Table 4 ANOVA for the statistical treatment of the results related to the planning to obtain the optimization of the extraction.
From: In vitro antioxidant extracts evaluation from the residue of the Hevea brasiliensis seed
Factor | Quadratic sum (SQ) | Degrees of freedom (DF) | Square Mean (MQ) | F | P |
|---|---|---|---|---|---|
Regression (R) | 1923.01 | 5 | 284.60 | 5.10 | 0.0491 |
Time (linear) | 305.31 | 1 | 305.31 | 4.05 | 0.1005 |
Time (quadratic) | 716.76 | 1 | 716.76 | 9.50 | 0.0274 |
Concentration (linear) | 21.55 | 1 | 21.55 | 0.29 | 0.6160 |
Concentration (quadratic) | 289.26 | 1 | 289.26 | 3.83 | 0.1076 |
Interaction time × concentration | 251.70 | 1 | 251.70 | 3.33 | 0.1274 |
Residue (r) | 377.37 | 5 | 75.47 | ||
Lack of adjustment (la) | 362.78 | 3 | 120.93 | 16.58 | 0.0574 |
Pure error (ep) | 14.59 | 2 | 7.29 | ||
Total quadratic sum (SQT) | 2300.38 | 10 |
