Parameter

T0

T1

T2

Moisture (CU)

41.853 ± 12.391

45.740 ± 11.356*

50.520 ± 11.823*

Biological elasticity (R2)

0.556 ± 0.060

0.609 ± 0.062*

0.641 ± 0.054*

Relative elastic recovery (R7)

0.382 ± 0.055

0.414 ± 0.067*

0.430 ± 0.047*

Average wrinkle roughness, Ra (mm)

0.044 ± 0.012

0.042 ± 0.012*

0.038 ± 0.012*

Average wrinkle height, Rz (mm)

0.163 ± 0.046

0.155 ± 0.045*

0.143 ± 0.043*

Specular brightness rate

0.322 ± 0.220

0.365 ± 0.211*

0.403 ± 0.216*