Table 4.
Effects of HPP on indigenous milk enzymes.
| Enzyme | Pressure (MPa) | Effect | Reference |
|---|---|---|---|
| ALP | 400 | Resistant up to this pressure | [54,58] |
| 600 | 50% reduction | ||
| 800 | Complete inactivation | ||
| LPO | 400 | Resistant up to this pressure | [7,54,56] |
| GGT | 350 | Partial inactivation | [47] |
| 400 | Resistant up to this pressure | [7,54,56] | |
| 550 | Complete inactivation | [47] | |
| 600 | Complete inactivation | [56] | |
| PHI | 400 | Partial inactivation | [47] |
| 500 | Complete inactivation | [56] | |
| 630 | Complete inactivation | [47] | |
| Lipase | 400 | No change in enzyme activity | [59] |
ALP = alkaline phosphatase; LPO = lactoperoxidase; GGT = γ-glutamyl transferase; PHI = phosphohexose isomerase.