Sample Secondary structure content (%) Secondary structure content (%) Secondary structure content (%) Secondary structure content (%)
ɑ-helix β-sheets β-turns Random coil
Untreated 11.81±0.28a 47.16±0.72c 27.21±0.41d 12.86±0.33a
R15 14.48±0.32b 47.57±0.29c 15.40±0.31a 12.52±0.26a
R20 19.75±0.34d 48.56±0.48c 20.42±0.35b 11.26±0.23a
R30 24.44±0.41e 39.91±0.32b 19.98±0.25b 14.47±0.32b
S15 15.38±0.43b 47.21±0.37c 22.48±0.24c 12.72±0.36a
S20 18.87±0.36c 46.21±0.63c 20.69±0.27b 13.15±0.23a
S30 25.92±0.32f 36.67±0.33a 19.19±0.19b 16.85±0.22c