Method for extracting peanut protein from high-temperature peanut meals
A peanut meal and protein technology, applied in the field of vegetable protein processing, can solve the problems of poor product emulsifying performance and foaming performance, low peanut protein extraction rate, etc., and achieves improved utilization value and added value, short processing cycle, and production method. simple effect
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Embodiment 1
[0027] Crush and sieve the high-temperature peanut meal, put 1 kg of 80-mesh peanut meal into a stainless steel enzyme reactor, add distilled water according to the ratio of material to water 1:3, and add sulfuric acid to adjust the concentration to 0.3% (W / V). Stir and soak for 2h. Wash off the remaining acid on the surface of the soaked peanut meal with clean water, drain it and place it in a steam explosion device, and treat it at a pressure of 1.6 MPa for 5 minutes. For the high-temperature peanut meal after blasting, add distilled water according to the material-to-water ratio of 1:12, adjust the pH to 9.5 with lye, dissolve in alkali for 2 hours at a temperature of 60°C, centrifuge at 8000r / min for 20 minutes, and use alkali solution for the second time under the same conditions. Dissolve, centrifuge, combine the supernatant, acid precipitation under the condition of pH 4.5, centrifuge 20min under the condition of 8000r / min, take the sediment, wash 3 times with pure wate...
Embodiment 2
[0029] Crush and sieve the high-temperature peanut meal, put 1 kg of 40-mesh peanut meal into a stainless steel enzyme reactor, add distilled water according to the ratio of material to water 1:5, add sulfuric acid to adjust the concentration to 0.6% (W / V), at 80°C Stir and soak for 1h. Wash off the remaining acid on the surface of the soaked peanut meal with clean water, drain it and place it in a steam explosion device, and treat it at a pressure of 2.0 MPa for 3 minutes. For the high-temperature peanut meal after blasting, add distilled water according to the material-to-water ratio of 1:10, adjust the pH to 8.5 with lye, dissolve in alkali for 1.5 hours at a temperature of 70°C, centrifuge at 8000r / min for 20 minutes, and repeat under the same conditions Alkali dissolution, centrifugation, combined supernatant, acid precipitation under the condition of pH 4.5, centrifugation under the condition of 8000r / min for 20min, take the precipitate, wash 3 times with pure water, and...
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