Method and device for realizing soybean protein separation by two mediums-mixed leaching

Abstract

The invention discloses a method and a device for realizing the soybean protein separation by two mediums-mixed leaching. The method comprises the following steps: feeding to the upper chamber of a leacher, spraying and immersing a protein flake by using a n-hexane solvent, extracting grease to obtain a protein flake; then sending the obtained protein flake to a lower chamber of the leacher, spraying and immersing at 48-52 DEG C by using an alcohol liquid, and extracting oligosaccharide ingredients from soybean meal; draining and then dehydrating; and separating to obtain soybean protein finally, wherein the volume fraction concentration of the n-hexane solvent is larger or equal to 60%, and the volume fraction concentration of alcohol is larger or equal to 65%. The device for realizing the method is a mixed type towline leacher which is characterized by adding a draining segment on the upper layer of the existing towline leacher body, arranging an independent circulating system and a matched precipitation separation system device. According to the invention, degreasing and desugaring can be realized at a time, thus the extraction effect is raised, and the protein yield is increased.

Description

technical field [0001] The invention relates to a refining and extraction method and equipment; in particular to a method for realizing soybean protein separation by mixing and leaching two media and a mixed towline extractor for realizing the method. Background technique [0002] The traditional (soybean) protein production process uses desolventized thick (after) white bean flakes as the production raw material. After the white bean flakes undergo the desolventization process, a certain amount of meal powder will be produced. If such raw materials directly enter the alcohol extraction process, they will be Affect the penetration and fail to meet the requirements of the alcohol extraction process, so it must be screened again before the alcohol extraction can be carried out, which will greatly reduce the utilization rate of raw materials, relatively reduce the protein yield, and increase fixed assets inputs and energy consumption. [0003] In the process of oil extraction,...

AI Technical Summary

Problems solved by technology

[0002] The traditional (soybean) protein production process uses desolventized thick (after) white bean flakes as the production raw material. After the white bean flakes undergo the desolventization process, a certain amount of meal powder will be produced. If such raw materials directly enter the alcohol extraction process, they will be Affect the penetration and fail to meet the requirements of the alcohol extraction process, so it must be screened again before the alcohol extraction can be carried out, which will greatly reduce the utilization rate of raw materials, relatively reduce the protein yield, and increase fixed assets Inputs and Energy Consumption

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