Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities
Joint Authors
Zhang, Aihua
Xiao, Zhihong
Liu, Rukuan
Wu, Hong
Li, Jilie
Jia, Yuan
Li, Peiwang
Xie, Yixian
Ren, Zewen
Zhao, Mengrui
Zeng, Chaozhen
Li, Changzhu
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
To improve essential oil quality, especially to reserve the thermal instability of compounds, supercritical CO2 extraction (SFE) was applied to recover essential oil from Cymbopogon citronella leaves.
A response surface methodology was applied to optimize the extraction process.
The highest essential oil yield was predicted at extraction time 120 min, extraction pressure 25 MPa, extraction temperature 35°C, and CO2 flow 18 L/h for the SFE processing.
Under these experimental conditions, the mean essential oil yield is 4.40%.
In addition, the chemical compositions of SFE were compared with those obtained by hydrodistillation extraction (HD).
There were 41 compounds obtained of SFE, while 35 compounds of HD.
Alcohols and aldehydes were the main compositions in the essential oils.
Furthermore, the antioxidant activities and antimicrobial of essential oils obtained by HD and the evaluated condition of SFE were compared.
Results showed that the antioxidant activities of SFE oil are better than those of HD.
Minimum inhibitory concentrations (MICs) were determined by the microdilution method.
Essential oil obtained from SFE and HD exhibited a significant antimicrobial activity against all tested microorganisms.
It is confirmed that the SFE method can be an alternative processing method to extract essential oils from Cymbopogon citronella leaves.
American Psychological Association (APA)
Wu, Hong& Li, Jilie& Jia, Yuan& Xiao, Zhihong& Li, Peiwang& Xie, Yixian…[et al.]. 2019. Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities. Journal of Analytical Methods in Chemistry،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1169323
Modern Language Association (MLA)
Wu, Hong…[et al.]. Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities. Journal of Analytical Methods in Chemistry No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1169323
American Medical Association (AMA)
Wu, Hong& Li, Jilie& Jia, Yuan& Xiao, Zhihong& Li, Peiwang& Xie, Yixian…[et al.]. Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities. Journal of Analytical Methods in Chemistry. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1169323
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169323