Study on chemical composition and biological activities of essential oil of Limnophila aromatica (Lamk.) Merr.

Authors

  • Nguyen Thi Bich Thuyen*
  • Tran Thanh Men
  • Ho Quoc Phong
  • Huynh Lien Huong

Abstract

Limnophila aromatica (Lamk.) Merr. is a widely used spice and medicinal herb in many countries and Vietnam is one of them. However, there are relatively few studies on this plant, especially within Vietnam. This research focuses on the chemical composition analysed via Gas Chromatography-Mass Spectrometry (GC-MS), antioxidant activity (measured by the DPPH method), and antimicrobial properties (determined using the paper plate method) of the essential oil derived from Limnophila aromatica (Lamk.) Merr. The results show that the primary component of the essential oil is limonene (46.86%), followed by β-cis-ocimene (24.1%), α-pinene (5.69%), and 1,2-epoxy-5,9- cyclododecadiene (4.57%). The antioxidant activity was quantified with an IC50 value of 266.6±0.56 μg/ml. The antimicrobial assays demonstrated that the essential oil was effective against six of the eight tested microorganisms, including Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923, Bacillus subtilis ATCC 6633, Listeria innocua ATCC 33090, Bacillus cereus ATCC 14579, and Aspergillus niger ATCC 6275. These findings suggest that Limnophila aromatica has potential applications in functional foods, cosmetics, and antibiotics.

Keywords:

essential oil, hydrodistillation, Limnophila aromatica, steam distillation

DOI:

https://doi.org/10.31276/VJSTE.2023.0074

Classification number

2.2, 3.4

Author Biographies

Nguyen Thi Bich Thuyen

Faculty of Chemical Engineering, Can Tho University, Campus II, 3/2 Street, Xuan Khanh Ward, Ninh Kieu District, Can Tho City, Vietnam

Tran Thanh Men

Faculty of Chemical Engineering, Can Tho University, Campus II, 3/2 Street, Xuan Khanh Ward, Ninh Kieu District, Can Tho City, Vietnam

Ho Quoc Phong

Faculty of Chemical Engineering, Can Tho University, Campus II, 3/2 Street, Xuan Khanh Ward, Ninh Kieu District, Can Tho City, Vietnam

Huynh Lien Huong

Faculty of Chemical Engineering, Can Tho University, Campus II, 3/2 Street, Xuan Khanh Ward, Ninh Kieu District, Can Tho City, Vietnam

Downloads

Published

2024-12-15

Received 17 August 2023; revised 13 December 2023; accepted 8 April 2024

How to Cite

Nguyen Thi Bich Thuyen, Tran Thanh Men, Ho Quoc Phong, & Huynh Lien Huong. (2024). Study on chemical composition and biological activities of essential oil of Limnophila aromatica (Lamk.) Merr. Vietnam Journal of Science, Technology and Engineering, 66(4), 72-77. https://doi.org/10.31276/VJSTE.2023.0074

Issue

Section

Physical Sciences