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Date Published: 10/08/2017
Online Published: 01/07/2023
Abstract Views: 97
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DOI: https://doi.org/10.52714/dthu.27.8.2017.495
Issue
No. 27 (2017): Part B - Natural Sciences
Section
Natural Sciences Issue
How to Cite
Vo, T. K. N., Nguyen, T. H., Nguyen, T. N. M., & Nguyen, D. D. (2023). The effect of ultrasonic waves on antibacterial activities of Imperata cylindrica rhizome and leaf extracts. Dong Thap University Journal of Science, 27, 82-87. https://doi.org/10.52714/dthu.27.8.2017.495

The effect of ultrasonic waves on antibacterial activities of Imperata cylindrica rhizome and leaf extracts

Thi Kieu Ngan Vo1,, Thanh Hoang Nguyen2, Thi Ngoc Mai Nguyen2, Duc Do Nguyen2
1 Postgraduate, Can Tho University
2 Can Tho University

Main Article Content

Abstract

Both leaf and rhizome extracts from Imperata cylindrica investigated contain phenols and tannins, flavonoids, quinones, coumarins, alkaloids, terpenoids and saponins. The ultrasound-assisted extractions such as RM96S, LM96S and RE96S are found to resist E. coli and B. subtilis better than those without ultrasounds. The minimum inhibitory concentration (MIC) of the RM96S extract against E. coli and B. subtilis, respectively is 50 and 75 mg/ml; the minimum bactericidal concentration (MBC) respectively is 75 and 100 mg/ml; the median inhibitory concentration (IC50) respectively is 16.4 and 21.1 mg/ml. Ultrasound-assisted extraction is an effective method to optimize the extraction of antibacterial compounds.

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords

Antibacterial activity, Imperata cylindric, ultrasonic-assisted extraction

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