Table 4 Foaming capacity (%) and foaming stability (%) of red blood cell (RBC) and its hydrolysate (RBCH) with different pH values ^a

2

12.67 ± 0.94aB

39.38 ± 0.88aA

9.83 ± 0.89aB

30.00 ± 1.41aA

4

11.50 ± 0.24bB

28.75 ± 0.35bA

9.66 ± 0.05aB

16.00 ± 1.71cA

6

3.33 ± 0.01eB

10.25 ± 0.35dA

0.67 ± 0.09cB

8.50 ± 0.38dA

8

6.67 ± 0.14 dB

26.50 ± 0.71cA

5.67 ± 0.94bB

18.75 ± 1.06bA

10

10.00 ± 0.94cB

28.75 ± 0.35bA

6.33 ± 0.01bB

19.50 ± 1.41bA