Identification of Anthocyanins and Optimization of Their Extraction from Rabbiteye Blueberry Fruits in Nanjing

Table 3

Regression equation coefficient test.

Sources of deviation	Sum of squares	Degrees of freedom	Mean square	F value	value	Significance
Model	299.13	9	33.24	7.72	0.0067	Significant
A	31.33	1	31.33	7.27	0.0308	Significant
B	5.62	1	5.62	1.31	0.2908
C	195.97	1	195.97	45.49	0.0003	Significant
AB	1.91	1	1.91	0.44	0.5265
AC	44.75	1	44.75	10.39	0.0146	Significant
BC	1.35	1	1.35	0.31	0.5931
A^2	13.69	1	13.69	3.18	0.1179
B^2	0.42	1	0.42	0.098	0.7636
C^2	0.012	1	0.012	0.00268	0.9602
Residual	30.15	7	4.31
Lack of fit	10.14	3	3.38	0.68	0.6110	Not significant
Pure error	20.02	4	5.00