Effect of harvest year on production, chemical composition and antioxidant activities of essential oil of oregano (Origanum vulgare subsp glandulosum (Desf.) Ietswaart) growing in North Africa

2016 ◽  
Vol 90 ◽  
pp. 32-37 ◽  
Author(s):  
Kaouther Mechergui ◽  
Wahbi Jaouadi ◽  
Jose P. Coelho ◽  
Mohamed Larbi Khouja
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
North Africa ◽  
Antioxidant Activities ◽  
Origanum Vulgare ◽  
Harvest Year

scholarly journals Chemical Composition, Antimicrobial activity, In Vitro Cytotoxicity and Leukotoxin Neutralization of Essential Oil from Origanum vulgare against Aggregatibacter actinomycetemcomitans

Pathogens ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 192 ◽  
Author(s):  
Sanae Akkaoui ◽  
Anders Johansson ◽  
Maâmar Yagoubi ◽  
Dorte Haubek ◽  
Adnane El hamidi ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Periodontal Diseases ◽  
Aggregatibacter Actinomycetemcomitans ◽  
Psidium Guajava ◽  
Minimal Bactericidal Concentration ◽  
Origanum Vulgare ◽  
Neutralizing Capacity ◽  
Broth Microdilution Method

In this study, the essential oil of Origanum vulgare was evaluated for putative antibacterial activity against six clinical strains and five reference strains of Aggregatibacter actinomycetemcomitans, in comparison with some antimicrobials. The chemical composition of the essential oil was analyzed, using chromatography (CG) and gas chromatography–mass spectrometry coupled (CG–MS). The major compounds in the oil were Carvacrol (32.36%), α-terpineol (16.70%), p-cymene (16.24%), and Thymol (12.05%). The antimicrobial activity was determined by an agar well diffusion test. A broth microdilution method was used to study the minimal inhibitory concentration (MIC). The minimal bactericidal concentration (MBC) was also determined. The cytotoxicity of the essential oil (IC50) was <125 µg/mL for THP-1 cells, which was high in comparison with different MIC values for the A. actinomycetemcomitans strains. O. vulgare essential oil did not interfere with the neutralizing capacity of Psidium guajava against the A. actinomycetemcomitans leukotoxin. In addition, it was shown that the O. vulgare EO had an antibacterial effect against A. actinomycetemcomitans on a similar level as some tested antimicrobials. In view of these findings, we suggest that O.vulgare EO may be used as an adjuvant for prevention and treatment of periodontal diseases associated to A. actinomycetemcomitans. In addition, it can be used together with the previously tested leukotoxin neutralizing Psidium guajava.

scholarly journals Chemical composition, antioxidant activities and antibacterial activities of essential oil from Erythrina caffra Thunb. growing in South Africa

Heliyon ◽  
2021 ◽  
pp. e07244
Author(s):  
Olubunmi A. Wintola ◽  
Aderonke A. Olajuyigbe ◽  
Anthony J. Afolayan ◽  
Roger M. Coopoosamy ◽  
Olufunmiso O. Olajuyigbe
Keyword(s):  
South Africa ◽  
Chemical Composition ◽  
Essential Oil ◽  
Antioxidant Activities ◽  
Antibacterial Activities

Chemical composition and antifungal activity of essential oil from origanum vulgare against botrytis cinerea

2021 ◽  
pp. 130506
Author(s):  
Yun Zhao ◽  
Yun-Hai Yang ◽  
Min Ye ◽  
Kai-Bo Wang ◽  
Li-Ming Fan ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Essential Oil ◽  
Botrytis Cinerea ◽  
Origanum Vulgare

scholarly journals Interference of heating on the antimicrobial activity and chemical composition of Origanum vulgare L. (Lamiaceae) essential oil

2008 ◽  
Vol 28 (2) ◽  
pp. 418-422 ◽  
Author(s):  
Evandro Leite de Souza ◽  
Tânia Lúcia Montenegro Stamford ◽  
Edeltrudes de Oliveira Lima ◽  
José Maria Barbosa Filho ◽  
Márcia Ortiz Mayo Marques
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Origanum Vulgare

Chemical composition and antioxidant activities of citronella essential oil Cymbopogon nardus (L.) rendle fractions

2020 ◽  
Author(s):  
Undri Rastuti ◽  
Hartiwi Diastuti ◽  
Moch. Chasani ◽  
Purwati ◽  
Rafly Hidayatullah
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Antioxidant Activities ◽  
Cymbopogon Nardus
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