Chemical composition, in vitro antioxidant activity and α-glucosidase inhibitory effects of the essential oil and methanolic extract of Elsholtzia densa Benth.

The essential oil from aerial parts (stems and leaves) of Atriplex undulata (Moq) D. Dietr. (Chenopodiaceae) has been studied for its in vitro antioxidant activity. The chemical composition of the oil obtained by hydrodistillation was determined by GC and GC-MS. The major constituents were p-acetanisole (28.1%), β-damascenone (9.3%), β-ionone (5.1%), viridiflorene (4.7%) and 3-oxo-α-ionol (2.2%). The antioxidant activity of the oil was determined by two methods: Crocin bleaching inhibition (Krel= 0.72 ± 0.15) and scavenging of the DPPH radical (IC50 = 36.2 ± 1.6 μg/mL). The presence of active compounds like p-acetanisole, carvone, vanillin, 4-vinylguaiacol, guaiacol, terpinen-4-ol and α- terpineol could explain the antioxidant activity observed for this oil.

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Chemical composition and biological activities of essential oils of endemic Thymus leucostomus Hausskn. et Velen

Bangladesh Journal of Botany ◽

10.3329/bjb.v49i4.52505 ◽

2020 ◽

Vol 49 (4) ◽

pp. 957-965

Author(s):

Omer Elkiran ◽

Cumhur Avsar

Keyword(s):

Antioxidant Activity ◽

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Biological Activities ◽

Antioxidant Properties ◽

Antimicrobial Activities ◽

Gram Positive Bacteria ◽

In Vitro Antioxidant Activity

The chemical composition, antimicrobial and antioxidant properties of the essential oils from the leaves of endemic Thymus leucostomus naturally grown in Turkey were investigated and chemical differences were discussed by means of chemotaxonomy. Twenty-six components were identified representing 98.8% of the oils. The main compounds in the essential oil of T. leucostomus were: o-cymene (30.6%), carvacrol (9.6%), thymol methyl ether (7.2%), limonene (6.8%). Essential oil was screened for their antimicrobial activities against 7 bacteria and 2 yeast species by using disc-diffusion and MIC procedure. The essential oil showed higher effectiveness against all the tested bacteria and yeast. The extract was observed to be much more effective in Gram-positive bacteria (especially, S. aureus ATCC 6538). In vitro antioxidant activity based on the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical was evaluated for the essential oil, and it was found that the essential oil had good antioxidant activity in the range of the IC50= 5.42 ±0.8 μg/ml.

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Chemical composition and in vitro antifungal and antioxidant activity of the essential oil and methanolic extract of Teucrium sauvagei Le Houerou

Natural Product Research ◽

10.1080/14786410600704748 ◽

2006 ◽

Vol 20 (12) ◽

pp. 1089-1097 ◽

Cited By ~ 24

Author(s):

K. Bel Hadj Salah ◽

M. A. Mahjoub ◽

J. P. Chaumont ◽

L. Michel ◽

J. Millet-Clerc ◽

...

Keyword(s):

Antioxidant Activity ◽

Chemical Composition ◽

Essential Oil ◽

Methanolic Extract

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

Antioxidants ◽

10.3390/antiox10071081 ◽

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.

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Determination of in vitro antioxidant activity and in vivo antineoplastic effects against Ehrlich ascites carcinoma of methanolic extract of Sphagneticola calendulacea (L.) Pruski

Heliyon ◽

10.1016/j.heliyon.2021.e07228 ◽

2021 ◽

pp. e07228

Author(s):

Md. Wasim Bari ◽

Ariful Islam ◽

Md. Monirul Islam ◽

Mst Julia Sultana ◽

Rashida Afroz ◽

...

Keyword(s):

Antioxidant Activity ◽

Methanolic Extract ◽

Ehrlich Ascites Carcinoma ◽

Ehrlich Ascites ◽

Sphagneticola Calendulacea ◽

In Vitro Antioxidant Activity

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Assessment of in vitro antioxidant activity of essential oil of Eucalyptus citriodora (lemon-scented Eucalypt; Myrtaceae) and its major constituents

LWT ◽

10.1016/j.lwt.2012.03.019 ◽

2012 ◽

Vol 48 (2) ◽

pp. 237-241 ◽

Cited By ~ 42

Author(s):

Harminder Pal Singh ◽

Shalinder Kaur ◽

Kirti Negi ◽

Savita Kumari ◽

Varinder Saini ◽

...

Keyword(s):

Antioxidant Activity ◽

Essential Oil ◽

Eucalyptus Citriodora ◽

In Vitro Antioxidant Activity

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

Journal of Agricultural Science ◽

10.5539/jas.v11n4p197 ◽

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.

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