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Table 3 The influence of pH on color difference

From: Effect of Lonicera edulis polysaccharide on reducing oral dyeing of lonicera edulis juice

pH

Polysaccharide group

Pectin group

Casein group

L*

a*

b*

L*

a*

b*

L*

a*

b*

3.5

0.33

1.98

0.36

− 0.96

0.45

0.33

− 1.49

1.67

0.73

4.0

1.03

0.08

− 1.02

− 0.82

0.38

0.41

− 1.35

− 1

− 1.02

4.5

0.85

1.78

0.26

− 0.58

0.71

− 0.58

− 1.01

2.37

− 1.64

5.0

0.86

2.01

− 0.4

0.21

0.18

− 0.03

0.92

1.58

− 0.11

5.5

1.04

− 1.09

0.26

0.16

− 0.87

− 0.51

0.89

− 1.57

1.02

6.0

1.52

− 2.16

− 0.18

0.14

− 0.36

0.26

1.38

− 0.71

− 0.74