From: Effects of temperature, time, and solvent ratio on the extraction of phenolic compounds and the anti-radical activity of Clinacanthus nutans Lindau leaves by response surface methodology
Parameter no.
Responses
Actual value
Predicted value
RSE (%)
1
Extraction yield (%)
23.51
23.53
0.09
2
DPPH radical scavenging activity (%)
72.95
0
3
Total phenolic content (mg GAE/g extract)
129.75
129.55
0.15