Table 3 ANOVA analysis for pigment optimization in Synechocystis sp. PCC 6803. ANOVA analysis of central composite randomized design (CCRD) model for the optimization of chlorophyll A, carotenoid and phycocyanin production from the Synechocystis sp. PCC 6803

Model

23.57

< 0.0001

37.93

< 0.0001

48.77

< 0.0001

A-Urea

0.0087

0.9277

0.9470

0.3534

23.89

0.0006

B-Ammonium Chloride

2.68

0.1325

0.4503

0.5174

16.13

0.0025

C-Sodium Nitrate

83.45

< 0.0001

113.65

< 0.0001

98.20

< 0.0001

AB

0.5225

0.4863

0.0552

0.8190

40.66

< 0.0001

AC

2.45

0.1485

38.48

0.0001

1.36

0.2699

BC

3.69

0.0837

1.02

0.3353

0.0060

0.9400

A²

96.24

< 0.0001

152.22

< 0.0001

88.53

< 0.0001

B²

13.44

0.0043

3.33

0.0982

63.46

< 0.0001

C²

26.59

0.0004

50.06

< 0.0001

90.97

< 0.0001

Residual

Lack of Fit

2.43

0.1758

119.99

< 0.0001

1.75

0.2764

Coefficient of Regression (R²)

R²

0.9550

0.9715

0.9777

AdjustedR²

0.9145

0.9459

0.9577

PredictedR²

0.7189

0.7849

0.8759

Adequate Precision

11.7583

15.3746

27.4067