Table 2.
ANOVA results for total phenolics (TP) content and total flavonoids (TF) content.
Source | Total Phenolics (TP) Content (mg GAE/g dw) | Total Flavonoids (TF) Content (mg QE/g dw) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Sum of Squares | DF a | Mean Square | F-Value | p-Value | Sum of Squares | DF | Mean Square | F-Value | p-Value | |
Model | 30.2 | 9 | 3.36 | 84.96 | <0.0001 *** | 0.1172 | 9 | 0.0130 | 90.83 | <0.0001 *** |
X1 -Ethanol | 0.72 | 1 | 0.7200 | 18.23 | 0.0079 ** | 0.0024 | 1 | 0.0024 | 17.09 | 0.0090 ** |
X2 -Temperature | 2.68 | 1 | 2.68 | 67.84 | 0.0004 *** | 0.0004 | 1 | 0.0004 | 3.14 | 0.1366 ns |
X3- Time | 0.2016 | 1 | 0.2016 | 5.10 | 0.0734 ns | 0.0072 | 1 | 0.0072 | 50.23 | 0.0009 *** |
X12 | 2.77 | 1 | 2.77 | 70.01 | 0.0004 *** | 0.0196 | 1 | 0.0196 | 136.96 | <0.0001 *** |
X22 | 8.01 | 1 | 8.01 | 202.80 | <0.0001 *** | 0.0319 | 1 | 0.0319 | 222.40 | <0.0001 *** |
X32 | 13.37 | 1 | 13.37 | 338.50 | <0.0001 *** | 0.0558 | 1 | 0.0558 | 389.20 | <0.0001 *** |
X1 X2 | 1.28 | 1 | 1.28 | 32.33 | 0.0023 ** | 0.0072 | 1 | 0.0072 | 50.41 | 0.0009 *** |
X1 X3 | 0.0625 | 1 | 0.0625 | 1.58 | 0.2640 ns | 0.0056 | 1 | 0.0056 | 39.24 | 0.0015 ** |
X2 X3 | 3.90 | 1 | 3.90 | 98.75 | 0.0002 *** | 0.0002 | 1 | 0.0002 | 1.57 | 0.2656 ns |
Residual | 0.1975 | 5 | 0.0395 | 0.0007 | 5 | 0.0001 | ||||
Lack of fit | 0.1862 | 3 | 0.0621 | 11.02 | 0.0843 ns | 0.0005 | 3 | 0.0002 | 1.13 | 0.5024 ns |
Pure error | 0.0113 | 2 | 0.0056 | 0.0003 | 2 | 0.0001 | ||||
Cor Total | 30.40 | 14 | 0.1179 | 14 | ||||||
R2 | 0.9935 | 0.9939 | ||||||||
Adjusted R2 | 0.9818 | 0.9829 | ||||||||
Predicted R² | 0.9012 | 0.9338 | ||||||||
C.V % b | 1.52 | 0.4246 | ||||||||
Adeq Precision | 29.4772 | 28.7290 |
a Degree of freedom. b Coefficient of variation. Different superscripts (ns, **, ***) in columns indicate not significant at p > 0.05, significant at p < 0.05, p < 0.01 and p < 0.001; respectively.