Table 2 Proximal, mineral and elemental composition of different Ca sources.
Component | Salmon bone (protease)1 | Salmon bone (boiling)1 | Salmon bone (protease) | Cod bone (boiling) | Calcium supplement from Pharmacy or health store | |||
|---|---|---|---|---|---|---|---|---|
A | B | C | D 1 | |||||
Ash (g/100 g) | 55.5 | 43 | 67.8 | 65.7 | 0 | 2.8 | 90.9 | 78.9 |
Protein (g/100 g) | 36 | 35.7 | 26.6 | 32.4 | 0.46 | 0.50 | 0.74 | 0.56 |
Fat (g/100 g) | 3.0 | 17.8 | <0.2 | 7.9 | 0 | 0 | 0 | 0 |
Minerals (g/kg dry weight) | ||||||||
Ca | 208 | 157 | 261 | 248 | 0.04 | 24 | 336 | 324 |
K | 1.3 | 3.2 | 0.03 | 2.3 | 0.069 | 0.083 | 1.3 | 0.095 |
Mg | 4.1 | 2.6 | 3.2 | 3.5 | 0.004 | 0.085 | 29 | 1.8 |
Na | 1.9 | 3.1 | 2.1 | 6.0 | 0.024 | 0.28 | 5.9 | 0.27 |
P | 156 | 89 | 151 | 180 | <0.04 | <0.04 | 0.95 | 0.77 |
Essential trace elements (mg/kg dry weight) | ||||||||
Cu | 17.1 | 4.5 | 0.5 | 3.9 | <0.3 | <0.3 | 1.0 | 0.6 |
Fe | 24 | 20 | 69 | 19 | < 0.5 | 7.0 | 3500 | 150 |
I | 0.28 | <0.02 | 0.14 | 3.7 | n.d. | 0.11 | 16.2 | 0.06 |
Mn | 66 | 36 | 3.2 | 28 | <0.02 | 4.2 | 141.8 | 15.5 |
Se | 0.3 | 0.4 | 0.5 | 0.4 | <0.1 | <0.1 | 0.2 | <0.1 |
Zn | 174 | 106 | 57 | 58 | <0.1 | 0.5 | 8.4 | 1.9 |
Non-essential elements (mg/kg dry weight) | ||||||||
As | 0.34 | 1.5 | 0.11 | 0.61 | <0.01 | 0.01 | 2.53 | 1.07 |
Cd | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | 0.12 | 0.08 |
Hg | 0.01 | 0.02 | <0.03 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 |
Pb | 0.11 | 0.05 | <0.04 | 0.06 | <0.02 | 0.03 | 3.03 | 0.09 |