MICROSCOPIC CHARACTERISTICS, CHEMICAL COMPOSITION  AND ANTIOXIDANT ACTIVITY OF Amomum muricarpum Elmer

Nguyễn Đình Quỳnh Phú; Đoàn Quốc Tuấn; Nguyễn Hoài Bảo Châu; Đoàn Thị Ái Nghĩa; Lê Thị Khánh Linh; Trần Văn Nguyên

doi:10.34238/tnu-jst.8522

MICROSCOPIC CHARACTERISTICS, CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF Amomum muricarpum Elmer

About this article

Received: 10/08/23 Revised: 28/09/23 Published: 28/09/23

Authors

1. Nguyen Dinh Quynh Phu , University of Medicine and Pharmacy - Hue University
2. Doan Quoc Tuan, University of Medicine and Pharmacy - Hue University
3. Nguyen Hoai Bao Chau, University of Medicine and Pharmacy - Hue University
4. Doan Thi ai Nghia, University of Medicine and Pharmacy - Hue University
5. Le Thi Khanh Linh, University of Medicine and Pharmacy - Hue University
6. Tran Van Nguyen, University of Medicine and Pharmacy - Hue University

Abstract

Amomum muricarpum has been recorded in the North Central region in Vietnam with therapeutic properties. Studies on this species were rarely reported. The study was aimed at determining microscopic characteristics, total polyphenol content (TPC), total flavonoid content (TFC) and antioxidant activity of A. muricarpum. The microscopic features were identified by the microscopic method. TPC and TFC were determined by ultraviolet-visible spectroscopy method. The antioxidant activity was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The microscopic characteristics of A. muricarpum’s leaves and root have been described. TPC and TFC in the ethanol extract from the aerial parts (TPC = 641.97 ± 0.66 mg GAE/g extract and TFC = 57.87 ± 0.25 mg RE/g extract) of the A. muricarpum were found to be higher than the underground parts (TPC = 466.25 ± 0.48 mg GAE/g extract, TFC = 39.56 ± 0.05 mg RE/g extract). The ethanol extract from the aerial and underground parts of A. muricarpum showed strong DPPH radical scavenging activity with IC₅₀ values of 5.18 ± 0.20 and 6.44 ± 0.24 μg/mL, respectively, compared with quercetin used as positive control had IC₅₀ value of 2.12 ± 0.01 μg/mL.

Keywords

Amomum muricarpum; Microscopic characteristics; Total polyphenol; Total flavonoid; DPPH

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DOI: https://doi.org/10.34238/tnu-jst.8522

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