STUDY ON THE BOTANICAL CHARACTERISTICS, QUALITATIVE PHYTOCHEMICAL SCREENING, AND ANTIOXIDANT ACTIVITY  OF THE ETHANOL EXTRACT FROM Psychotria baviensis (Drake) Pitard

Nguyễn Quốc Bảo; Trương Bá Vương; Phạm Văn Ngọt; Quách Văn Toàn Em; Bùi Văn Hướng; Trần Văn Chện; Đặng Văn Sơn

doi:10.34238/tnu-jst.13385

STUDY ON THE BOTANICAL CHARACTERISTICS, QUALITATIVE PHYTOCHEMICAL SCREENING, AND ANTIOXIDANT ACTIVITY OF THE ETHANOL EXTRACT FROM Psychotria baviensis (Drake) Pitard

About this article

Received: 07/08/25 Revised: 02/12/25 Published: 03/12/25

Authors

1. Nguyen Quoc Bao , Institute of Life Science – VAST; Graduate of University of Science and Technology – VAST
2. Truong Ba Vuong, Institute of Life Science – VAST; Graduate of University of Science and Technology – VAST
3. Pham Van Ngot, Ho Chi Minh University of Education, Ho Chi Minh City
4. Quach Van Toan Em, Ho Chi Minh University of Education, Ho Chi Minh City
5. Bui Van Huong, Graduate of University of Science and Technology – VAST; Vietnam National Museum of Nature - VAST
6. Tran Van Chen, University of Medicine and Pharmacy at Ho Chi Minh City
7. Dang Van Son, Institute of Life Science – VAST; Graduate of University of Science and Technology – VAST

Abstract

In Vietnam, the genus Psychotria L. comprises approximately 30 species and one variety, of which nine species are known for their medicinal uses. To build a database on the medicinal potential of other species in this genus, a study was conducted on the morphology, anatomy, qualitative chemical composition, and antioxidant activity of the ethanol extract of Psychotria baviensis (Drake) Pitard, using comparative morphology, anatomical methods, and the DPPH radical scavenging assay. The results show that P. baviensis is a small shrub with obovate leaves, 4- to 5-merous flowers, and smooth and rich endosperm. The midrib is concave on the underside and slightly raised on the upper side; the leaf blade has a dorsiventral structure, paracytic stomata, and multicellular non-glandular trichomes on the abaxial surface. The primary stem has an oval cross-section, while the secondary stem is round. Needle-like calcium oxalate crystals are scattered in the midrib, leaf blade, and both primary and secondary stems. Preliminary screening revealed the presence of several classes of secondary metabolites in the extract, including polyphenols, tannins, flavonoids, alkaloids, saponins, terpenoids, essential oils, organic acids, and reducing sugars. The total ethanol extract exhibited notable antioxidant activity with an IC50 value of 68.39 µg/mL in the DPPH assay.

Keywords

Anatomy; Plants extract; Antioxidant activity; Phytochemical screening; Son La

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DOI: https://doi.org/10.34238/tnu-jst.13385

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