrometry ◽  
Human Hepatoma Cells ◽  
Main Compound ◽  
Main Component

Abstract In this study, the chemical composition, antimicrobial, antioxidant, and anticancer effects of Thymus convolutus Klokov oil and its main compound camphor were investigated. The oil was isolated from T. convolutus using hydrodistillation method, analyzed by gas chromatography/mass spectrometry (GC–MS), and 66 compounds were identified. The main component was determined as camphor at 16.6%. The antioxidant properties were identified with the DPPH (2,2′-diphenyl-1-picrylhydrazyl) radical-scavenging method and, 33.39 ± 0.25% DPPH was scavenging in 1000 μg/mL of essential oil. The strong antimicrobial activity was observed against Escherichia coli, Enterobacter aerogenes, Proteus vulgaris, and Pseudomonas aeruginosa with MIC values of 125 μg/mL. Aspergillus flavus was more sensitive (28%) against T. convolutus essential oil than other fungi. The cytotoxic effect of oil was analyzed by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) method. Camphor was effective on human hepatoma cells (Hep3B) at concentrations of 1 mg/mL, 500, 250, and 125 μg/mL, while essential oil of T. convolutus was found to be effective at concentrations of 250 and 125 μg/mL. A reduction in cell proliferation was observed in colon carcinoma cells (HT-29) treated with 500 μg/mL camphor for 48 h. No statistically significant effect was found in Umbilical Vein Endothelial Cells (HUVEC) treated with essential oil and camphor.

scholarly journals Functional and Antioxidant Properties of Plastic Bottle Caps Incorporated with BHA or BHT

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4545
Author(s):  
Yu-Wen Wang ◽  
Ya-Na Li ◽  
Qin-Bao Lin ◽  
Xiao Wang ◽  
Zeng-Hui Li ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Properties ◽  
Butylated Hydroxytoluene ◽  
Scanning Calorimetry ◽  
Removal Torque ◽  
Ir Spectrometry ◽  
Plastic Bottle ◽  
Highly Sensitive ◽  
Ft Ir ◽  
Noncovalent Bonding

In this study, we prepared new antioxidant active plastic bottle caps by incorporating butylated hydroxyanisole (BHA) or butylated hydroxytoluene (BHT) and 2% (w/w) white masterbatch in high-density polyethylene (HDPE). Fourier-transform infrared (FT-IR) spectrometry revealed that the antioxidants and HDPE were uniformly mixed with noncovalent bonding. In addition, the differential scanning calorimetry (DSC) test revealed that the change in melting point and initial extrapolation temperature of the antioxidant active caps was not significant. Sensory evaluation and removal torque tests validated the suitability of the antioxidant active plastic bottle caps in industrial application. The antioxidant activity increased with a greater concentration of BHA and BHT incorporated in both antioxidant active caps (p < 0.05) and with more impact on the BHA cap compared to BHT cap in terms of antioxidant activity. Migration experiments for 10 days at 40 °C and 2 h at 70 °C showed that active antioxidants in the plastic bottle cap were more easily released into fatty foods and milk products that are highly sensitive to oxidation, and the migration of BHA and BHT did not exceed the maximum amount specified in (EC) No 1333/2008 (<200 mg/kg). As such, the antioxidant active plastic bottle caps inhibited oxidation, thereby ensuring higher food quality.

scholarly journals Antibacterial and Antioxidant Activities of Nasturtium officinale Essential Oil on Food Borne Bacteria

2019 ◽  
Vol 13 (1) ◽  
pp. 81-85 ◽  
Author(s):  
Saman Mahdavi ◽  
Mojtaba Kheyrollahi ◽  
Hossein Sheikhloei ◽  
Alireza Isazadeh
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Food Industry ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Gastrointestinal Diseases ◽  
Gas Chromatography Mass Spectrometry ◽  
Nasturtium Officinale ◽  
Microdilution Method ◽  
Food Borne

Introduction: The use of synthetic preservatives has been increasing in the food industry, and this leads to an increased incidence of gastrointestinal diseases and cancers in humans in the long run. Aims & Objectives: The aim of this study was to investigate the antibacterial and antioxidant activities of Nasturtium officinale essential oil on some important food borne bacteria. Materials & Methods: In this study, the antibacterial activity of N. officinale essential oil was evaluated on Staphylococcus aureus, Bacillus cereus, Escherichia coli and Salmonella enteric by microdilution method. Also, the antioxidant activity of this essential oil was evaluated by inactivating free radicals produced by 2,2-diphenyl-1-picrylhydrazyl (DPPH). Finally, the chemical compounds of the N. officinale essential oil were evaluated by gas chromatography- mass spectrometry (GC/MS). Results: The results showed that S. enteric and E. coli isolates had the most resistance and B. cereus isolates had the most susceptibility to N. officinale essential oil. The evaluation of antioxidant properties showed that in the same concentrations, the antioxidant effect of N. officinale was less than BHT. The obtained results from GC/MS showed that Phytol (30.20%) was the highest proportion and Megastigmatrienone 2 (0.18%) was the lowest proportion of essential oil. Conclusion: In general, the results of this study showed that N. officinale essential oil has an appropriate antibacterial activity against gram positive bacteria and can be used as a new antibacterial and antioxidant compound in the food industry.

scholarly journals Origanum majorana L. Essential Oil-Associated Polymeric Nano Dendrimer for Antifungal Activity against Phytophthora infestans

