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Research Article Open access CC BY 4.0

Phenolic and Flavonoid Content and Antioxidant Activity, of Three Different Extracts of Tecoma stans (L.) Kunth and Zingiber officinales Roscoe

Swati Choudhury, Dipjyoti Chakraborty

Asian Plant Research Journal · pp. 119–125 · Published 23 Dec 2023

10.9734/aprj/2023/v11i6236

Abstract

Aim: The purpose of this study was to determine the total phenolic and flavonoid content and antioxidant activity in the three medicinal plants Tecoma stans and Zingiber officinales. Study Design: Plant extracts were prepared in three different solvents, total phenolic content, total flavonoid content and the antioxidant activity was determined. Place and Duration of Study: The study was conducted at Banasthali during August-December 2022. Methods: Aqueous, methanolic, and ethanolic solvent extracts were prepared; total phenolic and flavonoid contents was determined, the DPPH assay was used to measure the extracts' antioxidant activity. Results: The methanolic extract contained the highest total phenolic (16.67±0.04, 11.56±0.09 mg GAE/g dw) and flavonoid content (14.21±0.10, 7.96±0.06 mg QUE/g,) as well as displayed the highest antioxidant activity (68.91%, 53.09% at 300 µg/ml) in Z.officinales and T. stans extracts respectively. Conclusion: Tecoma stans and Zingiber officinales can be used as possible antioxidant agents as well as resource for the production of novel drugs.

Antioxidant activity DPPH assay total phenolic content total flavonoid content Tecoma stans Zingiber officinales

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Cited by 4

Phytochemical Profile, Antioxidant Potential, and Hemolytic Safety of Tecoma stans (L.) Kunth Leaf and Flower Extracts Using Different Solvents

Sujira Maneerat, Pontita Siribut, C. So-In · Tropical Journal of Natural Product Research · 2025

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