Skip to main content

Table 3 Experimental design and results of BBD

From: Ionic liquid-based ultrasonic-assisted extraction coupled with HPLC to analyze isoquercitrin, trifolin and afzelin in Amygdalus persica L. flowers

Run order

A (mol/L)

B (g/mL)

C (mesh)

D (min)

Total extraction yield (mg/g)

1

0

0

0

0

157.31

2

0

0

1

1

159.62

3

0

0

0

0

157.15

4

− 1

0

− 1

0

156.34

5

1

0

− 1

0

157.63

6

0

1

− 1

0

156.14

7

0

0

0

0

158.64

8

0

1

0

1

158.53

9

0

− 1

0

1

157.21

10

1

0

0

− 1

158.83

11

0

0

− 1

1

158.24

12

0

1

1

0

156.12

13

0

− 1

1

0

157.3

14

0

0

0

0

157.83

15

− 1

0

0

1

158.32

16

− 1

1

0

0

157.12

17

0

0

0

0

158.41

18

1

1

0

0

158.04

19

0

1

0

− 1

156.82

20

− 1

− 1

0

0

155.72

21

0

− 1

− 1

0

154.64

22

1

0

0

1

159.37

23

0

0

1

− 1

156.93

24

− 1

0

1

0

157.65

25

1

0

1

0

158.71

26

− 1

0

0

− 1

156.12

27

0

0

− 1

− 1

156.42

28

0

− 1

0

− 1.000

156.54

29

1

− 1

0

0.000

157.59