Method for reducing crude protein (CP) of second-extracted soybean residues in isolated protein
A technology for separating protein and crude protein, applied in the field of food processing, can solve the problems of affecting the removal rate of bean dregs CP, affecting the secondary dissolution effect, and uneven pH value, so as to reduce production costs, reduce CP content, and improve product yield. Effect
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Embodiment 1
[0035] The method for reducing the CP of the isolated protein two slag described in the present embodiment comprises the steps:
[0036] (1) Add the prepared process water at 40-43°C to the extraction tank, add liquid caustic soda, the pH of the alkaline water is controlled between 11±0.5, and add edible low-temperature soybean meal, the ratio of soybean meal to water is 1:8.21, The pH of the feed liquid is controlled between 7.0-7.5, and the dissolving time is 30 minutes (the amount of alkali added is 13.5±0.5kg). The first-extraction separator, after being centrifuged at a high speed by the centrifuge, separates the feed liquid into solid and liquid, and the solid is pushed out by the inner screw of the separator to become a first-extraction bean dregs, and the liquid will flow out from the overflow port, which is called a first-extraction soybean milk;
[0037] (2) According to the mass ratio of 1:5, dilute and dissolve the first-extracted bean dregs obtained in step (1) wi...
Embodiment 2
[0039] The method for reducing the CP of the isolated protein two slag described in the present embodiment comprises the steps:
[0040] (1) Add the prepared 40-43°C process water into the extraction tank, add liquid caustic soda, control the pH of the alkaline water between 11±0.5, add edible low-temperature soybean meal, the ratio of soybean meal to water is 1:8, The pH of the feed liquid is controlled between 7.0-7.5, and the dissolving time is 30 minutes (the amount of alkali added is 13.5±0.5kg). The first-extraction separator, after being centrifuged at a high speed by the centrifuge, separates the feed liquid into solid and liquid, and the solid is pushed out by the inner screw of the separator to become a first-extraction bean dregs, and the liquid will flow out from the overflow port, which is called a first-extraction soybean milk;
[0041] (2) According to the mass ratio of 1:2, dilute and dissolve the first-extracted bean dregs obtained in step (1) with water, and ...
Embodiment 3
[0043] The method for reducing the CP of the isolated protein two slag described in the present embodiment comprises the steps:
[0044] (1) Add the prepared 40-43°C process water into the extraction tank, add liquid caustic soda, control the pH of the alkaline water between 11±0.5, add edible low-temperature soybean meal, the ratio of soybean meal to water is 1:9, The pH of the feed liquid is controlled between 7.0-7.5, and the dissolving time is 30 minutes (the amount of alkali added is 13.5±0.5kg). The first-extraction separator, after being centrifuged at a high speed by the centrifuge, separates the feed liquid into solid and liquid, and the solid is pushed out by the inner screw of the separator to become a first-extraction bean dregs, and the liquid will flow out from the overflow port, which is called a first-extraction soybean milk;
[0045] (2) According to the mass ratio of 1:10, dilute and dissolve the bean dregs obtained in step (1) with water to dissolve the bean...
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Abstract
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