Table 2.

The correlation analysis between secondary structure and degree of hydrolysis.

Content of secondary structure	SPI-A	SPI-B	SPI-C	SPI-D	SPI-E
α-helix	0.08	0.38	0.95∗∗	0.51	0.41
β-turn	−0.94∗∗	−0.86∗∗	−0.88∗∗	−0.91∗∗	−0.78∗
Random coil	0.85∗	0.67	0.89	0.85	0.88
β-sheet	−0.98∗∗	−0.86∗∗	−0.98∗∗	−0.84∗∗	−0.77∗
Parallel β-sheet	−0.98∗∗	−0.98∗∗	−0.97∗∗	−0.83∗	−0.73∗
Antiparallel β-sheet	0.89∗∗	0.99∗∗	0.47	0.72∗	0.57

∗ means significant correlation (P < 0.05).

∗∗ means significant correlation (P < 0.01).