Lecithin production process

Lecithin production process

Lecithin production generally uses the following processes:

1. Ethanol extraction: The principle is that lecithin is soluble in ethanol, and other phospholipids: brain phospholipids and inositol phospholipids are insoluble in ethanol.

2. Layered column analysis method: The principle is that the adsorbent has different adsorption capacity for brain phospholipids, inositol phospholipids and lecithin.

3. Co2 supercritical extraction: The principle is the abnormal balance behavior and transfer performance of supercritical point Co2 and lecithin. Different components are separated under changing temperature and pressure.

4. Membrane separation method: The principle is to use different lecithin, brain phospholipid, and inositol phospholipid to form different molecular masses in different solvents for separation, such as using a phospholipid solution dissolved in a mixed solution of ethane-isopropanol through polypropylene Through the membrane, the lecithin content can be increased from 25% to 51%, and the solution flowing through the membrane can be recovered and recovered, which can greatly improve the purity of lecithin. However, this method is not very mature and cannot distinguish components with similar molecular weights. Currently limited to laboratories.