Table 3.
Effect of soaking and cooking on trypsin inhibitory activity of pulses and soybean
| Type | Trypsin inhibitory activity (TIU/mg dry matter) | ||
|---|---|---|---|
| Raw | Soaked | Cooked | |
| Pea | |||
| Whole yellow pea | 3.16 ± 0.04aO | 2.62 ± 0.11b (17.34) | 0.59 ± 0.02c (81.25) |
| Split yellow pea | 4.18 ± 0.13aN | 2.90 ± 0.08b (30.74) | ndc (100) |
| Whole green pea | 4.65 ± 0.09aMN | 3.78 ± 0.07b (18.56) | 0.99 ± 0.00c (78.74) |
| Split green pea | 4.92 ± 0.12aLMN | 3.86 ± 0.09b (21.61) | ndc (100) |
| Lentil | |||
| Whole red lentil | 5.99 ± 0.19aHIJ | 5.42 ± 0.23b (9.59) | ndc (100) |
| Split red lentil | 6.29 ± 0.35aH | 5.07 ± 0.36b (19.35) | ndc (100) |
| Football red lentil | 5.88 ± 0.26aHIJK | 4.94 ± 0.58b (15.89) | ndc (100) |
| Spanish brown lentil | 4.98 ± 0.08aLM | 4.39 ± 0.22b (11.90) | ndc (100) |
| Split yellow lentil | 5.17 ± 0.21aKLM | 4.32 ± 0.03b (16.51) | ndc (100) |
| French green lentil | 5.14 ± 0.07aKLM | 4.24 ± 0.14b (17.64) | ndc (100) |
| Large green lentil | 6.21 ± 0.21aHI | 5.67 ± 0.10b (8.71) | ndc (100) |
| Medium green lentil | 5.40 ± 0.09aJKLM | 5.10 ± 0.14b (5.57) | ndc (100) |
| Split queen green lentil | 5.46 ± 0.10aIJKL | 4.21 ± 0.10b (22.93) | ndc (100) |
| Faba bean | |||
| Whole faba bean | 5.96 ± 0.27aHIJ | 5.20 ± 0.10b (12.73) | ndc (100) |
| Split faba bean | 6.10 ± 0.34aHIJ | 4.72 ± 0.31b (22.59) | ndc (100) |
| Chickpea | |||
| Whole chickpea B90 | 14.22 ± 0.13aG | 12.89 ± 0.26b (9.39) | 2.29 ± 0.07c (83.92) |
| Split chickpea B90 | 16.24 ± 0.24aDE | 12.14 ± 0.39b (25.27) | 1.89 ± 0.03c (88.37) |
| Desi chickpea | 15.96 ± 0.22aEF | 13.85 ± 0.21b (11.19) | 1.88 ± 0.21c (87.95) |
| Bean | |||
| Dark red kidney bean | 17.77 ± 0.27aC | 16.90 ± 0.18b (4.88) | 1.32 ± 0.06c (92.58) |
| Pinto bean | 15.18 ± 0.10aF | 13.80 ± 0.54b (9.09) | 0.99 ± 0.07c (93.46) |
| Navy bean | 16.44 ± 0.45aD | 15.02 ± 0.73b (8.63) | 1.36 ± 0.03c (91.72) |
| Black bean | 20.83 ± 0.33aB | 19.55 ± 0.26b (6.18) | 1.31 ± 0.08c (93.70) |
| Soybean | 45.89 ± 0.51aA | 37.37 ± 0.57b (18.58) | 3.29 ± 0.23c (92.83) |
Row values followed by different superscript lowercase letters are significantly different (P < 0.05) as determined using Tukey’s test
Column values for raw samples followed by different superscript uppercase letters are significantly different (P < 0.05) as determined using Tukey’s test
Values in parentheses indicate % decrease over raw values
Mean ± SD of three determinations
nd not detected