Sour milk powder producing process

Abstract

The sour milk powder producing process includes the first adding cane sugar into milk material, instantaneous high temperature sterilizing and concentrating to obtain concentrated milk; the subsequent inoculating thermophilic streptococcus and Lactobacillus bulgaricus to high temperature sterilized milk and heat insulating culture to obtain activated spawn; adding leucine, vitamin B12, glutamic acid and the activated spawn to the concentrated milk and homogenizing; and final spray drying similar to producing common milk powder. The present invention has leucine, vitamin B12 and glutamic acid as the high temperature protector to solve the technological problem of well preserving thermophilic streptococcus and Lactobacillus bulgaricus in the high temperature spray drying.

Description

technical field

[0001] The invention relates to a production process of milk powder, in particular to a production process of yoghurt powder. Background technique

[0002] The health function of lactic acid bacteria was discovered by Russian scientist Mechnikov in the early 20th century. Today, lactic acid bacteria have become an important probiotic group, and their health benefits are recognized. Yogurt is considered to be one of the best nutritional and health foods in the 21st century because it contains a large amount of active lactic acid bacteria. However, even under refrigerated conditions, yogurt has a short shelf life. For this reason, people begin to carry out the development and research work of lactic acid bacteria milk powder.

[0003] The development and research of lactic acid bacteria milk powder has been discussed at home and abroad in recent years, and the focus is mainly on the survival of lactic acid bacteria in milk powder. Because lactic acid bacter...