Table 1: PBD and results.

RunFactor 1Factor 2Factor 3Factor 4Response
Liquid Ratio 
(mL/g; X1)
Time 
(h; X2)
Number 
(X3)
Ethanol 
(%; X4)
Flavonoid 
(mg/50mL)

11:602.538024.58
21:402.557024.96
31:601.558032.28
41:402.538026.18
51:401.557024.45
61:401.538022.04
71:601.537022.58
81:602.537020.98
91:602.557027.31
101:402.558030.68
111:601.558032.28
121:401.537021.98