Nghiên cứu đặc điểm hình thái và phân tích thành phần tinh dầu của loài ngũ sắc (ageratum conyzoides l.)

Abstract

Objectives: To build a data set on detailed morphological characteristics and essential oil composition in several different regions of the species Ngu sac (Ageratum conyzoides).              

Subjects and Method: Subjects: Species Ngu sac collected in some provinces of Vietnam. Method: Analyze, describe, photograph morphological characteristics, determine scientific names by morphological comparison method; Quantification of total essential oils by steam distillation method, analysis of chemical composition in essential oils by GC-MS method.              

Results: A dataset of morphological characteristics of the species Ngu sac (Ageratum conyzoides) has been built, including detailed descriptions and images. Total essential oil content of samples ranges from 0.60 - 0.61%; The main substances with the highest proportion include β-Caryophyllene (18.53 - 22.54%), E-β-Famesene (3.0 - 6.18%), Precocene I (5.48 - 21.16% ), β-Sesquiphellandrene (2.06 – 4.29 %), Precocene II (21.02 – 45.00 %).              

Conclussions: The study developed detailed morphological data including descriptions and images of the species Ngu sac (Ageratum conyzoides). Comparative analysis of the chemical composition of essential oils from samples of the species Ageratum conyzoides collected in different regions showed differences.