Chemical composition and radical scavenging activity of Amygdalus pedunculata Pall leaves' essential oil

2018 ◽  
Vol 119 ◽  
pp. 368-374 ◽  
Author(s):  
Cairui Lu ◽  
Haoyu Li ◽  
Cong Li ◽  
Bang Chen ◽  
Yehua Shen
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Scavenging Activity

scholarly journals Mangifera indica Bark Essential Oil: Chemical Composition and Biological Activities in Comparison with Aqueous and Ethanol Extracts

2018 ◽  
Vol 13 (7) ◽  
pp. 1934578X1801300
Author(s):  
Gislaine Aurelie Kemegne ◽  
Maximilienne Ascension Nyegue ◽  
Sylvain Leroy Sado Kamdem ◽  
François-Xavier Etoa ◽  
Chantal Menut
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Radical Scavenging Activity ◽  
Mangifera Indica ◽  
Radical Scavenging ◽  
Antimicrobial Properties ◽  
Scavenging Activity ◽  
Total Phenols ◽  
Dpph Method ◽  
Ethanol Extracts

Ethnobotanic surveys have revealed the use of Mangifera indica L. (Anacardiaceae) bark for the treatment of infectious diarrhea. The essential oil of M. indica bark is described for the first time for its chemical composition, radical scavenging activity (DPPH method) and antimicrobial properties. The total phenols content of its water and ethanol bark extracts as well as their radical scavenging and antimicrobial properties were also evaluated. Four commercial plant extracts were also studied for a comparison purpose. The antimicrobial activities were measured for all samples against three Gram (-): Escherichia coli, Salmonella enteritidis, Shigella and two Gram (+): Staphylococcus aureus and Bacillus cereus bacteria. The M. indica bark essential oil was characterized by the association of two major sesquiterpenes: ( E)-β-caryophyllene (60.3%) and α-humulene (36.7%). It presented the lowest ratio of concentration to inhibition zone diameter on all the strains. The aqueous and ethanol extracts of M. indica bark were characterized by high contents of total phenols compounds and high radical scavenging activity compared to the essential oil. Finally, the interesting combination of the antibacterial and antiradical activities of the aqueous M. indica bark extract justifies the traditional use of this plant part in decoction form for the treatment of diarrheal infections.

scholarly journals Artemisia dracunculus Essential Oil Chemical composition and antioxidant properties

2019 ◽  
Vol 70 (1) ◽  
pp. 59-62 ◽  
Author(s):  
Ariadna Petronela Fildan ◽  
Ioan Pet ◽  
Daniela Stoin ◽  
Gabriel Bujanca ◽  
Alexandra Teodora Lukinich-Gruia ◽  
...  
Keyword(s):  
Free Radical ◽  
Chemical Composition ◽  
Essential Oil ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Artemisia Dracunculus

Free radical scavenging activity, total phenolic content and the chemical composition of the essential oil isolated by steam distillation from Artemisia dracunculus L. was investigated. The isolation yield was 0.24% (v/w) based on the fresh plant material (leaves). GC-MS investigation identified 21 components, accounting 99.93% of the total amount. The major components were sabinene (42.38%), isoelemicin (12.91%), methyl eugenol (9.09%), elemicin (7.95%) and beta-ocimene (6.46%). The free radical scavenging activity of the essential oil of Artemisia dracunculus L. was evaluated in vitro by the DPPH assay (IC50 = 0.730 � 0.213 mg/mL), BHA and alpha-tocopherol were used as a positive control. The total phenolic content of the tarragon essential oil was evaluated by the Folin-Ciocalteu method (GAE = 0.451 � 0.001 mg/g sample). In view of these data, we consider that tarragon essential oil could represent a new antioxidants source as a reliable option to reduce the usage of synthetic additives.

scholarly journals Chemical Composition and Antioxidant Activity of the Essential Oil from Hedeoma mandoniana Grown in Cuzco

2018 ◽  
Vol 13 (12) ◽  
pp. 1934578X1801301
Author(s):  
Leoncio Solis-Quispe ◽  
Jorge A. Solis-Quispe ◽  
Ciro Tomaylla-Cruz ◽  
Luz J. Aragon-Alencastre ◽  
José L. Rodríguez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Volatile Compounds ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Scavenging Activity ◽  
Aerial Parts

