Table 1.
Percentage of SF polypeptides, including values obtained for heavy chains and light chains, detected in SF aqueous dissolutions, depending on the treatment applied to the silkworm cocoons (before the degumming and dissolution of the raw SF).
| 350 kDa heavy chain (HC) | (350-25) kDa | 25 kDa light chain (LC) | <25 kDa | LC/HC | |
|---|---|---|---|---|---|
| Negative control | 4.22 ± 0.07 | 68.31 ± 1.24 | 10.22 ± 0.68 | 17.25 ± 0.57 | 2.42 ± 0.15 |
| Sun exposure (5 d) | 1.86 ± 0.20* | 73.01 ± 0.82* | 7.58 ± 1.07 | 17.55 ± 1.96 | 4.07 ± 0.20 |
| Water vapour (3 h) | 1.05 ± 0.21* | 74.15 ± 1.06* | 7.21 ± 0.84 | 17.57 ± 0.16 | 6.95 ± 0.68 |
| Dry heat 55 °C (7 h) | 0.50 ± 0.04* | 74.67 ± 0.86* | 7.39 ± 1.23 | 17.44 ± 0.58 | 14.68 ± 1.25* |
| Dry heat 70 °C (7 h) | 0.32 ± 0.02* | 74.48 ± 0.85* | 6.47 ± 1.42* | 18.73 ± 0.61 | 20.14 ± 3.40* |
| Dry heat 85 °C (7 h) | 0.36 ± 0.08* | 76.12 ± 0.67* | 5.82 ± 0.61* | 17.70 ± 0.03 | 16.25 ± 2.19* |
The values obtained for the ratio between the percentages of light and heavy chains (LC/HC) are expressed in the last column.
*Statistically different values compared to negative control (Bonferroni, p < 0.01).