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. 2022 Nov 2;11(21):3480. doi: 10.3390/foods11213480

Table 1.

The effects of ethanol (15% v/v) and different levels of rutin (0.05%, 0.1%, 0.2% and 0.3% w/v) on the secondary structure of WPI. Means in the same row with different letters (a–d) differ significantly (p < 0.05).

Secondary Structure (%) WPI WPI + Ethanol WPI + Ethanol + Rutin (%)
0.05 0.1 0.2 0.3
α-helix 25.06 ± 0.02 c 19.79 ± 0.35 cd 14.51 ± 0.46 d 35.96 ± 0.01 b 41.24 ± 0.01 b 57.42 ± 0.45 a
β-Folding 42.83 ± 0.00 b 46.94 ± 0.27 ab 51.05 ± 1.92 a 34.34 ± 0.00 c 30.23 ± 0.00 c 17.63 ± 0.25 d
β-turning 19.97 ± 0.01 a 20.81 ± 0.05 a 21.65 ± 0.40 a 18.24 ± 0.02 b 17.40 ± 0.00 b 14.82 ± 0.87 c
Irregular curl 12.14 ± 0.02 b 12.46 ± 0.02 ab 12.79 ± 0.16 a 11.46 ± 0.00 c 11.13 ± 0.00 c 10.13 ± 0.34 d