Table 2.
Samples | PV (mPa·s) | TV (mPa·s) | BD (mPa·s) | FV (mPa·s) | SB (mPa·s) | Gel Strength (N) | Hardness (N) |
---|---|---|---|---|---|---|---|
Control | 321.33 ± 8.58e | 311.00 ± 7.35e | 10.33 ± 1.25d | 388.33 ± 11.8e | 77.33 ± 4.50e | 0.37 ± 0.02d | 0.47 ± 0.02f |
CT-3 | 150.33 ± 2.05d | 141.33 ± 2.05d | 9.00 ± 0.00d | 206.00 ± 3.27d | 64.33 ± 1.25d | 0.19 ± 0.02c | 0.36 ± 0.02e |
CT-6 | 76.33 ± 2.87c | 71.00 ± 3.27c | 5.67 ± 0.47c | 114.00 ± 4.08c | 43.00 ± 0.82c | 0.11 ± 0.01b | 0.17 ± 0.00c |
CT-9 | 61.00 ± 0.82ab | 57.33 ± 0.47ab | 3.33 ± 0.47ab | 87.33 ± 0.47ab | 30.00 ± 0.00b | 0.07 ± 0.00a | 0.11 ± 0.00a |
CT-12 | 55.00 ± 5.72a | 52.67 ± 5.25a | 2.33 ± 0.47a | 76.67 ± 7.59a | 24.00 ± 2.45a | 0.06 ± 0.00a | 0.10 ± 0.00a |
RT-2 | 81.00 ± 0.82c | 74.67 ± 1.25c | 4.67 ± 0.47bc | 121.67 ± 0.94c | 45.67 ± 0.94c | 0.12 ± 0.01b | 0.20 ± 0.01d |
RT-3 | 67.00 ± 0.00b | 63.33 ± 0.47b | 3.67 ± 0.47ab | 94.33 ± 1.70b | 31.00 ± 2.16b | 0.08 ± 0.00a | 0.14 ± 0.02b |
RT-4 | 59.00 ± 2.45ab | 55.00 ± 1.63a | 4.00 ± 0.82b | 82.00 ± 4.90ab | 27.00 ± 3.27ab | 0.06 ± 0.01a | 0.10 ± 0.00a |
Note: CS, native chestnut starch; CT-3, CT-6, CT-9, CT-12, preparation of chestnut starch by continuous dry heat treatment for 3 h, 6 h, 9 h, 12 h, respectively; RT-2, RT-3, RT-4, preparation of chestnut starch by repeated dry heat treatment for two cycles, three cycles, four cycles, respectively. Results are showed as mean values ± SD in triplicate. The different letter showed the significant difference (p < 0.05). PV is peak viscosity; TV represents trough viscosity; FV is final viscosity; BD is breakdown viscosity; SB is setback viscosity.