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1446 ◽  
Author(s):  
Vu Minh Thanh ◽  
Le Minh Bui ◽  
Long Giang Bach ◽  
Ngoc Tung Nguyen ◽  
Hoa Le Thi ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Essential Oil ◽  
Phytophthora Infestans ◽  
Electron Spectroscopy ◽  
Gas Chromatography Mass Spectrometry ◽  
Resonance Spectroscopy ◽  
Transmission Electron ◽  
Ft Ir ◽  
Origanum Majorana ◽  
Tga Analysis

In this study, the introduction of Origanum majorana L. essential oil into a polyamidoamine (PAMAM) G4.0 dendrimer was performed for creation of a potential nanocide against Phytophthora infestans. The characteristics of marjoram oil and PAMAM G4.0 was analyzed using transmission electron spectroscopy (TEM), nuclear magnetic resonance spectroscopy (1H-NMR) and gas chromatography mass spectrometry (GC-MS). The success of combining marjoram oil with PAMAM G4.0 was evaluated by FT-IR, TGA analysis, and the antifungal activity of this system was also investigated. The results showed that the antifungal activity of oil/PAMAM G4.0 was high and significantly higher than only PAMAM G4.0 or marjoram essential oil. These results indicated that the nanocide oil/PAMAM G4.0 helped strengthen and prolong the antifungal properties of the oil.

scholarly journals Trachyspermum ammi aromatic water: A traditional drink with considerable anti-Candida activity

2020 ◽  
Author(s):  
Ali Arabi Monfared ◽  
Seyyed Amin Ayatolahi Mousavi ◽  
Kamiar Zomorodian ◽  
Davood Mehrabani ◽  
Aida Iraji ◽  
...  
Keyword(s):  
Essential Oil ◽  
Candida Species ◽  
Biofilm Formation ◽  
Clinical Laboratory ◽  
Antioxidant Properties ◽  
Water Soluble ◽  
Gas Chromatography Mass Spectrometry ◽  
Therapeutic Trial ◽  
Antifungal Activities ◽  
Trachyspermum Ammi

Background and Purpose: Aromatic waters (AWs) are therapeutic distillates, which harbor both essential oil and water-soluble components of a plant. Due to the dispersion of the light amount of essence through the AWs, they have their specific pleasant smell, taste, and medicinal properties. In Iranian traditional medicine, Trachyspermum ammi AW is used to treat gastrointestinal disorders. The present study was conducted to determine the chemical composition of the essential oil extracted from T. ammi AW and its antifungal activities against Candida species. Materials and Methods: The composition of the essential oil extracted from T. ammi AW was analyzed by gas chromatography-mass spectrometry. In addition, the evaluation of the antifungal activity of AW against Candida species was performed using broth microdilution methods as recommended by the Clinical Laboratory Standard Institute. Moreover, the biofilm formation inhibition, antioxidant properties, and experimental activity of AW were determined in an animal model. Results: According to the results, thymol (78.08%) was the major compound of EO, followed by carvacrol (8.20%) and carvotanacetone (6.50%). Furthermore, T. ammi AW exhibited antifungal activities against the examined fungi and inhibited the biofilm formation of C. albicans at a concentration of up to 0.25 V/V. Histopathological analyses revealed that Candida colonization declined in the mice following the administration of T. ammi AW in a therapeutic trial. Conclusion: It seems that the presence of phenolic monoterpenes in AW has resulted in antifungal effects. Pleasant odor and antioxidant properties are extra bonuses to the antimicrobial effects of this plant. Based on the findings, AW might have the potential to be used in the management of alimentary candidiasis or oral hygienic products. 

scholarly journals Chemical composition, antimicrobial and antioxidant properties of Mentha longifolia (L.) Huds. essential oil

2012 ◽  
Vol 2 (3) ◽  
pp. 192-200 ◽  
Author(s):  
Haris Nikšić ◽  
Elvira Kovač Bešović ◽  
Elma Makarević ◽  
Kemal Durić
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Gas Chromatography Mass Spectrometry ◽  
Radical Scavenging Capacity ◽  
Scavenging Capacity ◽  
Mentha Longifolia ◽  
Layer Chromatography

Introduction: Present study describes the antimicrobial activity and free radical scavenging capacity (RSC) of essential oil from Mentha longifolia (L.) Huds. Aim of this study to investigate the quality, antimicrobial andantioxidant activity of wild species Mentha longifolia essential oil from Bosnia and Herzegovina.Methods: The chemical profi le of essential oil was evaluated by the means of gas chromatography-mass spectrometry (GC-MS) and thin-layer chromatography (TLC). Antimicrobial activity was tested against 6bacterial strains. RSC was assessed by measuring the scavenging activity of essential oils on 2,2- diphenyl-1-picrylhydrazil (DPPH).Results: The main constituents of the essential oil of M. longifoliae folium were oxygenated monoterpenes,piperitone oxide (63.58%) and 1,8-cineole (12.03%). Essential oil exhibited very strong antibacterial activity.The most important antibacterial activity essential oil was expressed on Gram negative strains: Escherichia coli, Pseudomonas aerginosa and Salmonella enterica. subsp.enterica serotype ABONY. Antioxidant activity was evaluated as a RSC. Investigated essential oil was able to reduce DPPH radicals into the neutral DPPHH form (IC50=10.5 μg/ml) and this activity was dose –dependent.Conclusion: The study revealed signifi cant antimicrobial activity of the investigated essential oil. The examined oil exhibited high RSC, which was found to be in correlation to the content of mainly monoterpeneketones and aldehydes. These results indicate that essential oils could serve as safe antioxidant and antiseptic supplements in pharmaceuticals.

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