Abstract: It is intended to provide a liquid oral composition and a liquid food composition in which calcium phosphate such as hydroxyapatite or tricalcium phosphate can be stably dispersed and prevented from being precipitated or separated out even in long-term storage. Calcium phosphate mixed with xanthan gum and polyglycerin fatty acid ester can be stably dispersed even in long-term storage and prevented from being precipitated or separated out even when used in liquid oral compositions such as mouthwashes, liquid dentifrices, and oral detergents or in liquid food compositions such as milk, soy milk, yoghurt, and refreshing beverages. In addition, calcium phosphate mixed with xanthan gum and polyglycerin fatty acid ester further supplemented with an amphoteric surfactant can be more effectively prevented from being precipitated or separated out in liquid oral compositions such as mouthwashes, liquid dentifrices, and oral detergents.

Abstract: It is intended to provide a liquid oral composition and a liquid food composition in which calcium phosphate such as hydroxyapatite or tricalcium phosphate can be stably dispersed and prevented from being precipitated or separated out even in long-term storage. Calcium phosphate mixed with xanthan gum and polyglycerin fatty acid ester can be stably dispersed even in long-term storage and prevented from being precipitated or separated out even when used in liquid oral compositions such as mouthwashes, liquid dentifrices, and oral detergents or in liquid food compositions such as milk, soy milk, yoghurt, and refreshing beverages. In addition, calcium phosphate mixed with xanthan gum and polyglycerin fatty acid ester further supplemented with an amphoteric surfactant can be more effectively prevented from being precipitated or separated out in liquid oral compositions such as mouthwashes, liquid dentifrices, and oral detergents.

Abstract: Disclosed is an agent for preventing the adhesion of water borne organisms, in which a calcium phosphate-based compound is made to carry, by adsorption and/or ion exchange, preferably not more than 15% by weight of at least one metal or metal ion selected from the group consisting of silver, copper, zinc and nickel. Also disclosed is a paint in which 0.1%-30% by weight of this agent is mixed.

Abstract: Antimicrobial hydroxyapatite powders containing hydroxyapatite power and one or more organic antimicrobial agents selected from hinokitiol, protamine and sorbic acid.

Abstract: Antimicrobial hydroxyapatite powders containing hydroxyapatite powder and metal ions selected from silver, copper and zinc ions or one or more antimicrobial agents selected from hinokitiol, tannin, lysozyme, protamine and sorbic acid.

Abstract: Apatite containing immobilized glucanase for decomposition of polysaccharies associated with dental carries is prepared by adding dropwise glutaraldehyde to an aqueous solution in which glucanase, protein and apatite are present in a mixed state. The protein in preferably lysozyme.