PROBLEM TO BE SOLVED: To provide a method for manufacturing a fermented dairy product from aseptic whole fat soybean powder, suitable for edible use having an extremely high nutrition value with highly improved gustatory evaluation such as taste and smoothness of texture； and a fermented dairy product manufactured by the method.SOLUTION: The method includes the steps of: manufacturing aseptic whole fat soybean powder with a grain size of 100 to 1000 mesh by pulverizing aseptic dehulled soybeans having a bacterial count of 300 pieces/g or less with use of a method for separating soybeans into seed lobes, embryos, and hulls； heat sterilizing powdered soybean juice produced by adding water to the aseptic whole fat soybean powder； producing homogenized powdered soybean juice by homogenizing the powdered soybean juice； and producing fermented milk by adding lactic acid bacterium to the homogenized soybean juice for fermentation.【課題】栄養価が非常に高く、且つ味わいや食感の滑らかさ等の味覚上の評価においても大きく改善されて食用に適した、無菌全脂大豆粉を原料とする醗酵乳製品の製造方法及びそれにより製造された醗酵乳製品を提供する。【解決手段】丸大豆を子葉と胚芽と皮とに分離する方法を用いて細菌数が３００個／ｇ以下とした無菌脱皮大豆を粉砕して粒度１００～１０００メッシュの無菌全脂大豆粉を製造する工程と、前記無菌全脂大豆粉に水を加えて粉豆汁とし、前記粉豆汁を加熱殺菌する工程と、前記粉豆汁を均質化し、ホモゲナイズド粉豆汁を得る工程と、乳酸菌を前記ホモゲナイズド粉豆汁に加えて醗酵させて醗酵乳とする工程と、を含むようにした。【選択図】図１
