Egg yolk separating device for extracting lecithin

Abstract

The invention relates to the technical field of egg yolk and egg white separation, in particular to an egg yolk separating device for extracting lecithin. The egg yolk separating device comprises a rack, a feed hopper and a separation tank, wherein the feed hopper and the separation tank are both fixedly connected with the rack, the feed hopper communicates with the separation tank, an egg white collection box is arranged below the separation tank, the separation tank is obliquely arranged, a V-shaped groove running through the separation tank is formed in a bottom plate of the separation tank in the length direction of the separation tank, and a liquid leakage seam communicating with an inner cavity of the separation tank and the space below the separation tank is formed in the bottom of the V-shaped groove. The egg yolk separating device further comprises a membrane breaking mechanism, wherein the membrane breaking mechanism comprises a fine mesh plate arranged below the lower end of the separation tank, a plurality of upwards-protruding pointed objects are arranged on the fine mesh plate, the mesh diameter of the fine mesh plate is smaller than the width of the liquid leakage seam, and an egg yolk collection box is arranged below the fine mesh plate. According to the scheme, through separation of the separation tank and the membrane breaking mechanism, thorough separation of egg white liquid and egg yolk liquid is achieved, the purity of the egg yolk liquid used for extracting lecithin is improved, and then the extraction rate of the lecithin is increased.

Description

technical field [0001] The invention relates to the technical field of separation, in particular to an egg yolk separation device for lecithin extraction. Background technique [0002] Lecithin is known as the "third nutrient" alongside protein and vitamins. Because lecithin has a certain degree of hydrophilicity and has the function of increasing hemoglobin, it can provide sufficient moisture and oxygen for the skin and make the skin smooth. It is soft and moisturizing, so it is often used as a component in cosmetics. Because the lecithin content in egg yolk is relatively large (about 10%), lecithin is usually extracted from egg yolk as a raw material for cosmetics. [0003] To extract lecithin from egg yolk, acetone extraction is usually used to extract lecithin in egg yolk, mainly using the difference in solubility of lecithin in different solvents to extract lecithin. To extract lecithin from egg yolk, it is necessary to first extract the egg yolk and egg white liquid in...

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Problems solved by technology

[0003] To extract lecithin from egg yolk, acetone extraction is usually used to extract lecithin in egg yolk, mainly using the difference in solubility of lecithin in different solvents to extract lecithin. To extract lecithin from egg yolk, it is necessary to first extract the egg yolk and egg white liquid in the egg The pure egg yolk liquid is obtained by separation. The egg yolk includes the yolk and the yolk membrane covering the yolk. The lecithin in the egg yolk mainly exists in the yolk, and the main component of the yolk membrane is fibrous protein. In the structure of the egg, the yolk membrane is also connected with The vitelline frenulum separated from the vitelline membrane is not easy to separate from the egg yolk due to the viscosity of the egg white, especially the egg white close to the vitelline membrane is more difficult to separate from the vitelline membrane. Contains egg white liquid and yolk frenulum partly adhered to the vitelline membrane. When extracting lecithin from the egg yolk mixed with egg white liquid and yolk frenulum, it is impossible to reasonably determine the amount of solution and extraction liquid required per unit mass of egg yolk. It may cause incomplete dissolution and extraction of egg yolk, reduce the extraction rate, or cause excessive use of lysate and extract, resulting in waste of resources and excessive residues to reduce the purity of lecithin

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