Method for improving power yield and property of concentrated albumen powder
A technology of concentrated protein powder and powder yield, applied in animal protein processing, pharmaceutical formula, food preparation, etc., can solve problems such as unfavorable protein dissolution, affecting food storage stability, and easy oxidation of unsaturated fatty acids
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Embodiment example 1
[0018] Implementation Case 1: Take 136g of commercial concentrated milk protein (Milk protein concentrate, MPC) and rehydrate, adjust the pH of the solution to 7.0, and add 21.4g of ricinoleic acid (Ricinoleic acid, ROA) and ultrapure water in a constant temperature shaking water bath at 50°C for 1 hour Stir evenly until the total mass is 1kg, pre-homogenize for 2 minutes, and then homogenize continuously for 4 times in an ultra-high pressure homogenizer with a homogenization pressure of 28Mpa, and finally spray dry at 105°C / 65°C. In addition, MPC was prepared from a solution without ricinoleic acid as a control group. In order to ensure the repeatability of the process, each type of solution was paralleled once. The indicators of the two milk powders obtained are shown in Table 1, and the microstructure is shown in Table 1. figure 1 . The results show that, according to the process, the powder extraction rate of MPC increased by more than 3 times after adding ricinoleic acid...
Embodiment example 2
[0023] Example 2: Rehydrate 67.8g of commercial concentrated milk protein MPC, adjust the pH of the solution to 7.0, and add 10.7g of methyl laurate, methyl myristate and methyl ricinoleate in a constant temperature shaking water bath at 50°C for 45 minutes Ester and ultrapure water to 500g, stir evenly, pre-homogenize for 2.5 minutes, then homogenize continuously for 4 times in an ultra-high pressure homogenizer, the homogenization pressure is 30Mpa, and finally spray dry at 105°C / 65°C. In addition, MPC was prepared from a solution without fatty acid methyl ester as a control group. In order to ensure the repeatability of the process, each type of solution was paralleled once, and the indicators of several milk powders obtained are shown in Table 2. The results showed that compared with pure MPC, different fatty acid methyl esters increased the powder yield of milk powder by about 2 times; there was no significant difference in particle size; the moisture content in the dry p...
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