Process for preparing fish bone powder
AssigneeThai Union Group Public Company Limited
InventorsTunyawat Kasemsuwan, Supaporn Boontiang
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Abstract
A process for preparing fish bone powder according to this invention generally comprising at least 4 steps: pre-heating, removing of impurity, drying and milling to derive a calcium-rich bone powder product that contains calcium in the range of 18-22 g/100 g of the fmal product. In addition, the bone powder particle size obtained is less than 100 microns and contains high levels of protein, fat, and essential minerals, such as sodium and phosphorus. The source of bone can be obtained from any fishes, preferably from tuna.
Claims19
A process for preparing fish bone powder comprising the following steps:
- (a) pre-treating a fish bone, pre-treating the fish bone comprising:
- removing meat from the fish bone;
- reducing the size of the fish bone to 0.5-2 cm;
- and
- washing the fish bone with water after reducing the size of the fish bone;
- (b) removing non-polar components from the pre-treated fish bone obtained from step (a) with an alkali solution by heating a mixture of the pre-treated fish bone and the alkali solution for 0.75-2 h, wherein the alkali concentration in the alkali solution is in the range of 0.2-1% w/v;
- (c) removing protein components from the fish bone obtained from step (b) with a protease enzyme by incubating a mixture of the fish bone and the protease enzyme for 0.5-1.5 h;
- (d) drying the fish bone obtained from step (c);
- and
- (e) milling or pulverizing the fish bone obtained from step (d) to provide the fish bone powder,
- wherein a fat content in the fish bone powder is 0.5-2 wt. %.
A process for preparing fish bone powder, comprising:
- pre-treating a fish bone to provide a pre-treated fish bone, pre-treating the fish bone comprising:
- removing meat from the fish bone;
- reducing the size of the fish bone to 0.5-2 cm;
- and
- washing the fish bone with water after reducing the size of the fish bone to provide the pre-treated fish bone;
- processing the pre-treated fish bone in an alkali solution for 0.75-2 h followed by a protease enzyme for 0.5-1.5 h to provide a treated fish bone;
- drying the treated fish bone to provide a dried fish bone;
- and
- milling or pulverizing the dried fish bone to provide the fish bone powder,
- wherein the fish bone powder comprises mineral contents selected from the group consisting of calcium 18-22 g/100 g, phosphorus 5-15 g/100 g, sodium 0.5-1.5 g/100 g, magnesium 0.1-0.5 g/100 g and potassium 0.01-0.1 g/100 g, and
- wherein a fat content in the fish bone powder is 0.5-2 wt. %.
Dependencies are inferred from the claim text.