Chemical composition, antioxidant and antimicrobial activities of essential oil from Wedelia prostrata

Authors

  • Jiali Dai Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Wushan Road 381, Guangzhou, 510641, China
  • Liang Zhu Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Wushan Road 381, Guangzhou, 510641, China
  • Li Yang Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Wushan Road 381, Guangzhou, 510641, China
  • Jun Qiu Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Wushan Road 381, Guangzhou, 510641, China

Keywords:

Wedelia prostrata, chemical composition, essential oil, antioxidant activity, antimicrobial activity

Abstract

The following study deals with the chemical composition, antioxidant and antimicrobial activity of essential oils of Wedelia prostrata and their main constituents in vitro. A total of 70 components representing 99.26 % of the total oil were identified. The main compounds in the oil were limonene (11.38 %) and α-pinene (10.74 %). Antioxidant assays (1,1-diphenyl-2-picrylhydrazyl, superoxide anion radical, and reducing power test) demonstrate moderate activities for the essential oil and its main components (limonene and α-pinene). The essential oil (1000 μg/disc) exhibited promising antimicrobial activity against 10 strains of test microorganisms as a diameter of zones of inhibition (20.8 to 22.2 mm) and MIC values (125 to 250 µg/ml). The activities of limonene and α-pinene were also determined as main components of the oil. α-Pinene showed higher antimicrobial activity than the essential oil with a diameter of zones of inhibition (20.7 to 22.3 mm) and MIC values (62.5 to 125 µg/ml). The antioxidant and antimicrobial properties of the essential oil may be attributed to the synergistic effects of its diverse major and minor components.

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Published

2013-06-07

How to Cite

Dai, J., Zhu, L., Yang, L., & Qiu, J. (2013). Chemical composition, antioxidant and antimicrobial activities of essential oil from Wedelia prostrata. EXCLI Journal, 12, 479–490. Retrieved from https://www.excli.de/index.php/excli/article/view/1164

Issue

Vol. 12 (2013)

Section

Original articles

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