Table 2.

Analysis of variance (ANOVA) of the fitted models for total lutein content and antioxidant activity.

Source	Sum of squares	D.F	Mean square	F-value	P-value	R2	Remarks
Lutein content (mg/g)
Model	404.95	9	44.99	56.74	<0.0001	0.98	significant
residual	5.55	1	0.7930
Lack of fit	4.61	7	1.54	6.49	0.0512		non-significant
Pure error	0.9459	3	0.2365
Corrected total	410.50	4
Antioxidant activity (%)
Model	1156.73	9	128.53	45.65	<0.0001	0.98	significant
residual	19.71	7	2.82
Lack of fit	14.70	3	4.90	3.91	0.1102		non-significant
Pure error	5.01	4	1.25
Corrected total	1176.44	16