The chemical composition of the essential oil from aerial parts of Hedeoma mandoniana Wedd. grown in Cuzco was studied. A total of 125 volatile compounds were identified in the essential oil, of which the most prominent were pulegone (35.3%), trans-menthone (9.8%) and limonene (9.2%). The essential oil had a low radical-scavenging activity determined by the ABTS method.

scholarly journals Chemical Composition and Radical Scavenging Activity of Citrus Limon Peel Essential Oil

2017 ◽  
Vol 33 (1) ◽  
pp. 458-461 ◽  
Author(s):  
Mona Ghoorchibeigi ◽  
Kambiz Larijani ◽  
Parviz Aberoomand Azar ◽  
Karim Zare ◽  
Iraj Mehregan
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Citrus Limon ◽  
Scavenging Activity

Chemical Composition, Antibacterial, Insecticidal and Anti-Oxidant Activities of Three Acantholimon Species (A. atropatanum, A. gilliatii and A. tragacanthium)

2020 ◽  
Vol 10 (3) ◽  
pp. 272-278
Author(s):  
Ardalan Pasdaran ◽  
Satyajit D. Sarker ◽  
Lutfun Nahar ◽  
Azadeh Hamedi
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Main Compound ◽  
Aerial Parts ◽  
Anti Oxidant ◽  
Gas Chromatography Mass Spectroscopy

Background: The essential oil from the Acantholimon genus have been an integral part of the traditional food additive in Middle East. Most of the plants in Acantholimon genus have not been studied scientifically. The aim of this study is to investigate the chemical composition, antibacterial, insecticidal and anti-oxidant activities of three Acantholimon species including Acantholimon atropatanum, A. gilliatii and A. tragacanthium. Method: The essential oils of the aerial parts were extracted by hydrodistillation. Chemical constitutions were identified by gas chromatography- mass spectroscopy technique, also their toxicities were assessed against the two important grain products pests, Oryzeaphilus mercator and Tribolium castaneum. Antibacterial activity was assessed against the three foodborne bacteria that include Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus based on the disc diffusion assay. Free-radical-scavenging property was identified based on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. Results: 2-hexahydrofarnesyl acetone was the main compound in A. gilliatii and A. tragacanthium, whilst farnesyl acetone, heptacosane and germacrene D were the principal components of A. atropatanum essential oil. These oils exhibited 40-90% mortality of O. mercator and/or T. castaneum at a dose of 12 μl/l air after 48h of exposure, and exhibited significant free-radicalscavenging property (RC50 = 3.7 × 10-3 - 8.3 × 10-3 mg/ml). The oils of A. tragacanthium and A. gilliatii showed a weaker antibacterial activity compared to A. atropatanum. Conclusion: A. atropatanum, A. gilliatii and A. tragacanthium essential oils had significant insecticidal and anti-oxidant properties. They also showed week to moderate antibacterial activity against P. aeruginosa and S. aureus.

scholarly journals Suggestions on the Contribution of Methyl Eugenol and Eugenol to Bay Laurel (Laurus nobilis L.) Essential Oil Preservative Activity through Radical Scavenging

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2342
Author(s):  
Nikolaos Nenadis ◽  
Maria Papapostolou ◽  
Maria Z. Tsimidou
Keyword(s):  
Essential Oil ◽  
Radical Scavenging Activity ◽  
Pearson Correlation ◽  
Radical Scavenging ◽  
Methyl Eugenol ◽  
Partial Least Square ◽  
Least Square ◽  
Partial Least Square Regression ◽  
Positive Contribution ◽  
Scavenging Activity

The present study examined the radical scavenging potential of the two benzene derivatives found in the bay laurel essential oil (EO), namely methyl eugenol (MEug) and eugenol (Eug), theoretically and experimentally to make suggestions on their contribution to the EO preservative activity through such a mechanism. Calculation of appropriate molecular indices widely used to characterize chain-breaking antioxidants was carried out in the gas and liquid phases (n-hexane, n-octanol, methanol, water). Experimental evidence was based on the DPPH• scavenging assay applied to pure compounds and a set of bay laurel EOs chemically characterized with GC-MS/FID. Theoretical calculations suggested that the preservative properties of both compounds could be exerted through a radical scavenging mechanism via hydrogen atom donation. Eug was predicted to be of superior efficiency in line with experimental findings. Pearson correlation and partial least square regression analyses of the EO antioxidant activity values vs. % composition of individual volatiles indicated the positive contribution of both compounds to the radical scavenging activity of bay laurel EOs. Eug, despite its low content in bay laurel EOs, was found to influence the most the radical scavenging activity of the latter.

