Method for preparing powder rich in whey small peptides with molecular weight of 1000 daltons
A whey peptide and molecular weight technology, which is applied in animal protein processing and other fields, can solve the problems of inconvenient application, lack of further development of biological functions, no whey protein microencapsulation, spray drying preparation methods, etc. , to improve the effect of anti-protein allergy
Inactive Publication Date: 2009-09-02
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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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
Method used
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Embodiment 1
[0015] Example 1: Preparation of whey small peptide powder with a molecular weight of 1000 Daltons
[0016] Dissolve 30kg of whey in 50L of water, stir, preheat to 60°C, add sodium hydroxide or hydrochloric acid solution to adjust the pH to 7.0, then add 1.5kg of trypsin required for hydrolysis, and enzymolyze in a constant temperature water bath at 60°C for 5 hours , using the enzymatic hydrolysis solution as the core material, adding 5-10% β-cyclodextrin and 5-8% lecithin as the wall material combined with affinity and sparseness to embed the bitter taste, the ratio is 70:15:15, embedding high-speed dispersion The rotating speed is 20000r / min, disperse for 10min; spray drying, the drying conditions are air inlet temperature 190°C, air outlet temperature 95°C, material flow rate 1.35L / h, cooling, packaging, storage.
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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] The invention discloses a method for preparing whey small peptide rich in molecular weight of 1000 Daltons, which belongs to the technical field of dairy product processing. Background technique [0002] The human body's peptides are derived from protein nutrition. There are two main aspects. One is that the protein produces peptides during the digestion process of food and is absorbed by the body. The other is that the cells in the body directly synthesize amino acids from protein degradation products. If due to nutrition, digestion, disease and other reasons, the lack of polypeptide substances in the body will affect the health of the human body, such as: decreased immunity, indigestion, abnormal metabolism, growth and development disorders, etc. Therefore, scientists suggest that according to the needs of the body, after meeting the basic nutritional intake of the human body, appropriate supplementation of polypeptide nutrition is of great benefit t...
Claims
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Inventor 尤玉如肖功年刘士旺吴元锋袁海娜魏培莲
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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