Milk powder preparation with maintenance overhaul of nutrition

Abstract

The invention discloses a milk powder production method for keeping nutrition. The method comprises the steps as follows: the inspected raw milk is purified to separate the impurities; the purified milk is heated to 50 DEG C; the fat in the separated purified milk is degreased so as to obtain skimmed milk; the skimmed milk is heated to 50 DEG C so as to carry out the micro-filtration disposal for sterilization; the micro-filtration diameter is 0.1-22mm; the entrapped solution obtained by the micro-filtration disposal or the mixed solution obtained by mixing the entrapped solution and the cream obtained by the degreasing disposal is heated to 80-85 DEG C and the temperature is kept for 5-10min for sterilization; the sterilized entrapped solution or mixed solution is mixed with the filtrated solution obtained by the micro-filtration disposal so as to obtain the mixed latex; the mixed latex is concentrated under the vacuum so as to remove the goaty flavour in the mixed latex; the mixed latex with the goaty flavour removed is homogenized under the high pressure and frozen dryly so as to obtain the dry milk powder with the water content of 1-4%, thus obtaining the finished milk powder or degreased milk. The method protects the nutrition in the raw milk to the utmost extent and obtains the milk powder with full nutrition.

Description

technical field [0001] The invention relates to a production process of milk powder, in particular to a milk powder production method capable of preserving the nutrition of milk powder. Background technique [0002] The conventional milk powder processing method is to concentrate goat milk or cow milk, or their colostrum through multi-effect vacuum concentration equipment to remove part of the water in the milk. The concentration temperature is generally between 45-85°C. After concentration, use The concentration of milk reaches about 40-48%. It is made by high-temperature sterilization at 137-142°C, and then spray-dried with hot air at 120-170°C. After multiple high-temperature processing, the protein and vitamins in the finished milk powder are partially destroyed, and the protein The activity of the milk is lost, the nutritional content is greatly reduced, and the "disulfide bond" will be broken if the heating temperature is too high, so that the dairy product has a cooki...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a milk powder production method that preserves nutrition. The method utilizes membrane separation treatment instead of traditional high-temperature sterilization to sterilize the raw milk in production, and overcomes the high-temperature sterilization in the traditional milk powder preparation method that destroys the nutrients and nutrients in the milk powder. The taste and appearance of finished milk powder are not good

Images