Morphology, anatomy, and quantitative determination of corosolic acid in Lagerstroemia calyculata Kurz in the Southeast region, Vietnam

Abstract

Objectives: To describe the morphological characteristics, anatomy (stem, leaves), and quantify the corosolic acid in the leaves of Lagerstroemia calyculata Kurz collected in the Southeast region, Vietnam. Subjects and methods: Using the comparative morphological method to determine the scientific name of species. Studying the microscopic characteristics of Lagerstroemia calyculata Kurz according to the research method of N. Ba (2009) [1] and quantifying the content of corosolic acid in the leaves according to the United States Pharmacopeia 2017 (USP 40), with adjustments to suit the conditions of the laboratory...