PROBLEM TO BE SOLVED: To provide a stable coated oil particle where oil is coated with particulates of a water sparingly soluble inorganic calcium salt, having an average particle diameter of &le5 &mum, an emulsion, and their production method.SOLUTION: The particulates of the water sparingly soluble inorganic calcium salt having an average particle diameter of &le1 &mum are stuck onto the surface of an oil particle to obtain the coated oil particle having an average particle diameter of &le5 &mum. It is preferable that a weight ratio of the particulate water sparingly soluble inorganic calcium salt stuck onto the surface to the oil particle is &ge10/10 and <100/10. It is preferable that the particulate oil contains a compound having a carboxyl group. The emulsion is prepared by dispersing the coated oil particles in water.COPYRIGHT: (C)2006,JPO&NCIPI【課題】油分が水難溶性無機カルシウム塩の微粒子によって被覆された平均粒径が5μm以下の安定な被覆油粒子、乳化物、およびそれらの製造方法を提供する。【解決手段】油粒子の表面に平均粒径1μm以下の水難溶性無機カルシウム塩の微粒子を付着させて平均粒径が5μm以下の被覆油粒子を得る。前記表面に付着している微粒子状の水難溶性無機カルシウム塩と前記油粒子との重量比を、10/10以上、100/10未満の範囲とすることが好ましい。前記粒子状の油にカルボキシル基を有する化合物を含有させることが好ましい。乳化物は、前記被覆油粒子が、水分中に分散されてなる。【選択図】 なし
