TITLE:
Chemotaxonomic Study of the Covid-Organics of Madagascar Based on the Chemical Composition of Their Essential Oils
AUTHORS:
Yoro Tine, Adama Diédhiou, Alioune Diallo, Idrissa Ndoye, Mamadou Baldé, Cheikhouna Gaye, Benjamin Ndiaye, Alassane Wélé, Djibril Fall
KEYWORDS:
Covid-19, Covid-Organics, Artemisia annua, Essential Oils, Chemotaxonomic
JOURNAL NAME:
International Journal of Organic Chemistry,
Vol.13 No.2,
June
13,
2023
ABSTRACT: The aim of this study was to investigate the chemical composition of the essential oils of “Covid-Organics” of Madagascar (62% Artemisia annua and two other undisclosed medicinal plants) used as curative and preventive treatments of Covid-19, to identify its constituent species. The essential oils isolated by hydro-distillation from two samples (curative and preventive) were analyzed by GC-FID and GC-MS. These essential oils (curative and preventive) were mainly dominated by camphor (17.9% and 11.9%, respectively), spathulenol (4.8% and 11.8%, respectively), α-acorenol (4.3% and 3.7%, respectively), (E)-β-caryophyllene (3.4% and 4.2%, respectively), 1,8-cineole (3.1% and 3.6%, respectively), hexadecanoïc acid (3.8% and 3.2%, respectively) and caryophyllene oxide (3.4% and 2.4%, respectively). From the chemical composition, two species were identified, A. annua characterised by camphor and Cinnamomumcamphora (Ravintsara) characterised by 1,8-cineole and sabinene. However, we were unable to identify the third species.