PROBLEM TO BE SOLVED: To provide a method for stably and efficiently producing a milk-fermented product having higher viscosity than a conventional one without addition of any specific additive.SOLUTION: The method for producing the milk-fermented product includes encapsulating raw material consisting mainly of sterilized milk or a milk product, and Lactococcus cremoris in a hermetically sealed container made of material having an oxygen permeability of 50 fmol/m2× s × Pa or less, and adjusting initial dissolved oxygen to not more than 10 ppm and then fermenting the mixture.COPYRIGHT: (C)2010,JPO&INPIT【課題】特別な添加物を加えることなく、従来よりも粘性の高い乳発酵物を安定的かつ効率的に製造する、乳発酵物の製造方法を提供すること。【解決手段】本発明の乳発酵物の製造方法は、酸素透過度が50fmol/m2・s・Pa以下である材質から構成される密封容器内に、殺菌した乳又は乳製品を主成分とした原料とクレモリス菌とを封入し、初期溶存酸素を10ppm以下に調整して後発酵させる。【選択図】図2
