Method for preparing powder rich in whey small peptides with molecular weight of 1000 daltons

Abstract

A method for preparing powder rich in whey small peptides with molecular weight of 1000 daltons belongs to the technical field of processing dairy products. The main production process thereof is as follows: enzymatic hydrolysis, embedding and homogenization are firstly carried out on concentrated powder (WPC80 powder) containing 80 percent of whey protein, then the powder is prepared by spray drying, and the product can be used as functional ingredients for infant milk powder. The method adopts trypsin for enzymatic hydrolysis, the degree of hydrolysis achieves 20-21 percent, and then hydrophilic-hydrophobic wall materials of 5-10 percent of beta-cyclodextrin and 5-8 percent of lecithin are adopted, so the method can not only bury the bitterness, but also maintain the biological activities of anti-protein allergy and improve the immunity of the whey small peptides with the molecular weight of 1000 daltons to the maximum extent. The method can be applied to the infant formula milk powder and have good effects of improving the ability of anti-protein allergy of the infant milk powder and improving the immunity.

Description

Technical field [0001] A preparation method of whey small peptide powder rich in molecular weight of 1000 Dalton belongs to the technical field of dairy product processing. Background technique [0002] Human peptides are derived from protein nutrition. There are two main aspects. One is that the protein produces peptides during the digestion of food and is absorbed by the body. The other is that the cells in the body use protein degradation products to directly synthesize amino acids. If due to nutrition, digestion, disease, etc., lack of peptides in the body, the health of the human body will be affected, such as: reduced immunity, indigestion, abnormal metabolism, growth and development disorders, etc. Therefore, scientists suggest that for the body's needs, after meeting the basic nutritional intake of the human body, appropriate supplementation of peptide nutrition is of great benefit to health and disease recovery. Studies have shown that whey protein is much better than c...

AI Technical Summary

Problems solved by technology

Chinese patent CN1409974A reports the anti-fatigue effect of undenatured whey protein concentrate powder, which is a liquid product, which is not conducive to storage and transportation, and is inconvenient to use as an additive

Chinese patent CN1392773A reports a method for preparing a whey protein emulsion, a fortification method and composition for mixing whey protein into dairy products, which includes forming a homogeneous mixture or emulsion containing whey protein and cream, and mixing whey protein containing A homogeneous mixture or emulsion with cream, and mixing the homogeneous mixture or emulsion into dairy products, this patent is only suitable for wet milk powder production

Chinese patent CN1409974 invention patent discloses the application of a kind of undenatured whey protein concentrate powder as the preparation of anti-fatigue health care products, including directly oral drinkable products in the form of capsules without auxiliary materials for anti-fatigue in low-altitude areas and high-altitude areas, or with Liquid mixtures for oral consumption in which powdered undenatured whey protein concentrate powder is mixed directly with drinking water or fruit juice or yoghurt or cold milk or cold soy milk or cold cereal and the like at temperatures below 40°C without agitation for oral consumption , direct use of whey protein, its biological function has not been further developed

[0004] To sum up, in the existing background technology, there is no preparation method such as microencapsulation and spray drying after the whey protein is hydrolyzed to a certain extent, and no product application is involved.