Table 7.
Texture profile analysis result of extrudates from mixed protein (RPC:YPI) at different screw speeds and target moisture contents.
| Screw Speed (rpm) | MC (%) | SME (kJ/kg) | Texture Attributes | |||
|---|---|---|---|---|---|---|
| Hardness (g) | Springiness | Resilience | Chewiness (g) | |||
| 500 | 60 | 503 ± 0 a | 6715 ± 17 aA | 0.84 ± 0.02 aA | 0.61 ± 0.01 aA | 5698 ± 8 aA |
| 63 | 457 ± 16 b | 5807 ± 208 bA | 0.93 ± 0.07 aB | 0.57 ± 0.01 bA | 4832 ± 157 bA | |
| 65 | 453 ± 0 b | 4865 ± 71 cA | 0.94 ± 0.06 aA | 0.49 ± 0.01 cA | 3922 ± 81 cA | |
| 70 | 412 ± 21 c | 1850 ± 135 dA | 0.88 ± 0.02 aA | 0.47 ± 0.02 cAB | 1501 ± 117 dA | |
| 700 | 60 | 859 ± 30 a | 6714 ± 33 aA | 0.93 ± 0.06 aA | 0.63 ± 0.02 aA | 5716 ± 50 aA |
| 63 | 816 ± 36 b | 3736 ± 161 bB | 0.88 ± 0.01 aA | 0.52 ± 0.08 abA | 3467 ± 399 bB | |
| 65 | 774 ± 0 c | 3677 ± 81 bB | 0.87 ± 0.02 aA | 0.50 ± 0.03 bA | 3114 ± 190 bA | |
| 70 | 824 ± 34 b | 694 ± 188 cB | 0.90 ± 0.09 aA | 0.51 ± 0.02 bA | 537 ± 133 cB | |
| 900 | 60 | 1267 ± 0 a | 4166 ± 276 aB | 0.87 ± 0.06 aA | 0.62 ± 0.03 aA | 3464 ± 391 aB |
| 63 | 1213 ± 47 b | 2857 ± 92 bC | 0.87 ± 0.06 aA | 0.55 ± 0.03 abA | 2343 ± 69 bB | |
| 65 | 1195 ± 38 b | 1664 ± 24 cC | 0.90 ± 0.09 aA | 0.52 ± 0.01 bA | 1278 ± 97 cB | |
| 70 | 1276 ± 29 a | 1083 ± 157 dB | 0.89 ± 0.11 aA | 0.43 ± 0.04 cB | 837 ± 131 cB | |
All values are presented as mean ± standard deviation. Different lowercase letters indicate a significant difference between different target moisture content at the same screw speed, and different uppercase letters indicate a significant difference between different screw speeds at the same target moisture content (Tukey’s test, p < 0.05). MC = moisture content, SME = specific mechanical energy.