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Physical parameters of the examined human breast milk compared to cow’s milk.
| Parameter | Human breast milk a | Cow milka |
|---|---|---|
| pH | 7.74 ± 0.17 (22 °C) | 6.6–6.75 (25 °C) |
| Water activity (aw) | 0.995 ± 0.001 (25 °C) | ~0.993 |
| Refractive index | 1,3465 ± 0.0005 (24 °C) | 1.3440 - 1.3485 (20 °C) |
| Freezing point | -0.523 to -0.565 °C | -0.525 to -0.565 °C |
Mean ±standard deviation; n=3 independent milk samples.
