PROBLEM TO BE SOLVED: To provide a method for inhibiting the discoloration of a catechin-incorporated fat-and-oil stemming from heating the catechin-incorporated fat-and-oil to high temperatures.SOLUTION: The method for inhibiting the discoloration of a catechin-incorporated fat-and-oil stemming from heating the catechin-incorporated fat-and-oil to high temperatures is provided, involving using a catechin-incorporated oily preparation in which the respective compounding amounts of a catechin compound, an emulsifier and water are under control within a given range. This oily preparation is easy to produce, high in stability of its own, and excellent in solubility and antioxidative property when added to an oily composition.COPYRIGHT: (C)2008,JPO&INPIT【課題】カテキン類を添加した油脂を高温加熱した際に生じるカテキン添加油脂の着色抑制方法を提供すること。【解決手段】本発明は、カテキン油性剤中のカテキン類、乳化剤、水分の各配合量を一定の範囲にコントロールすることによって、製剤の調製が簡便で、且つ製剤自体の安定性が高く、更に、油系組成物へ添加した際の溶解性及び抗酸化性に優れ、且つカテキン類を添加した油脂を高温加温した際に生じる着色を抑制することが可能である。【選択図】 なし
