Production method of corn separation protein
A technology for separating protein and corn, applied in the field of new corn protein isolate powder and its extraction process, can solve the problem of not specifying the protein content of corn gluten meal, and achieve the effects of shortening production process, reducing cost and high efficiency
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[0021] Example 1
[0022] Take 150g of corn gluten meal, add 2.5L of water, and stir evenly. Adjust the pH of the feed solution to 8 with NaOH solution, heat the feed solution to 50° C., and stir for 60 minutes in a heat preservation water bath. Centrifuge the material liquid in a centrifuge for 20 minutes, discard the supernatant, collect the lowest layer of insoluble slag, and then continue to add 2.5Kg of water to the insoluble slag, stir evenly, and stir for 60 minutes in a water bath at 50°C. Centrifuge the material liquid for 20 minutes in a centrifuge, discard the supernatant, and collect the lowermost insoluble residue. 98 g of corn protein isolate powder was obtained by spray drying.
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[0023] Example 2
[0024] Take 150g of corn gluten meal, add 1.5L of water, and homogenize with a homogenizer. Adjust the pH of the feed solution to 11 with NaOH solution, heat the feed solution to 80°C, and stir for 40 minutes in a heat preservation water bath. Centrifuge the material liquid in a high-speed centrifuge for 30 minutes, discard the supernatant, and collect the lowest layer of insoluble residue. Then add 1.5Kg of water to the insoluble residue and stir for 40min in a warm water bath at 80°C; centrifuge the material liquid for 30min in a centrifuge, discard the supernatant, and collect the lowermost insoluble residue; vacuum dry and crush to obtain 105g corn protein isolate powder.
Example Embodiment
[0025] Example 3
[0026] Take 600g of corn gluten meal, add 5L of water, and emulsify with an emulsifier. Adjust the pH of the feed solution to 13 with NaOH, heat the feed solution to 100°C, and stir for 20 minutes in a heat preservation water bath. Centrifuge the material liquid in a high-speed centrifuge for 15 minutes, remove the supernatant, and collect the lowest layer of insoluble slag. Then continue to add 1.25Kg of water to the insoluble residue, and stir for 20 minutes in a heat-retaining water bath at 100°C. Centrifuge the material liquid for 15 minutes in a centrifuge, discard the supernatant, and collect the lowermost insoluble residue. Dried into powder to obtain 415 g of corn protein isolate powder.
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