Table 2.
Available data on butyrate concentrations in human milk.
| References | N° samples | N° mothers |
Min value (mM) |
Max value (mM) |
Methods |
|---|---|---|---|---|---|
| Maria et al. (68) | 150 | 30 | 0.1 | 0.23 | GC-MS utilizing a lipase assisted sample preparation (deuterated butyric acid (BA-D7) as an internal standard) |
| Schwab et al. (70) | 19 | 19 | 1.36 | 5.7 | HPLC-RI with external standard |
| Prentice et al. (69) | 102 | 102 | 0.0 | 0.4 | H-NMR and GC-MS |
| Dai et al. (67) | 180 | 60 | 0.29 | 0.48 | Methyl esterification of SCFAs and GC analysis |
GC-MS, gas chromatography-mass spectrometry; HPLC-RI, high performance liquid chromatography with refractive index detection; H-NMR, nuclear magnetic resonance spectroscopy; SCFAs, short chain fatty acids.