Table 1.
Inhibitory activity of the tested plant extracts against SARS-CoV-2 viral main protease (SARS-CoV-2 MPRO).
| Family | Sample No. | Plant Name | Specimen Number | % Inhibition |
|---|---|---|---|---|
| Acanthaceae | 1 | Barleria trispinosa (Forssk.) Vahl | BT-1003 | - |
| Amaranthaceae | 2 | Traganum nudatum Delile | TN-0554 | - |
| Apocynaceae | 3 | Caralluma russelliana (Courbai ex Brongn.) Cufod. | CR-1168 | - |
| 4 | Leptadenia pyrotechnica (Forssk.) Decne. | LP-0840 | - | |
| 5 | Rhazya stricta Decne. | RS-1014 | - | |
| Asparagaceae | 6 | Dracaena cinnabari Balf.f. Resin | DC-1140 | - |
| Asteraceae | 7 | Conyza pyrrhopappa Sch.Bip. ex A.Rich. | CP-1060 | - |
| 8 | Echinops macrochaetus Fresen. | EM-0535 | 8.13 | |
| 9 | Lactuca serriola L. | LS-1050 | - | |
| 10 | Psiadia punctulata Vatke | PP-1065 | 66.45 | |
| 11 | Pulicaria arabica (L.) Cass. | PA-0733 | - | |
| 12 | Saussurea lappa (Decne.) Sch.Bip | SL-1050 | - | |
| 13 | Tagetes minuta L. | TM-3015 | - | |
| 14 | Verbesina encelioides (Cav.) Benth. & Hook. f. ex A.Gray | VE-1053 | - | |
| Brassicaceae | 15 | Lepidium sativum L. | LS-1040 | - |
| Capparaceae | 16 | Maerua crassifolia Forssk. | MC-1034 | - |
| Caryophyllaceae | 17 | Cometes abyssinica R. Br. Ex Wall. | CA-1315 | 0.83 |
| Cleomaceae | 18 | Cleome viscosa L. | CV-0541 | - |
| Convolvulaceae | 19 | Convolvulus glomeratus Choisy. | CG-0440 | - |
| Fabaceae | 20 | Crotalaria emarginella Vatke | CE-1119 | - |
| 21 | Pithecellobium dulce (Roxb.) Benth. | PD-1020 | - | |
| 22 | Parkinsonia aculeata L. | PA-1166 | - | |
| 23 | Tephrosia nubica (Bioss.) Baker | TN-1120 | - | |
| Lamiaceae | 24 | Lavandula dentata L | LD-1090 | 4.43 |
| 25 | Origanum majorana L. | OM-1239 | - | |
| 26 | Phlomis floccosa D.Don | PF-1140 | - | |
| Malvaceae | 27 | Abutilon pannosum (G.Forst.) Schltdl. | AP- 1041 | 3.2 |
| 28 | Triumfetta flavescens Hochst. ex A.Rich. | TF-1142 | - | |
| Peraceae | 29 | Clutia myricoides Jaub. & Spach | CM-1088 | - |
| Ranunculaceae | 30 | Nigella sativa L. seeds | NS-0801 | 31.5 |
| Solanaceae | 31 | Solanum surattense Burm. f. | SS-1141 | - |
| 32 | Withania somnifera (L.) Dunal | WS-1154 | - | |
| Zingiberaceae | 33 | Aframomum melegueta K. Schum | AM-1307 | 58.7 |