Optimization of Extraction of Compound Flavonoids from Chinese Herbal Medicines Based on Quantification Theory and Evaluation of Their Antioxidant Activity

Table 5

Effect values of factors and levels for CFs yield.

Factor	Level	Effect value
A	A1 (25 : 1 mL/g)	−2.18
	A2 (30 : 1 mL/g)	−0.80
	A3 (35 : 1 mL/g)	2.99
B	B1 (65°C)	−1.70
	B2 (70°C)	−0.56
	B3 (75°C)	2.26
C	C1 (45 min)	−1.66
	C2 (60 min)	−0.15
	C3 (75 min)	1.81
D	D1 (EE)	−1.21
	D2 (UAE)	−0.13
	D3 (EAE)	1.34