ELUTING METHOD OF OIL-SOLUBLE ACTIVE INGREDIENT, METHODS AND APPARATUSES FOR PRODUCING OILY COMPOSITION AND POWDERED FAT COMPOSITION, AND FOODS USING THESE COMPOSITIONS

摘要

PROBLEM TO BE SOLVED: To provide a method of effectively eluting oil-soluble active ingredients included in fruit peel or leaves of citrus without degradation into edible oil, and to provide an eluted oily composition or a powdered fat composition thereof, to provide methods and apparatuses for producing them, and to provide foods using these compositions.SOLUTION: There is provided an eluting method of oil-soluble active ingredients comprising: mixing fruit peel or leaves of citrus with an edible oil; performing a heat treatment with superheated steam in the absence of oxygen; and eluting the oil-soluble active ingredients into the edible oil. A method of producing oily compositions which produces the oily compositions by separating a liquid part after heat treatment. Further, there is provided a production apparatus of the oily compositions which produces the oily compositions containing the active ingredients in fruit peel or leaves of citrus, consisting of: a saturated steam generating means, a superheated steam generating means; a temperature control means of the superheated steam; an elution treatment container for mixing and supplying fruit peel or leaves of citrus with the edible oil to elute the active ingredients thereof into the edible oil; and a means of separating a liquid part from an elution treatment product after the treatment.