PROBLEM TO BE SOLVED: To provide a solubilizing agent in which polyglycerin fatty acid ester is used and which can be used in foods, medicines and cosmetics and can give a solubilization composition, which disperses an oil-soluble substance minutely in a water phase without using a special emulsifying machine even when a large quantity of the oil-soluble substance is blended and which has high transparency, and to provide foods, medicines and cosmetics in each of which the solubilizing agent is used.SOLUTION: The solubilizing agent is composed of polyglycerin fatty acid ester. A fatty acid constituting the polyglycerin fatty acid ester is composed of one or more saturated fatty acids (a) selected from 8-22C saturated fatty acids and one or more unsaturated fatty acids (b) selected from 16-22C unsaturated fatty acids. The molar ratio ((a)/(b)) of the saturated fatty acids (a) to the unsaturated fatty acids (b) is within 0.2/0.8 to 0.8/0.2. Foods, medicines and cosmetics in each of which the solubilizing agent is used are provided.COPYRIGHT: (C)2008,JPO&INPIT【課題】ポリグリセリン脂肪酸エステルを用い、食品、医薬品、化粧品に利用することができる可溶化剤であって、油溶性物質が多量に配合された場合であっても、特殊な乳化機等用いることなく、油溶性物質を水相中に微細に分散し、透明性が高い可溶化組成物を与えることができる可溶化剤、及びこの可溶化剤を利用した食品、医薬品または化粧品を提供する。【解決手段】ポリグリセリン脂肪酸エステルからなり、前記ポリグリセリン脂肪酸エステルを構成する脂肪酸は、炭素数8~22の飽和脂肪酸から選択される一種以上の飽和脂肪酸(a)と炭素数16~22の不飽和脂肪酸から選択される一種以上の不飽和脂肪酸(b)とからなり、飽和脂肪酸(a)と不飽和脂肪酸(b)のモル比率が、(a)/(b)=0.2/0.8~0.8/0.2の範囲内にあることを特徴とする可溶化剤、及びこの可溶化剤を利用した食品、医薬品または化粧品。【選択図】なし
