| ATCC | American Type Culture Collection |
| COVID-19 | Coronavirus disease 2019 |
| CPE | Cytopathic effect |
| DMSO | Dimethyl sulfoxide |
| DPPH | 2,2-Diphenyl-1-picrylhydrazyl |
| GAE | Gallic acid equivalent |
| EC50 | Half maximal effective concentration |
| EMEM | Eagle’s minimum essential medium |
| FBS | Fetal bovine serum |
| MERS-CoV | Middle East respiratory syndrome coronavirus |
| MTT | 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| PBS | Phosphate-buffered saline |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |
| SEM | Standard error of the mean |
| SWE | Subcritical water extraction |
| TCID50 | Tissue culture infectious dose 50% |
| TPC | Total phenolic content |
| UPLC-MS-MS | Ultra-high performance liquid chromatography coupled with mass spectrometry |
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