Table IV.
Release of VPP and IPP in differently pretreated skimmed milk after incubation with L. helveticus strain FAM 12111 at 37 °C for 24 h (mean ± SD; n = 2).
| Milk pretreatment | Conditions | VPP (mg·kg−1) | IPP (mg·kg−1) |
|---|---|---|---|
| Microfiltration | 55 °C, several seconds | 2.2 ± 0.1 | 2.0 ± 0.0 |
| Pasteurization | 78 °C, several seconds | 4.4 ± 0.5 | 3.8 ± 0.4 |
| Pasteurization | 90 °C, 30 min | 14.2 ± 1.3 | 7.6 ± 0.9 |
| UHT | 135 °C, 5 s | 13.3 ± 0.1 | 7.9 ± 0.6 |