Chemical and Biological Technologies in Agriculture

Table 7 ANOVA for response surface quadratic model polyphenols content

From: Intensified extraction of anthocyanins from Berberis vulgaris L. by pulsed electric field, vacuum-cold plasma, and enzymatic pretreatments: modeling and optimization

Source	Sum of squares	df	Mean square	F-value	p-value
Model	238.75	5	47.75	13.67	0.0017	Significant
A-Power	38.20	1	38.20	10.94	0.0130
B-time	90.17	1	90.17	25.81	0.0014
AB	61.23	1	61.23	17.53	0.0041
A²	36.62	1	36.62	10.48	0.0143
B²	0.9335	1	0.9335	0.2672	0.6211
Residual	24.45	7	3.49
Lack of fit	2.63	3	0.8782	0.1610	0.9173	Not significant
Pure error	21.82	4	5.45
Cor total	263.20	12

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