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. 2021 Oct 2;26(19):5998. doi: 10.3390/molecules26195998

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.