Green extraction of phenolics and flavonoids from black mulberry fruit using natural deep eutectic solvents: optimization and surface morphology

Table 4 The ANOVA results of the optimization process

	Coefficient	TPC	TFC	ABTS	OH	DPPH
Intercept	b₀	37.8**	25.5**	2.280**	4.9**	99.4**
Linear	b₁	0.9*	1.4**	0.068	0.3*	27.1**
	b₂	1.2**	0.7*	0.115*	0.2	4.2
	b₃	− 2.4**	− 1.7**	0.047	− 2.3**	− 19.8**
	b₄	4.3**	0.6	0.135*	1.3**	4.5
Interaction	b₁₂	0.5	0.6	− 0.225*	− 0.2	− 14.7**
	b₁₃	1.1	0.8	− 0.070	0.6**	0.1
	b₁₄	1.4*	− 1.9**	0.188*	0.3	2.4
	b₂₃	− 1.6*	− 0.5	0.033	− 0.2	− 1.0
	b₂₄	− 4.5**	0.5	− 0.033	− 0.2	− 1.2
	b₃₄	0.2	0.1	0.004	− 0.8**	− 0.6
Quadratic	b₁₁	− 3.2**	− 5.9**	− 0.237**	1.6**	35.3**
	b₂₂	− 7.7**	− 5.9**	− 0.221**	2.0**	34.6**
	b₃₃	− 5.4**	− 5.3**	− 1.060**	− 1.4**	12.2**
	b₄₄	− 6.5**	− 8.0**	− 0.287**	1.8**	39.0**
Degree of freedom		14	14	14	14	14
F-values		49.48	45.71	21.5	71.13	27.31
p-values		< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
R²		0.9802	0.9786	0.9556	0.9861	0.9647
Adjusted R²		0.9604	0.9572	0.9111	0.9723	0.9293

ISSN: 2661-801X