PROBLEM TO BE SOLVED: To provide powder type ω3 highly unsaturated fatty acid ethyl ester-containing compositions in which the progress of oxidation during commercialization processes and product preservation period and the generation of a fishy unpleasant stench peculiar to fish oil associated with them, as well as a fishy stench peculiar to fish oil when ingested are suppressed within an acceptable range in sensory evaluation and to provide foods containing the compositions.SOLUTION: Provided is a composition in which the amount of dissolved oxygen is 1 mg/L or less, the peroxide value is 3 or less, the acid value is 1 or less, and the anisidine value is 5 or less, as well as highly unsaturated fatty acids (in particular the ethyl ester of ω3 highly unsaturated fatty acids) from which peroxide has been removed by adsorbent treatment are comprised. Preferably, a composition comprising highly unsaturated fatty acids is prepared by spray-drying method.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】製品化の過程および製品の保存期間中における酸化の進行とそれに伴う魚油に特有の生臭い不快な異臭の発現、並びに、このものを摂食した時に魚油に特有の生臭い異臭が官能評価的に許容出る範囲内に抑制された粉末状のω3系高度不飽和脂肪酸エチルエステル含有組成物と該組成物を含有する食品を提供する。【解決手段】溶存酸素量が1mg/L以下であって、過酸化物価が3以下かつ酸価が1以下かつアニシジン価が5以下であって、かつ、吸着剤処理によって過酸化物を除去した高度不飽和脂肪酸(特に、ω3系高度不飽和脂肪酸のエチルエステル)を含む組成物が提供される。好ましくは、高度不飽和脂肪酸を含む組成物は、噴霧乾燥法によって調製される。【選択図】なし
