Table 1.
Summary of obtained results for I (1050/1110) and I (1020/1110) parameters detected by FTIR, contact angle, and AFM parameters for native starch, unmodified, or modified SNCs and SNPs.
| Sample | I(1050/1110) | I(1020/1110) | Contact angle (o) | AFM parameters |
|
|---|---|---|---|---|---|
| Rq (nm) | Ra (nm) | ||||
| Native | 1.22 ± 0.02a | 1.31 ± 0.01a | 36.3 ± 0.7a | 14.7 ± 0.2a | 5.3 ± 0.1a |
| SNC | 1.56 ± 0.02h | 1.61 ± 0.04cd | 44.8 ± 0.7cd | 22.7 ± 0.7d | 9.9 ± 0.3c |
| SNC-P0 | 1.55 ± 0.02h | 1.60 ± 0.04c | 43.8 ± 0.7c | 20.1 ± 0.6c | 8.0 ± 0.1b |
| SNC-P2 | 1.44 ± 0.02e | 1.63 ± 0.05d | 53.8 ± 0.6f | 29.4 ± 0.4g | 13.5 ± 0.2e |
| SNC-P4 | 1.44 ± 0.01e | 1.67 ± 0.01f | 57.2 ± 0.6g | 31.8 ± 0.7h | 19.5 ± 0.2g |
| SNC-P6 | 1.39 ± 0.02c | 1.67 ± 0.01f | 70.4 ± 0.9i | 38.1 ± 0.7i | 23.7 ± 0.3h |
| SNP | 1.47 ± 0.01f | 1.58 ± 0.01b | 41.3 ± 0.6b | 19.4 ± 0.4b | 8.2 ± 0.2b |
| SNP-P0 | 1.49 ± 0.01g | 1.64 ± 0.02e | 45.2 ± 0.5d | 21.4 ± 0.3d | 10.6 ± 0.4c |
| SNP-P2 | 1.40 ± 0.02c | 1.69 ± 0.01g | 49.3 ± 0.7e | 24.4 ± 0.5e | 11.8 ± 0.3d |
| SNP-P4 | 1.42 ± 0.01d | 1.73 ± 0.02h | 53.9 ± 0.6f | 27.4 ± 0.7f | 13.6 ± 0.2e |
| SNP-P6 | 1.33 ± 0.02b | 1.78 ± 0.02i | 63.0 ± 0.9h | 29.5 ± 0.7g | 17.9 ± 0.3f |
The means in each column with various letters (a–i) are significantly different (p < 0.05) according to Duncan's test.