scholarly journals Characterization of chemical compositions by a GC-MS/MS approach and evaluation of antioxidant activities of essential oils from Cinnamomum reticulatum Hay, Leptospermum petersonii Bailey, and Juniperus formosana Hayata

2021 ◽  
pp. 103609
Author(s):  
Yuanhang Li ◽  
Xinxin Cao ◽  
Jing Sun ◽  
Wanqi Zhang ◽  
Jin Zhang ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antioxidant Activities ◽  
Chemical Compositions

Chemical variability and antioxidant activities of the essential oils of the aerial parts of Ammoides verticillata and the roots of Carthamus caeruleus and their synergistic effect in combination

2020 ◽  
Vol 23 ◽  
Author(s):  
Imane Rihab Mami ◽  
Noria Merad-Boussalah ◽  
Mohammed El Amine Dib ◽  
Boufeldja Tabti ◽  
Jean Costa ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Natural Food ◽  
Chemical Compositions ◽  
Chemical Variability ◽  
Ammoides Verticillata

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.

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

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).

scholarly journals Chemical Compositions and Antimicrobial and Antioxidant Activities of the Essential Oils from Magnolia grandiflora, Chrysactinia mexicana, and Schinus molle Found in Northeast Mexico

2013 ◽  
Vol 8 (1) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Laura Guerra-Boone ◽  
Rocío Álvarez-Román ◽  
Ricardo Salazar-Aranda ◽  
Anabel Torres-Cirio ◽  
Verónica Mayela Rivas-Galindo ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Principal Component ◽  
Gas Chromatography Mass Spectrometry ◽  
Bornyl Acetate ◽  
Chemical Compositions ◽  
Magnolia Grandiflora ◽  
Schinus Molle ◽  
Main Component

The essential oils from Magnolia grandiflora and Chrysactinia mexicana leaves, and from Schinus molle leaves and fruit, were characterized by gas chromatography/flame-ionization detection and gas chromatography/mass spectrometry. Twenty-eight compounds from M. grandiflora leaves were identified (representing 93.6% of the total area of the gas chromatogram), with the major component being bornyl acetate (20.9%). Colorless and yellow oils were obtained from the C. mexicana leaves with 18 (86.7%) and 11 (100%) compounds identified, respectively. In both fractions, the principal component was sylvestrene (36.8% and 41.1%, respectively). The essential oils of S. molle leaves and fruit were each separated into colorless and yellow fractions, in which 14 (98.2) and 20 (99.8%) compounds were identified. The main component was α-phellandrene in all fractions (between 32.8% and 45.0%). The M. grandiflora oil displayed antifungal activity against five dermatophyte strains. The oils from S. molle and M. grandiflora leaves had antimicrobial activity against Staphylococcus aureus and Streptococcus pyogenes, which cause skin infections that potentially may lead to sepsis. However, the antioxidant activities of all oils were small (half maximal effective concentration values >250 μg/mL).

Compositions and Biological Activities of Essential Oils of Kadsura longepedunculata and Schisandra sphenanthera

2007 ◽  
Vol 35 (02) ◽  
pp. 353-364 ◽  
Author(s):  
Lei Song ◽  
Jie-Ying Ding ◽  
Cui Tang ◽  
Chun-Hua Yin
Keyword(s):  
Essential Oils ◽  
Antioxidant Activities ◽  
Biological Activities ◽  
Liver Homogenate ◽  
Reducing Power ◽  
Antimicrobial Activities ◽  
Dilution Method ◽  
Chemical Compositions ◽  
Dependent Manner ◽  
Schisandra Sphenanthera

The chemical compositions, antimicrobial activities, antioxidant activities and cytotoxicities of the essential oils isolated from the root of Kadsura longepedunculata Finet et Gagnep (KLREO) and the fruit of Schisandra sphenanthera Rehd. et Wills. (SSFEO) were investigated.The analyses of gas chromatography-mass spectrometry (GC-MS) showed that cadinane type compounds and their derivatives were rich in both oils (54.2% and 39.7%, respectively) and δ-cadinene was the major component of both oils (13.8% and 25.6%, respectively). The antimicrobial activities of both oils were evaluated against five microorganisms with the disc diffusion and the broth micro-dilution method. Results showed that Gram-positive bacteria were more sensitive to both oils than Gram-negative bacteria and the yeast. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the oil of KLREO were lower than those of SSFEO, indicating that the former possessed slightly stronger antibacterial capability than the latter. The reducing power and lipid peroxidation assays were employed to study the potential antioxidant activities of both oils. Both oils remarkably decreased the content of malondialdehyde (MDA) in rat liver homogenate in a dose dependent manner. The antioxidant activities of KLREO appeared to be more potent than that of SSFEO. The oils of KLREO and SSFEO exhibited concentration-dependent cytotoxicities and were proved to be toxic to HepG2 cells with IC50 of 147 and 189 μg/ml, respectively.

