Composition data of different types of phospholipids(lecithins)

The lecithins (E 322)is identified as mixtures or fractions of phosphatides obtained by physicalprocedures from animal or vegetable foodstuffs. They also include the corresponding hydrolysed products like non-hydrolysed and hydrolysed.

The content (percentage) of the principal components of lecithins depends on different raw material sources. Soy Lecithin liquid (oil) obtained from soya beans is a mixture containing about 60% phospholipids and 40% triglycerides, sterols and carbohydrates in various proportions.

The deoiled soy lecithin (oil free lecithin) composition is 21% phosphatidylcholine, 22% phosphatidylethanolamine, 19% phosphatidylinositol, 10% phosphatidic acid, 1% phosphatidylserine and 12% glycolipids.

Summarised data on phospholipid composition of soya lecithin (liquid, de-oiled, hydrolysed), sunflower lecithin (liquid, deoiled) and rape seed lecithin from the European Lecithin Manufacturers Association (ELMA) (Document provided to EFSA n.18)

Composition data of different types of phospholipids(lecithins)

*: In this product phospholipids are partially hydrolysed. Reported content of liso phosphatidyl choline is 3.85-4.56%, lyso phosphatidyl inositol is 0.88-1.36%, lyso phosphatidyl ethanolamine is 1.67-2.31% and lyso phosphatidic acid is 1.19-1.34%

Fatty Acid composition in Soy Lecithin deoiled.

reported that the fatty acid composition of oil-free soya lecithins was:
-18.4% palmitic acid; CH3(CH2)14COOH
-4.0% stearic acid: CH3(CH2)16COOH,
-10.7% oleic acid: CH3(CH2)7CH=CH(CH2)7COOH),
-58.0% linoleic acid: (CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH),
-6.8% linolenic acid: (CH3(CH2CH=CH)3(CH2)7CO2H),
– 2.1% others.


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