High activity soy bean edible fiber powder preparation process using instant flash steaming drying method
A soybean dietary fiber, instantaneous flash technology, applied in food preparation, food science, application and other directions, can solve the problems of difficult to achieve industrialization, high processing cost, protein denaturation and other problems, achieve low energy consumption, high drying efficiency, reduce heat denaturation effect
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[0014] Example 1
[0015] A certain amount of wet bean dregs is sent to the conditioning tank through the conveying equipment, add 10% softened water, adjust its pH to 5.5, heat to 70°C for 30 minutes, and then neutralize with lye to pH 7.0± 0.5. At the same time, according to the color of the wet bean dregs, 1.0% hydrogen peroxide was added for decolorization. After conditioning, the soybean dregs slurry enters the filter press to remove part of the moisture, and then enters the flash dryer with hot air for drying treatment. The inlet air temperature is 220°C and the outlet air temperature is 85°C. The dried material enters an ultrafine pulverizer for pulverization and classification to obtain soybean dietary fiber powder with a particle size of 150 mesh. Its insoluble dietary fiber is 26.5%, protein is 22.8%, and moisture is 8.9%.
Example Embodiment
[0016] Example 2
[0017] A certain amount of wet bean dregs is sent to the conditioning tank through the conveying equipment, added with 12% softened water, adjusted its pH to 5.5, heated to 70°C for 40 minutes, and then neutralized with lye to pH 7.0± 0.5. At the same time, according to the color of the wet bean dregs, 1.2% hydrogen peroxide was added for decolorization. After conditioning, the soybean dregs slurry enters the filter press to remove part of the moisture, and then enters the flash dryer with hot air for drying treatment. The inlet air temperature is 220°C and the outlet air temperature is 85°C. The dried material enters an ultrafine pulverizer for pulverization and classification to obtain soybean dietary fiber powder with a particle size of 150 mesh. Its insoluble dietary fiber is 26.8%, protein is 22.0%, and moisture is 9.1%.
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