scholarly journals Comparison of Chemical Composition and Antioxidant Activity of Essential Oil of Gum-Resin Obtained from Juniperus excelsa and Boswellia sacra

2017 ◽  
Vol 29 (11) ◽  
pp. 2570-2574
Author(s):  
Amani Al-Riyami ◽  
Nawal Al-Manthary ◽  
Saleh N. Al-Busafi ◽  
Salim H. Al-Saidi
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Juniperus Excelsa ◽  
Boswellia Sacra

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 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 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

scholarly journals Chemical composition and antioxidant activity in the essential oil of Cinnamomum zeylanicum Nees with medicinal interest

2020 ◽  
Vol 14 (7) ◽  
pp. 326-330
Author(s):  
P. R. E. Ribeiro ◽  
I. F. Montero ◽  
S. A. M. Saravia ◽  
V. P. Ferraz ◽  
R. A. Santos ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Cinnamomum Zeylanicum

Chemical composition, antioxidant activity and cytotoxicity on tumour cells of the essential oil from flowers of Magnolia grandiflora cultivated in Iran

2017 ◽  
Vol 31 (24) ◽  
pp. 2857-2864 ◽  
Author(s):  
Mohammad Reza Morshedloo ◽  
Luana Quassinti ◽  
Massimo Bramucci ◽  
Giulio Lupidi ◽  
Filippo Maggi
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Tumour Cells ◽  
Magnolia Grandiflora

scholarly journals Antioxidant Activity and Chemical Composition of Essential Oils from Schinus Fasciculata (Griseb.) I.M. Johnst and S. Praecox (Griseb.) Speg

2008 ◽  
Vol 3 (9) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Ana P. Murray ◽  
Silvana A. Rodriguez ◽  
María G. Murray
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Radical Scavenger ◽  
Natural Environments ◽  
Dpph Assay ◽  
Reference Compound ◽  
Fresh Material ◽  
Phenological Phases

Schinus fasciculata and S. praecox (Anacardiaceae) can be found among the characteristic vegetation components of the phytogeographic province of the Espinal. The essential oils from these two species have been obtained from fresh material by hydrodistillation and analyzed by GC and GC-MS. We have compared the chemical composition of the oils obtained from samples collected at two different natural environments and at different phenological phases. The antioxidant activity of these oils was evaluated by the DPPH assay. S. fasciculata and S. praecox showed significant differences in their chemical composition as well as in their radical scavenger ability. The essential oil from samples of S. fasciculata attacked by plant-lice (Hemiptera, Psylloidea) was the more active one, with inhibition percentages higher than that of the reference compound.

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