PROBLEM TO BE SOLVED: To provide a method for concentrating cow milk, and a method for preparing dairy products.SOLUTION: A method for concentrating cow milk includes collecting cow milk and passing through reverse osmosis membrane concentration at 0-7°C so as to obtain concentrated cow milk. The mass content of lipid in the concentrated cow milk is 0.2-10%, and the concentration temperature is 4-6°C, or the mass content of lipid is 4-9% and the mass content of a soluble solid is 12-32%. The mass content of protein in the concentrated cow milk is 3.3%. A method for preparing dairy products includes obtaining the dairy products by passing the concentrated cow milk which is obtained by adopting the concentration method, through a formulation step, a sterilization step, and a packaging step. The cow milk has only an almost physical change in a processing step through low-temperature concentration at 0-7°C, and the natural state of the cow milk is retained to maximum.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】牛乳の濃縮方法及び乳製品の調製方法を提供する。【解決手段】本発明の牛乳の濃縮方法は、牛乳を採取し、0~7℃下で逆浸透膜濃縮を経て、濃縮牛乳を得る。そのうち、濃縮牛乳の脂肪の質量含有量が0.2~10%であり、濃縮温度が4~6℃であり、又は脂肪の質量含有量が4~9%であり、可溶性固形物の質量含有量が12~32%である。濃縮牛乳のたんぱく質の質量含有量は、3.3%である。また、乳製品の調製方法は、該濃縮方法を採用して得られる濃縮牛乳が調合工程、殺菌工程、包装工程を経て乳製品を獲得する。本発明は、0~7℃下の低温濃縮により、牛乳を加工過程で略物理変化のみを有させ、牛乳の自然な状態を最大限に保持する。【選択図】図1
