Abstract: In a preparation step, raw material milk is prepared. In a lactose degradation step, at least part of lactose included in the prepared raw material milk is degraded using a lactose-degrading enzyme. The lactose concentration in the raw material milk in which lactose is degraded is not more than 2.5% by mass with respect to a total amount of the raw material milk. A lactic acid bacterium is added to the raw material milk in which at least part of lactose is degraded, and the raw material milk to which the lactic acid bacterium is added is fermented.

Abstract: In a preparation step, raw material milk is prepared. In a lactose degradation step, at least part of lactose included in the prepared raw material milk is degraded using a lactose-degrading enzyme. The lactose concentration in the raw material milk in which lactose is degraded is not more than 2.5% by mass with respect to a total amount of the raw material milk. A lactic acid bacterium is added to the raw material milk in which at least part of lactose is degraded, and the raw material milk to which the lactic acid bacterium is added is fermented.

Abstract: The present invention addresses the problem of solving problems of the conventional techniques and producing, by an economically advantageous means, fermented milk having hardness to such an extent that the texture of the fermented milk can be kept during distribution. The present invention relates to a method for producing fermented milk, comprising homogenizing a raw material mix under a high pressure to reduce the average particle diameter of a fat and then fermenting the homogenized product. More specifically, the present invention relates to: a method for producing fermented milk using a material that is sterilized at an ultra-high temperature, said method comprising homogenizing a fat in a raw material mix, which contains a material sterilized at an ultra-high temperature, under a high pressure and then fermenting the resultant product; and fermented milk produced by the method.

Abstract: In a preparation step, raw material milk is prepared. In a lactose degradation step, at least part of lactose included in the prepared raw material milk is degraded using a lactose-degrading enzyme. The lactose concentration in the raw material milk in which lactose is degraded is not more than 2.5% by mass with respect to a total amount of the raw material milk. A lactic acid bacterium is added to the raw material milk in which at least part of lactose is degraded, and the raw material milk to which the lactic acid bacterium is added is fermented.

Abstract: In a preparation step, raw material milk is prepared. In a lactose degradation step, lactose included in the prepared raw material milk is degraded using a lactose degrading enzyme until a lactose degradation rate becomes not less than 75%. In a fermentation step, a lactic acid bacterium is added to the raw material milk in which lactose is degraded such that the lactose degradation rate is not less than 75%, and the raw material milk to which the lactic acid bacterium is added is fermented. The lactic degradation rate in the fermented milk produced by this production method of fermented milk is 100%.

Abstract: Provided is a production method for a concentrated product, using a freeze-concentration method having a high yield rate (low loss rate) that is practically applicable, as required in large-scale (commercial scale) production. The production method for concentrated product using the freeze-concentration method includes: an ice crystal generation step in which a fluid to be treated is cooled, ice crystals of the fluid are generated in the fluid, and a mixed fluid to be treated is formed wherein the mixed fluid to be treated is comprised of the ice crystals and a concentrated fluid produced from the fluid to be treated by generating the ice crystals in the fluid thereby the fluid is concentrated; and an ice crystal separation step in which the mixed fluid is separated into the concentrated fluid to be treated and the ice crystals, and the separated concentrated fluid be treated is retrieved.

Abstract: A method using a membrane-concentration method and a freeze-concentration method includes: a membrane-concentration step in which a fluid to be treated is cooled and a membrane-concentrated fluid is prepared by membrane-concentrating the solid content concentration thereof by more than 1.5 times; an ice crystal generation step in which said membrane-concentrated fluid is cooled, ice crystals of said membrane-concentrated fluid are generated in said membrane-concentrated fluid, and a mixed fluid to be treated is formed wherein said mixed fluid to be treated is comprised of said ice crystals and a concentrated fluid to be treated produced from said membrane-concentrated fluid by generating said ice crystals in said membrane-concentrated fluid thereby said membrane-concentrated fluid is concentrated; and an ice crystal separation step in which said mixed fluid is separated into said concentrated fluid to be treated and said ice crystals, and said separated concentrated fluid to be treated is retrieved.

Abstract: A method using a membrane-concentration method and a freeze-concentration method includes: a membrane-concentration step in which a fluid to be treated is cooled and a membrane-concentrated fluid is prepared by membrane-concentrating the solid content concentration thereof by more than 1.5 times; an ice crystal generation step in which said membrane-concentrated fluid is cooled, ice crystals of said membrane-concentrated fluid are generated in said membrane-concentrated fluid, and a mixed fluid to be treated is formed wherein said mixed fluid to be treated is comprised of said ice crystals and a concentrated fluid to be treated produced from said membrane-concentrated fluid by generating said ice crystals in said membrane-concentrated fluid thereby said membrane-concentrated fluid is concentrated; and an ice crystal separation step in which said mixed fluid is separated into said concentrated fluid to be treated and said ice crystals, and said separated concentrated fluid to be treated is retrieved.