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US 7,101,432 B2Granted
Process for producing crystalline tagatose
AssigneeNihon Shokuhin Kako Co., Ltd.
InventorsTakehiro Unno, Yoshimi Watanabe, Mikio Yamamoto
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AssigneeNihon Shokuhin Kako Co., Ltd.
InventorsTakehiro Unno, Yoshimi Watanabe, Mikio Yamamoto
Estimating the term…
The present invention provides a method for producing tagatose crystals from an aqueous system using no organic solvent. In this method, seed crystals of tagatose are added to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallization of tagatose is carried out by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower. It is preferred that the solution containing tagatose is a solution containing no organic solvent. It is further preferred that a part of massecuite for which the crystallization is completed is added to a mother liquor so as to produce the tagatose crystals semi-continuously or continuously. It is furthermore preferred that the tagatose crystals formed from the massecuite are separated by centrifugation or filtration and dried to obtain tagatose crystals.
A method for producing tagatose crystals, characterized by adding seed crystals of tagatose to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallizing tagatose by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower,
A method for producing tagatose crystals, characterized by adding seed crystals of tagatose to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallizing tagatose by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower,
A method for producing tagatose crystals, characterized by adding seed crystals of tagatose to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallizing tagatose by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower,
A method for producing tagatose crystals, characterized by adding seed crystals of tagatose to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallizing tagatose by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower,
A method for producing tagatose crystals, characterized by adding seed crystals of tagatose to a tagatose solution in which a tagatose purity of solid contents in the solution is at least 70% and a solid contents concentration in the solution is 60 to 98 mass %, and crystallizing tagatose by stirring and cooling the solution while keeping a degree of super saturation of tagatose at 1.25 or lower,
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