Chemical composition, antibacterial and antioxidant activity of essential oil of Eupatorium adenophorum Spreng. from Eastern Uttar Pradesh, India

2014 ◽  
Vol 7 ◽  
pp. 80-87 ◽  
Author(s):  
Abhay K. Pandey ◽  
Manindra Mohan ◽  
Pooja Singh ◽  
Uma T. Palni ◽  
N.N. Tripathi
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Uttar Pradesh ◽  
Eupatorium Adenophorum ◽  
Eupatorium Adenophorum Spreng ◽  
Eastern Uttar Pradesh ◽  
Antibacterial And Antioxidant Activity

scholarly journals Chemical Composition and Antibacterial and Antioxidant Activity of a Citrus Essential Oil and Its Fractions

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2888
Author(s):  
Carmen M. S. Ambrosio ◽  
Gloria L. Diaz-Arenas ◽  
Leidy P. A. Agudelo ◽  
Elena Stashenko ◽  
Carmen J. Contreras-Castillo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Biological Activities ◽  
E Coli ◽  
Beneficial Bacterium ◽  
Minor Compounds ◽  
Antibacterial And Antioxidant Activity ◽  
High Relative Amount

Essential oils (EOs) from Citrus are the main by-product of Citrus-processing industries. In addition to food/beverage and cosmetic applications, citrus EOs could also potentially be used as an alternative to antibiotics in food-producing animals. A commercial citrus EO—Brazilian Orange Terpenes (BOT)—was fractionated by vacuum fractional distillation to separate BOT into various fractions: F1, F2, F3, and F4. Next, the chemical composition and biological activities of BOT and its fractions were characterized. Results showed the three first fractions had a high relative amount of limonene (≥10.86), even higher than the whole BOT. Conversely, F4 presented a larger relative amount of BOT’s minor compounds (carvone, cis-carveol, trans-carveol, cis-p-Mentha-2,8-dien-1-ol, and trans-p-Mentha-2,8-dien-1-ol) and a very low relative amount of limonene (0.08–0.13). Antibacterial activity results showed F4 was the only fraction exhibiting this activity, which was selective and higher activity on a pathogenic bacterium (E. coli) than on a beneficial bacterium (Lactobacillus sp.). However, F4 activity was lower than BOT. Similarly, F4 displayed the highest antioxidant activity among fractions (equivalent to BOT). These results indicated that probably those minor compounds that detected in F4 would be more involved in conferring the biological activities for this fraction and consequently for the whole BOT, instead of the major compound, limonene, playing this role exclusively.

scholarly journals Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

2021 ◽  
Vol 319 ◽  
pp. 01052
Author(s):  
Brahim Outemsaa ◽  
Asmaa Oubihi ◽  
Hassna Jaber ◽  
Sara Haida ◽  
Ikram Kenfaoui ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Staphylococcus Epidermidis ◽  
Antimicrobial Activities ◽  
Sensory Profile ◽  
Illicium Verum ◽  
The Impact ◽  
Antibacterial And Antioxidant Activity

In recent years, a concern has been expressed about the impact of antibiotics and synthetic antioxidants, which are used to inhibit microbial growth and retard fat oxidation in foods. In addition, antibiotic resistance presents a serious menace to human and environmental ecosystems. This has led the food industry to use natural resources such as essential oils in the preparation of foods, this forming their sensory profile and increasing preservation time there. The objective of this work is to determine the chemical composition and evaluate the antibacterial and antioxidant activity of the essential oil of Illicium verum. The yield of essential oil extracted by hydro distillation is about 4.13%. The chemical composition of the essential oil extracted from the dried fruits of Illicium verum was studied by gas chromatography coupled with mass spectrometry (GC and GC/MS). Twenty-eight constituents, representing 99.74% of the essential oil were identified. The major compounds are: trans-anethole (83.46%), D-Limonene (4.56%), Estragole (3.47%) and Linalool (1.07%). Antioxidant activity was determined by the DPPH assay. The essential oils of Illicium verum showed low antioxidant activity with IC50= 286.19 ± 7.4 mg/mL, compared to Ascorbic acid IC50= 0.09 ± 0.01 mg/mL. The antibacterial effect of this essential oil was tested against six microorganisms, of which Staphylococcus aureus is the most sensitive with an MIC of about 1/1000 (v/v), followed by Staphylococcus epidermidis and Enterobacter cloacae with an MIC equal to 1/100 (v/v).

