Author(s)

Yoro Tine^*, Adama Diédhiou, Alioune Diallo, Idrissa Ndoye, Mamadou Baldé, Cheikhouna Gaye, Benjamin Ndiaye, Alassane Wélé, Djibril Fall

Laboratoire de Chimie Organique et Thérapeutique, Faculté de Médecine, Pharmacie et Odontologie, Université Cheikh Anta Diop, Dakar, Sénégal.

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.

Covid-19, Covid-Organics, Artemisia annua, Essential Oils, Chemotaxonomic

Tine, Y. , Diédhiou, A. , Diallo, A. , Ndoye, I. , Baldé, M. , Gaye, C. , Ndiaye, B. , Wélé, A. and Fall, D. (2023) Chemotaxonomic Study of the Covid-Organics of Madagascar Based on the Chemical Composition of Their Essential Oils. International Journal of Organic Chemistry, 13, 50-56. doi: 10.4236/ijoc.2023.132005.