| 摘要 |
A process for preparation of 50 % solution of phosphatidylcholine (L--lecithin) includes extraction of neutral lipids and free fatty acids with acetone, drying phosphatides, extraction of phosphatidylcholine from dried phosphatides by alcohols (ethyl and isopropyl) with next filtration, concentration of the alcoholic extract, cooling, sediment detachment, concentration of the extract up to 50 % content of phosphatidylcholine. Phosphatidylcholine from dried phosphatides is extracted by a mixture of ethyl and isopropyl alcohols. |