scholarly journals Chemical compositon, antibacterial and antioxidant activities of Cnidium silaifolium ssp. orientale (Boiss.) Tutin essential oils

2021 ◽  
Vol 72 (2) ◽  
pp. e403
Author(s):  
A.E. Karadağ ◽  
B. Demirci ◽  
Ö. Çeçen ◽  
F. Tosun ◽  
F. Demirci
Keyword(s):  
Essential Oils ◽  
Antioxidant Activities ◽  
Chemical Compositions ◽  
Significant Activity ◽  
Gram Positive Bacteria ◽  
Microdilution Method ◽  
Aerial Parts ◽  
Germacrene D ◽  
Different Parts

The chemical compositions of the essential oils (EOs) obtained by hydrodistillation from different parts of Cnidium silaifolium ssp. orientale (Boiss.) Tutin were analyzed both by GC-FID and GC/MS, simultaneously. One hundred nine compounds representing 90.1% of the total volatiles in the EOs were identified with the main characteristic compounds α-pinene (50.3%) in the root, germacrene D (20.3%) in the fruit, and β-caryophyllene (18.7%) in the aerial parts of C. silaifolium ssp. orientale. The antimicrobial activity against human pathogenic Gram-negative and Gram-positive bacteria was evaluated by the in vitro microdilution method. Antibacterial succeptibility was observed from the root and aerial part EOs against Staphylococcus aureus (0.039 and 0.156 mg/mL, respectively); while the fruit EO was most effective against Bacillus cereus at 0.07 mg/mL. The antioxidant capacities of the EOs were also evaluated by in vitro DPPH• and ABTS•+ scavenging assays, where no significant activity was observed compared to ascorbic acid and Trolox.

scholarly journals Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Hong Wu ◽  
Jilie Li ◽  
Yuan Jia ◽  
Zhihong Xiao ◽  
Peiwang Li ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Oil Quality ◽  
Antimicrobial Activities ◽  
Oil Yield ◽  
Chemical Compositions ◽  
Extraction Temperature ◽  
Experimental Conditions ◽  
Essential Oil Yield

To improve essential oil quality, especially to reserve the thermal instability of compounds, supercritical CO2 extraction (SFE) was applied to recover essential oil from Cymbopogon citronella leaves. A response surface methodology was applied to optimize the extraction process. The highest essential oil yield was predicted at extraction time 120  min, extraction pressure 25  MPa, extraction temperature 35°C, and CO2 flow 18  L/h for the SFE processing. Under these experimental conditions, the mean essential oil yield is 4.40%. In addition, the chemical compositions of SFE were compared with those obtained by hydrodistillation extraction (HD). There were 41 compounds obtained of SFE, while 35 compounds of HD. Alcohols and aldehydes were the main compositions in the essential oils. Furthermore, the antioxidant activities and antimicrobial of essential oils obtained by HD and the evaluated condition of SFE were compared. Results showed that the antioxidant activities of SFE oil are better than those of HD. Minimum inhibitory concentrations (MICs) were determined by the microdilution method. Essential oil obtained from SFE and HD exhibited a significant antimicrobial activity against all tested microorganisms. It is confirmed that the SFE method can be an alternative processing method to extract essential oils from Cymbopogon citronella leaves.

The chemical composition, antimicrobial, and antioxidant activities of Pycnocycla spinosa and Pycnocyla flabellifolia essential oils

2016 ◽  
Vol 71 (11-12) ◽  
pp. 403-408 ◽  
Author(s):  
Mohaddese Mahboubi ◽  
Elaheh Mahdizadeh ◽  
Rezvan Heidary Tabar
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Inhibition Zone ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Dilution Assay ◽  
Main Components ◽  
Broth Dilution

Abstract The purpose of our study was to compare the chemical compositions and antimicrobial and antioxidant activities of Pycnocycla spinosa and Pycnocycla flabellifolia essential oils. cis-Asarone (62.5%) and widdra-2,4(14)-diene (9%) were the main components of P. spinosa aerial part essential oil, while elemicin (60.1%) and caryophyllene oxide (9.8%) were the main components of P. spinosa seed essential oil. α-Phellandrene (25.5%), p-cymene (15.3%), and limonene (13.3%) were found in P. flabellifolia essential oil. The inhibition zone diameters for P. flabellifolia essential oil were significantly higher than for the two other essential oils from P. spinosa (p<0.05). In broth dilution assay (µL/mL), the sensitive microorganism to Pycnocycla sp. (P. spinosa, P. flabellifolia) was Aspergillus niger, followed by Candida albicans. In 2,2-diphenyl-1-picrylhydrazyl (DPPH) system, P. spinosa aerial parts essential oil (IC50=548 µg/mL) had higher antioxidant activity than that of two other essential oils.

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