Table 2c Composition (%) of crude and pure lecithin
Component	Crude lecithin (oily)1	Pure lecithin (powder) (deoiled)1	Crude lecithin (oily)2	Lecithin, crude3
Total phospholipids	65	98
Choline phospholipids	15	23	19�21	35
Ethanolamine phospholipids	14	21	8�20	29.7
Inositol phospholipids	13	19	20�21	18.5
Other phospholipids	10	15	5�11
Phosphatidic acid	4	6
Glycolipids	9	14
Oil and other substances	35	2	33�35
Carbohydrates, sterols		5
Sterols			2�5
Carbohydrates, free			5
Phosphatidylserine PS				8.4
Sphingomyelin				2.3
Lysophosphatidylcholine LPC				1.6
Unknown phospholipids UK				4.5
Total	100	100		100
1Hertrampf (1991); 2Scholfield, (1981); 3Teshima, Kanazawa and Kakuta (1986)