Table 3 Analysis of the variance of the regression model.

From: Extraction process and antioxidant and antimicrobial activities of total flavonoids from Broussonetia papyrifera leaves

Source

The sum of squares

Degree of freedom

Mean square

F value

P

Prominence

Model

6.88

14

0.49

9.57

 < 0.0001

**

A

1.20

1

1.20

23.42

0.0003

**

B

0.26

1

0.26

5.08

0.0407

*

C

1.51

1

1.51

29.30

 < 0.0001

**

D

0.42

1

0.42

8.14

0.0128

*

AB

0.12

1

0.12

2.32

0.1502

NS

AC

2.500E-003

1

2.500E-003

0.049

0.8286

NS

AD

0.070

1

0.070

1.37

0.2619

NS

BC

0.078

1

0.078

1.53

0.2370

NS

BD

0.32

1

0.32

6.32

0.0247

*

CD

4.225E-003

1

4.225E-003

0.082

0.7785

NS

A2

0.89

1

0.89

17.35

0.0010

**

B2

0.71

1

0.71

13.92

0.0022

**

C2

1.24

1

1.24

24.11

0.0002

**

D2

1.59

1

1.59

31.03

 < 0.0001

**

Residual

0.72

14

0.051

   

Lost item

0.61

10

0.061

2.29

0.2204

NS

Pure error

0.11

4

0.027

   

Sum total

7.60

28

    
  1. *P < 0.05 and **P < 0.01 indicate significant impact.