Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Antioxidant potentials with IC50 (obtained from DPPH assay) of methanolic extracts and their various solvent fractions of Ophiorrhiza fasciculata and Psychotria silhetensis.
| Test samples |
Ophiorrhiza fasciculata |
Psychotria silhetensis |
|---|---|---|
| IC50 (μg/mL) | IC50 (μg/mL) | |
| Methanol (crude) extract | 822.7 | 573.07 |
| Petroleum ether fraction | 79.39 | 1294.38 |
| Dichloromethane fraction | 742.62 | 370.09 |
| Chloroform fraction | 26.88 | 239.85 |
| Aqueous fraction | 7.22 | 341.77 |
| BHT | 21.20 | 21.20 |
