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Date Published: 08/11/2023
Online Published: 08/11/2023
Abstract Views: 256
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DOI: https://doi.org/10.52714/dthu.12.8.2023.1158
Issue
Vol. 12 No. 8 (2023): Natural Sciences Issue (Vietnamese)
Section
Natural Sciences Issue (Vietnamese)
How to Cite
Nguyen, V. K., Nguyen, T. M. K., Hoang, T. P. T., Mac, G. L., & Tran, T. T. A. (2023). Investigating total flavonoid content and antioxidance of ethanol extracts from Ruellia simplex C.WRIGHT. Dong Thap University Journal of Science, 12(8), 104-111. https://doi.org/10.52714/dthu.12.8.2023.1158

Investigating total flavonoid content and antioxidance of ethanol extracts from Ruellia simplex C.WRIGHT

Van Kiet Nguyen1, Thi Mai Khanh Nguyen1, Thi Phuong Thao Hoang1, Gia Linh Mac2, Thi Thuy An Tran2
1 Department of Political and Student Affairs, Can Tho University of Technology, Vietnam
2 Student, Faculty of Bio-Chemical Technology - Food, Can Tho University of Technology, Vietnam

Main Article Content

Abstract

This study investigated the natural compounds with biological activity in Ruellia simplex C.Wright flower such as steroids, flavonoids, alkaloids, saponins, tannins, and terpenoids, etc. The total flavonoid content as well as the antioxidant capacity of two ethanol extracts (E96 and E80) extracted from Ruellia simplex C.Wright flower were also studied. Results indicated that Ruellia simplex C.Wright flowers contained flavonoids, alkaloids, tannins and terpenoids, but not steroid or saponin compounds. Total flavonoid content in E96 and E80 were 7.13 and 0.98 mg QE/g extract, respectively. The antioxidant capacity studied by DPPH free radical neutralization method showed that the percentage of 50% inhibition of DPPH free radicals (IC50) of E96 and E80 were 0.089 and 0.242 mg/mL, respectively. The reference standard was ascorbic acid (IC50=0.02 mg/mL).

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

Keywords

chống oxy hóa, DPPH, flavonoid, hoa chiều tím, Ruellia simplex

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