PROBLEM TO BE SOLVED: To provide a folic acid-containing acidic composition in which the decomposition of folic acid is inhibited and/or the stability of folic acid is excellent.SOLUTION: An acidic composition contains folic acid, and a surfactant having a positive charge at a hydrophilic group in acid solution. In the composition, the surfactant is lecithin. The composition contains one or more surfactants selected from phosphatidylcholine, lysophosphatidylcholine, and phosphatidylethanolamine. The composition is a packaged beverage or a packaged jelly beverage.SELECTED DRAWING: None【課題】葉酸の分解が低減されている、及び／又は葉酸の安定性が優れた、葉酸含有酸性組成物の提供。【解決手段】葉酸、及び酸性溶液中において親水基に正電荷を有する界面活性剤を含む、酸性組成物。前記界面活性剤がレシチンである前記組成物。ホスファチジルコリン、リゾホスファチジルコリン、及び、ホスファチジルエタノールアミンから選択される一又は複数の界面活性剤を含む組成物。容器詰め飲料又は容器詰めゼリー飲料である前記組成物。【選択図】なし
