The present invention relates to a sterile-filtered liquid lactase preparation and to a method of sterile filtering a liquid lactase preparation.

A process for the preparation of a liquid or semi-liquid bioactive dairy composition containing 20-90% retained bioactive IgG, for use as an ingredient in a ready-to-eat (RTE) or ready-to-drink (RTD) food product, includes the steps of a) combining a bioactive powder containing a colostrum powder and/or milk powder containing whey proteins, and immunoglobulin G (IgG), wherein the ratio of whey protein: IgG in the bioactive powder is between 1.74:1 and 3.05:1; water and a food grade acid to form a bioactive dairy composition with a pH of 2.5-4.0, and b) heat treating the bioactive dairy composition to between 67-145° C. at ambient pressure.

Disclosed are methods for preparing dairy compositions using a final nanofiltration step. Generally, the methods also include an ultrafiltration step and a reverse osmosis step, and optionally, a diafiltration step.

Disclosed is a method of preparing a fermented milk. The method comprises: step 1, extruding whey protein at low temperature, mixing the extruded whey protein with inulin to prepare extruded whey protein isolate (WPI)-inulin composition; step 2, adding sucrose and the extruded WPI-inulin composition into the raw milk, and uniformly mixing and stirring the sucrose, the extruded WPI-inulin composition, and the raw milk to obtain a material A; step 3, preheating, homogenizing, sterilizing and cooling the material A to obtain a fermentation substrate; step 4, adding a fermentation agent into the fermentation substrate, filling the fermentation substrate in a container, and then performing heat-preserved fermentation, and ending the fermentation to obtain a material B; step 5, cooling the material B, and then refrigerating the material B to obtain fermented milk.

Methods of preventing creaming and age gelation in heat treated dairy based products are provided herein. Heat treated dairy based products are also provided, in which physical instability is prevented.

Disclosed are a yoghurt for regulating intestinal tract, preparation method therefor, and use thereof, where the yogurt is prepared from raw materials comprising the following parts by weight: 90-97 parts of raw milk, Lactobacillus gasseri of (0.7-5)×10.sup.8 CFU/100 g raw milk, Streptococcus thermophilus of (0.1-9)×10.sup.10 CFU/100 g raw milk, Lactobacillus bulgaricus of (0.1-9)×10.sup.10 CFU/100 g raw milk, Lactobacillus acidophilus of (0.5-7)×10.sup.8 CFU/100 g raw milk, Lactobacillus plantarum of (0.5-7)×10.sup.8 CFU/100 g raw milk, Lactobacillus paracasei of (0.1-9)×10.sup.7 CFU/100 g raw milk, and other probiotics, and prebiotics such as inulin. The yogurt may regulate the balance of intestinal flora and prevent constipation and gestational diabetes in overweight and/or obese pregnant women during the gestation period.

Aldehydes of formula (I) (X represents an alkyl or alkenyl group having up to 9 carbon atoms) for use in taste modulation and/or flavor compositions are provided. Specifically, the compounds of the presently disclosed subject matter provide effective and unexpected taste modulating properties. The taste modulation and/or flavor compositions can be incorporated into various consumer end products in particular in combination with high intensity sweeteners. ##STR00001##

The invention relates to a method for producing a milk food made as a substitute for breast milk, in the form of a ready-to-use, long-life liquid. The invention also relates to the facility for implementing said method and to the milk food made as a substitute for breast milk produced by said method.

A composition for enhancing protein digestion is disclosed, which includes at least one acid component, at least one base component and a protein digestion enhancer, wherein the at least one acid component is one selected from a group consisting of an organic acid, a phosphoric acid and a combination thereof, the at least one base component is one selected from a group consisting of an organic base, a phosphate and a combination thereof, the at least one acid component and the at least one base component conjugate with each other to form a buffer formulation, and the protein digestion enhancer is one selected from a group consisting of an ascorbic acid, a salt of the ascorbic acid and a combination thereof.

The present invention relates to a direct vat set starter culture composition comprising lactic acid bacteria comprising a manganese transporter for fermenting a food product and for inhibiting or delaying growth of fungi in said food product, characterized in that the composition comprises up to 600 ppm of manganese.