scholarly journals Radical scavenging and antimicrobial activity of essential oil and extracts of Echinophora sibthorpiana Guss. from Macedonia

2014 ◽  
Vol 66 (1) ◽  
pp. 401-413 ◽  
Author(s):  
Ksenija Mileski ◽  
Ana Dzamic ◽  
Ana Ciric ◽  
Slavica Grujic ◽  
M. Ristic ◽  
...  
Keyword(s):  
Essential Oil ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antimicrobial Properties ◽  
Ethanol Extract ◽  
Antimicrobial Effect ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Aerial Parts ◽  
Positive Controls

This study was undertaken to determine the antioxidant and antimicrobial effect of essential oil and extracts of Echinophora sibthorpiana Guss. (fam. Apiaceae) collected in Macedonia. The chemical composition of E. sibthorpiana essential oil was characterized by the presence of methyl eugenol (60.40%), p-cymene (11.18%) and ?-phellandrene (10.23%). The free radical scavenging activity of extracts and essential oil was evaluated by DPPH and ABTS assays. The aqueous extract of aerial parts exhibited the strongest scavenging activity (IC50=1.67 mg/ml); results of the ABTS test showed that the most effective was the ethanol extract of aerial parts (1.11 mg vit. C/g). The essential oil showed stronger antioxidant activity compared to hydroxyanisole, ascorbic acid and quercetin that were used in the DPPH and ABTS tests, respectively. The total phenolic and flavonoid concentrations in the extracts ranged between 38.65-60.72 mg GA/g, and 3.15-19.00 mg Qu/g, respectively. The antimicrobial properties of the extracts and essential oil were investigated using a micro-well dilution technique against human pathogenic strains. The results were comparable with the effects of the positive controls, streptomycin and fluconazole. These findings indicate that E. sibthorpiana extracts and oil can be used in preventive treatments and as an alternative for synthetic preservatives.

Chemical Composition of Essential Oil, Antioxidant, Antidiabetic, Anti-obesity, and Neuroprotective Properties of Prangos gaubae

2017 ◽  
Vol 12 (12) ◽  
pp. 1934578X1701201 ◽  
Author(s):  
Mir Babak Bahadori ◽  
Gokhan Zengin ◽  
Shahram Bahadori ◽  
Filippo Maggi ◽  
Leila Dinparast
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Skin Diseases ◽  
Biological Activities ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Volatile Components ◽  
Total Antioxidant ◽  
Pharmaceutical Industries

Chemical composition of essential oil and the potential of Prangos gaubae for the management of public health problems such as Alzheimer's disease, obesity, Diabetes mellitus, and skin diseases were evaluated for the first time. In this direction, enzyme inhibitory effects, antioxidant activity, and total bioactive contents of the plant were determined. EO showed high acetylcholinesterase (2.97 mg GEs/g oil), α-amylase (1.35 mmol ACEs/g oil), α-glucosidase (38.84 mmol ACEs/g oil), and lipase (1.59 mmol OEs/g oil) inhibitory activities. Moreover, strong antioxidant effects were observed in antiradical (DPPH and ABTS), reducing power (CUPRAC and FRAP), total antioxidant, and metal chelating assays. Methanol extract exhibited promising DPPH radical scavenging activity (0.47 mmol TEs/g extract) and also high reducing power in CUPRAC (0.89 mmol TEs/g extract) and FRAP (0.52 mmol TEs/g extract) assays. All extracts showed low total flavonoid but high total phenolics content. Furthermore, they exhibited strong skin-care effect in tyrosinase inhibition assay. EO analysis showed the presence of germacrene D (26.7%), caryophyllene oxide (14.3%), ( E)-caryophyllene (13.8%), and spathulenol (11.3%) as the major volatile components. Results indicated that P. gaubae has promising potential for possible uses in food, cosmetic, and pharmaceutical industries due to its valuable phytoconstituents and biological activities.

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