Table 2.
Molecular weight distributions of fully branched and debranched starches a.
| Rice Variety | Fully Branched Starch | Debranched Starch | |||||
|---|---|---|---|---|---|---|---|
| AP (%) b | IC (%) b | ACB (%) b | AP-S (%) c | AP-L (%) c | ACD (%) c | AP-S/L c | |
| Changjiang II | 87.1 ± 0.7 d | 6.6 ± 0.6 a | 6.3 ± 0.3 a | 68.7 ± 0.2 d | 21.1 ± 0.2 a | 10.2 ± 0.1 a | 3.25 ± 0.04 c |
| 9311 | 85.2 ± 1.2 d | 6.7 ± 0.6 a | 8.0 ± 1.0 a | 63.6 ± 0.9 c | 20.8 ± 0.4 a | 15.6 ± 1.3 b | 3.05 ± 0.01 bc |
| Wuyunjing 8 | 79.0 ± 0.7 b | 8.6 ± 0.6 bc | 12.4 ± 0.4 bc | 61.1 ± 1.2 c | 20.5 ± 0.6 a | 18.4 ± 0.6 c | 2.98 ± 0.15 bc |
| Huanghuazhan | 81.8 ± 0.7 c | 7.5 ± 0.6 ab | 10.7 ± 0.8 b | 61.9 ± 0.7 c | 20.7 ± 0.4 a | 17.5 ± 1.1 bc | 3.00 ± 0.02 bc |
| Guihuahuang | 76.9 ± 0.9 b | 8.8 ± 1.0 bc | 14.3 ± 1.9 cd | 58.7 ± 0.7 b | 20.1 ± 0.4 a | 21.2 ± 0.3 d | 2.92 ± 0.09 b |
| Teqing | 74.3 ± 1.2 a | 9.2 ± 0.4 c | 16.4 ± 1.2 d | 53.8 ± 0.4 a | 20.2 ± 0.2 a | 26.0 ± 0.2 e | 2.66 ± 0.05 a |
a Data are the means ± standard deviations, n = 3. Values in the same column with different letters are significantly different (p < 0.05). b AP, IC, and ACB are the content of amylopectin, intermediate component, and amylose of fully branched starch, respectively. c AP-S, AP-L, and ACD are the content of amylopectin short branch-chains, amylopectin long branch-chains, and amylose of debranched starch, respectively. AP-S/L is the content ratio of amylopectin short to long branch-chains.