Table 4.
Differences of molecular weight and chain length distribution of starch among different japonica rice.
| Cultivar | Molecular Weight (Da) | Chain Length Proportion of Amylose (%) | Chain Length Proportion of Amylopectin (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Starch | Amylose | Amylopectin | 100 < X ≤ 1000 | 1000 < X ≤ 2000 | 2000 < X ≤ 20,000 | Fa (DP6–12) | Fb1 (DP13–24) | Fb2 (DP25–36) | Fb3 (DP37–100) | Average Chain Length | |
| Daohuaxiang2 | 3493860 ± 9468 a | 183319 ± 566 a | 5341014 ± 5658 a | 6.23 ± 0.11 a | 3.09 ± 0.03 a | 5.24 ± 0.05 a | 28.00 ± 0.04 b | 44.12 ± 0.01 c | 11.92 ± 0.03 a | 15.96 ± 0.03 a | 21.87 ± 0.04 a |
| Nangeng46 | 2221393 ± 7797 b | 167127 ± 366 b | 3091176 ± 5284 b | 4.61 ± 0.03 b | 1.70 ± 0.02 b | 3.19 ± 0.02 b | 30.49 ± 0.02 a | 45.25 ± 0.03 b | 11.65 ± 0.02 b | 12.61 ± 0.03 c | 20.15 ± 0.04 c |
| Nangeng2728 | 1975251 ± 6772 c | 167713 ± 713 b | 2815500 ± 5335 c | 4.61 ± 0.01 b | 1.24 ± 0.04 c | 2.19 ± 0.02 c | 24.40 ± 0.01 c | 49.45 ± 0.01 a | 11.65 ± 0.01 b | 14.50 ± 0.01 b | 21.34 ± 0.01 b |
Data are expressed as the mean ± SD (n = 3). Values for each index within a column followed by different lowercase letters are significantly different at the 5% probability level.