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)