| TPC | Total phenolic content |
| TFC | Total flavonoid content |
| BPG | Byproduct powders of guava |
| BPGE | Byproduct powders of guava extraction |
| UPLC | Ultra-high-performance liquid chromatography |
| DPPH | 1,1-diphenyl-2-picrylhydrazyl |
| TEAC | Trolox equivalent antioxidant capacity |
| FRAP | Ferric reducing antioxidant power |
| HMG-CoA | Enzyme 3-hydroxy-3-methylglutaryl coenzyme |
| Ic50 | Half maximal inhibitory concentration |