Nghiên cứu đặc điểm thực vật và sơ bộ thành phần hoá học của loài khôi (Ardisia gigantifolia Stapf.), họ Đơn nem (Myrsinaceae)

Abstract

Objective: To study on plant characteristics and preliminary chemical composition of Ardisia gigantifolia Stapf.

Subject and method: The samples were collected in Yen Bai in 2021 and 2022. Studied the morphological characteristics of plant in the laboratory, determined the scientific name by the method of comparing morphological characteristics, based on the classification key genus Ardisia Staff. Studied on microscopic characteristics: roots, stems and leaves were cut, bleached, and stained by double staining method, stem, leaves, and roots powder were applied to the specimen by pressing drop method. Identified the major groups of compounds in medicinal herbs by characteristic chemical reactions. Determined of total polyphenol content by photometric method.

Results: A data set on morphology, anatomical structure and medicinal powder characteristics (roots, stems, leaves) of Ardisia gigantifolia Stapf was built. Preliminary study of phytochemistry also showed that there are flavonoids, coumarins, tannins, organic acids and sterols in the plant. The total polyphenol content in the leaves collected in Yen Bai in May reached the highest level of 4.05%.

Conclusion: A data set on morphology, anatomical structure and medicinal powder characteristics (root, stem, leaf) of Ardisia gigantifolia Stapf and preliminary chemical composition of this species has been built.