Table 3.
Thermal properties of pea protein aggregates isolated by membrane ultrafiltration after heat treatment (100°C) at different pH values.
| Samples* | Onset temperature (To)°C† | Maximum temperature (Td)°C† | ΔH (J/g of sample)† |
|---|---|---|---|
| PPC | 66.50 ± 0.20d | 74.45 ± 1.50e | 0.06 ± 0.01c |
| FT3 | 89.15 ± 0.04c | 124.30 ± 0.5d | 1.43 ± 0.04b |
| FT5 | 160.12 ± 6.20b | 190.66 ± 1.56b | 2.47 ± 0.33a |
| FT7 | 176.56 ± 3.30a | 206.33 ± 0.17a | 1.87 ± 0.15a |
| FT9 | 171.36 ± 0.5a | 203.17 ± 0.38a | 1.58 ± 0.61a |
For each column, different letters indicate significant differences (p ≤ 05).
Untreated pea protein concentrate (PPC) and the >50 kDa protein aggregates formed at pH 3.0 (FT3), 5.0 (FT5), 7.0 (FT7), and 9.0 (FT9).
Mean of triplicate determinations ± standard deviation.