PROBLEM TO BE SOLVED: To provide a fish oil deodorization method that can carry out the treatment in a short period of time, that is low in cost, that has a high deodorization effect and yet does not impair the active ingredients, and that prevents the deterioration in quality due to oxidation or high-temperature treatment.SOLUTION: The fish oil deodorization method includes: charging a fish oil and a powdered activated charcoal into a bread yeast-containing aqueous solution heated to a temperature at which the activity of bread yeast is retained agitation-treating the same for one to three hours under a reduced pressure while retaining the activity of bread yeast, followed by heating within a range that does not affect the quality of useful ingredients of fish oil, to deactivate the activity of bread yeast, and agitating for one to three hours in said state and then, heat sterilizing the same, followed by separating a fish oil.COPYRIGHT: (C)2015,JPO&INPIT【課題】短時間で処理を行うことができ、コストが低廉で、脱臭効果が高く、しかも有効成分を損なわず、酸化や高温処理による品質の低下を防ぐ魚油の脱臭法を提供すること。【解決手段】パン酵母の活性を保持する温度に加熱したパン酵母含有水溶液に、魚油と粉末活性炭とを投入し、該パン酵母の活性を保持しながら減圧下で1~3時間撹拌処理し、その後、魚油の有用成分の品質に影響を与えない範囲で加熱して、該パン酵母の活性を失活させた状態で1~3時間撹拌し、次いで、加熱殺菌した後、魚油を分離する。【選択図】なし