scholarly journals Chemical Composition, In Vitro and In Silico Antioxidant Potential of Melissa officinalis subsp. officinalis Essential Oil

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1081
Author(s):  
Matilda Rădulescu ◽  
Călin Jianu ◽  
Alexandra Teodora Lukinich-Gruia ◽  
Marius Mioc ◽  
Alexandra Mioc ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
In Silico ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Inhibitory Effect ◽  
Melissa Officinalis ◽  
Β Carotene

The investigation aimed to study the in vitro and in silico antioxidant properties of Melissa officinalis subsp. officinalis essential oil (MOEO). The chemical composition of MOEO was determined using GC–MS analysis. Among 36 compounds identified in MOEO, the main were beta-cubebene (27.66%), beta-caryophyllene (27.41%), alpha-cadinene (4.72%), caryophyllene oxide (4.09%), and alpha-cadinol (4.07%), respectively. In vitro antioxidant properties of MOEO have been studied in 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging, and inhibition of β-carotene bleaching assays. The half-maximal inhibitory concentration (IC50) for the radical scavenging abilities of ABTS and DPPH were 1.225 ± 0.011 μg/mL and 14.015 ± 0.027 μg/mL, respectively, demonstrating good antioxidant activity. Moreover, MOEO exhibited a strong inhibitory effect (94.031 ± 0.082%) in the β-carotene bleaching assay by neutralizing hydroperoxides, responsible for the oxidation of highly unsaturated β-carotene. Furthermore, molecular docking showed that the MOEO components could exert an in vitro antioxidant activity through xanthine oxidoreductase inhibition. The most active structures are minor MOEO components (approximately 6%), among which the highest affinity for the target protein belongs to carvacrol.

scholarly journals Evaluation of Vegetative Growth, Chemical Composition, and Antioxidant Capacity of Essential Oil of Peppermint Under Water Regimes

2019 ◽  
Vol 11 (4) ◽  
pp. 197
Author(s):  
Diogo Mendes da Silva ◽  
Suzan Kelly Vilela Bertolucci ◽  
Smail Aazza ◽  
Alexandre Alves de Carvalho ◽  
Simony Carvalho Mendonça ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Water Stress ◽  
Chemical Composition ◽  
Essential Oil ◽  
Water Availability ◽  
Vegetative Growth ◽  
Dry Matter ◽  
Field Capacity ◽  
Mentha Piperita

The purpose of the present work was to evaluate the vegetative growth of Mentha piperita L. cultivated under different water availability, as well its influence in content, chemical composition and in vitro antioxidant activity of its essential oil. Plants were propagated by mother plants microcutting and scions were transplanted to 5 L pots with soil and cattle manure. Afterward, were kept at field capacity for 30 days and under treatment for 40 days. It was treated with different levels of water deficit treatments: (T1): 100 of field capacity (FC); (T2): 80 of FC; (T3): 60 of FC; (T4) 40 of FC with 5 blocks. Vegetative growth was evaluated by dry matter contents of all part of plants and by root/aerial rate. The essential oil of the leaves was extracted by hydrodistillation, analyzed by GC-FID and GC-MS and in vitro antioxidant potential was evaluated. A significant decrease in the dry matter of leaves and stems accompanied with a decrease in the roots dry matter was observed with an increase in the water stress. Quantitative chemical differences were observed in the chemical composition of the essential oil, according water availability. Total antioxidant activity showed a gradual increase as water stress progressed.

Chemical Composition and Antioxidant Activity of the Leaf Essential Oil of Schefflera venulosa

2021 ◽  
Author(s):  
Sudipta Jena ◽  
Asit Ray ◽  
Ambika Sahoo ◽  
Pradeep Kumar Kamila ◽  
Sanghamitra Nayak ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Leaf Essential Oil
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