Preparation method of high-immune plasma protein powder

Abstract

The invention relates to a preparation method of high-immune plasma protein powder. According to the method, fresh plasma liquid of healthy slaughtered livestock and poultry as a raw material, a process method including the steps of inorganic membrane filtering, organic membrane concentrating, reducing sugar adding, high-pressure homogenizing and spray drying is adopted, the prepared high-immune plasma protein powder basically has no blood smell, the protein content of the high-immune plasma protein powder reaches 75% or above, and the immune globulin G content of the high-immune plasma protein powder is increased by 40% or above compared with common plasma protein powder; reducing sugar and plasma immune globulin particles are prepared through reducing sugar adding, homogenizing and centrifugal atomization treating, damage of the high temperature to immune globulin in the spray drying process is reduced through the affinity effect of rich hydrophilic hydroxyl groups in reducing sugar to water, therefore, the activity of the immune globulin is guaranteed, and preparation of the high-immune plasma protein powder is achieved.

Description

technical field [0001] The invention belongs to the technical field of livestock and poultry blood processing and utilization, and in particular relates to a preparation method of high-free plasma protein powder. Background technique [0002] my country is the largest pig production country in the world. Every year, tens of millions of pigs are killed or eliminated due to various reasons such as diseases. Among them, the number of piglets under 30kg culled and killed accounted for more than half of the culled mortality rate in the entire breeding period. The reason for this phenomenon is The main reason is that the body resistance of piglets is weak and the incidence rate is high, which leads to a decrease in the survival rate of piglets, a reduction in feed remuneration, slow growth, and stagnant growth and development (stiff pigs), which seriously threatens the healthy development of the pig industry. Tens of billions of dollars have been invested in feeding, management and ...

AI Technical Summary

Problems solved by technology

However, the high-temperature spray-drying process in the existing plasma protein powder processing technology is difficult to be replaced because it can realize the rapid disguised evaporation of water in the plasma solution and the effect of high-temperature killing of various pathogenic microorganisms in the plasma. The plasma solids content is low, about 6-8%. It is directly spray-dried without concentration, and the maximum inlet temperature can even reach 240°C. During the drying process, the immune-active globulin G in plasma proteins is seriously damaged, reducing the product biological value

Although high-activity plasma protein powder can be prepared by freeze-drying, the efficiency is low, the energy consumption is large, and the pathogenic microorganisms in the blood are difficult to kill. Therefore, it is important to study the IgG stabilization method in effective plasma protein and develop high-free plasma protein powder. Value

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