Comparative Survey on the Essential Oil Composition and Antioxidant Activity of Aqueous Extracts From Flower and Stem of Achillea Wilhelmsii From Taftan (Southeast of Iran)

Health Scope ◽  
2012 ◽  
Vol 1 (4) ◽  
pp. x-x ◽  
Author(s):  
Ali Shahraki ◽  
Mehdi Ravandeh
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Aqueous Extracts ◽  
Oil Composition ◽  
Comparative Survey ◽  
Achillea Wilhelmsii

Evaluation of antioxidant and antimicrobial activity of Ziziphora ‎clinopodiodes essential oil eluted at different times

2020 ◽  
Vol 16 ◽  
Author(s):  
Mojgan Alizadeh ◽  
Akram Arianfar ◽  
Ameneh Mohammadi
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Positive Control ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Citronellic Acid ◽  
Antimicrobial And Antioxidant Activity

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.

scholarly journals Seasonal effect in essential oil composition and antioxidant activity of Plectranthus amboinicus leaves

2017 ◽  
pp. 1608-1616 ◽  
Author(s):  
Rita de Cássia de Freitas Bezerra ◽  
Francisco Barros de Oliveira Neto ◽  
Francisco Felipe Maia da Silva ◽  
Luciana Medeiros Bertini ◽  
Leonardo Alcântara Alves
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Seasonal Effect ◽  
Oil Composition ◽  
Plectranthus Amboinicus

Variation of Essential Oil Composition and Antioxidant Activity in Aerial Parts of Stachys Schtschegleevi Sosn at Different Growing Stages

2020 ◽  
Vol 23 (5) ◽  
pp. 1054-1071
Author(s):  
Saeid Hazrati ◽  
Vahid Rowshan ◽  
Seyyed Jaber Hosseini ◽  
Mojde Sedaghat ◽  
Hamid Mohammadi
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts

Chemical composition and antioxidant activity of some important betel vine landraces

Biologia ◽  
2016 ◽  
Vol 71 (2) ◽  
Author(s):  
Suryasnata Das ◽  
Reena Parida ◽  
I. Sriram Sandeep ◽  
Basudev Kar ◽  
Sanghamitra Nayak ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition

AbstractThe essential oil composition and

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