The Constituents of Essential Oil: Antimicrobial and Antioxidant Activity of Micromeria congesta Boiss. & Hausskn. ex Boiss. from East Anatolia

2012 ◽  
Vol 15 (9) ◽  
pp. 835-839 ◽  
Author(s):  
Emine Nur Herken ◽  
Ali Celik ◽  
Mustafa Aslan ◽  
Nilüfer Aydınlık
2020 ◽  
Vol 16 ◽  
Author(s):  
Mojgan Alizadeh ◽  
Akram Arianfar ◽  
Ameneh Mohammadi

Objective: Ziziphora clinopodioides is an edible medicinal plant belongs to the Labiatae family that widespread all over Iran. It used as culinary and also in cold and cough treatments in Iran. The aim of present work was to evaluate the effect of different timeframes during the hydrodistillation on essential oil composition, antimicrobial and antioxidant activity. Materials and Methods: The essential oil of Z. clinopodiodes was extracted via hydrodistillation with Clevenger apparatus. The fractions of essential oil were captured at 6 times from the beginning of the distillation: (10, 20, 60, 120, 180 and 240 min). The fractions of essential oil were analyzed by GC/MS and their antibacterial, antifungal and antioxidant activities were studied by Disk - well diffusion and DPPH methods respectively. Results: Six distillation times and whole essential oil were captured during the hydrodistillation. Essential oil yield dropped off significantly during distillation progressed (1.0% for 10 min and 0.025 for 240 min). 1,8 Cineol, Isomenthone, Pulegone, Piperitenone and Citronellic acid were major compounds in fractions and they were affected by distillation times. Pulegone was major compound in all of essential oils. In antioxidant activity assay, whole essential oil was stronger than was stronger than positive control and fractions of essential oil, because of higher levels of Isomenthone, Piperitenone and Citronellic acid. Strongest antimicrobial activity against S. aureus, E. coli and C. albicans was observed from 10 min fraction. Conclusion: Our results indicated that distillation time can create essential oils with specific properties and we can achieve to more efficient essential oil in short times.


2016 ◽  
Vol 31 (10) ◽  
pp. 1121-1130 ◽  
Author(s):  
Luca A. Vitali ◽  
Stefano Dall’Acqua ◽  
Filippo Maggi ◽  
Pavol Martonfi ◽  
Fabrizio Papa ◽  
...  

2009 ◽  
Vol 45 (2) ◽  
pp. 253-256 ◽  
Author(s):  
S. Stojkovic ◽  
S. Petrovic ◽  
J. Kukic ◽  
A. Dzamic ◽  
M. Ristic ◽  
...  

2020 ◽  
Vol 7 (2) ◽  
pp. 122-128
Author(s):  
Mohammed Tahar Ben-Moussa ◽  
Khaled Khelil ◽  
Hassina Harkat ◽  
Samia Lakehal ◽  
Youcef Hadef

Ce travail vise l’étude de la composition chimique, de l’activité antioxydante et antimicrobienne de l’huile essentielle (HE) de Brocchia cinerea d’Algérie vis-à-vis de trois bactéries, d’un champignon. L’analyse chromatographique (CG/SM) a montré que l’HE de Brocchia cinerea est caractérisée par la présence du Beta.-Thujone (46,80), 1-Methyl-2-(1'-methylethenyl)-3'- ethenylcyclopropylmethanol (14,59) et du 1,8-Cineole (12,63), limonen-10-ol (9,47), accompagnés d’autres composés à des teneurs relativement faibles : 1(7),3,8-oMenthatriene (3,45), (-)-Camphor (2,11). L’activité antioxydante déterminée par le test DPPH a montré que l’HE présente un faible potentiel antioxydant avec l’IC 50 = 6652 μg/ml et IC 50 = 140.53 par FRAP, en comparaison à d’autres espèces de la famille des Asteraceae. Aux concentrations étudiées, l’essence a manifesté une forte activité antibactérienne et antifongique. Cette bioactivité est due principalement à la richesse de cette essence en Beta.-Thujone connu pour son efficacité contre les agents microbiens.


2017 ◽  
Vol 109 ◽  
pp. 529-537 ◽  
Author(s):  
Valtcho D. Zheljazkov ◽  
Ivanka B. Semerdjieva ◽  
Ivayla Dincheva ◽  
Miroslava Kacaniova ◽  
Tess Astatkie ◽  
...  

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