Lecithin
8002-43-5 · E 322 · LECITHIN · Lecithins · Phosphatides · Phospholipids · E322 · 322(i) · Lecithin · Lecithins · Lecithine · Lecithinen · Lecithiner · Lecithins · Lecitinai · Lecitinas · Lecitine · Lecitinek · Lecitiner · Lecitini · Lecitiny · Lecytyny · Lesitiinit · Letsitiinid · Lécithines · Λεκιθίνες · ЛецитиниE number E322INS 322(i)CAS 8002-43-5
Listed as an emulsifier by Canada, Codex and the US.
Listed as emulsifiers (CA, US, Codex) · antioxidants (US, Codex) · lubricants and release agents (CA, US) · preservatives (CA) · thickeners (CA) · stabilisers (CA) · humectants (US) · anticaking agents (US) · flour treatment agents (Codex) · nutrient supplements (US) · texturisers (US) · surface-active agents (US)
- Canada: Emulsifying agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- Canada: Emulsifying, stabilizing or thickening agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- United States: Emulsifier or emulsifier salt — FDA, Substances Added to Food: LECITHIN
- Codex Alimentarius: Emulsifier — CXS 192-1995 Table One, INS 322(i)
- United States: Antioxidant — FDA, Substances Added to Food: LECITHIN
- Codex Alimentarius: Antioxidant — CXS 192-1995 Table One, INS 322(i)
- Canada: Release agent — Health Canada, List of Permitted Food Additives with Other Purposes of Use (List 8)
- United States: Lubricant or release agent — FDA, Substances Added to Food: LECITHIN
- Canada: Preservative — Health Canada, List of Permitted Preservatives (List 11)
- Canada: Emulsifying, stabilizing or thickening agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- Canada: Thickening agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- Canada: Emulsifying, stabilizing or thickening agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- Canada: Stabilizing agent — Health Canada, List of Permitted Emulsifying, Gelling, Stabilizing or Thickening Agents (List 4)
- United States: Humectant — FDA, Substances Added to Food: LECITHIN
- United States: Anticaking agent or free-flow agent — FDA, Substances Added to Food: LECITHIN
- Codex Alimentarius: Flour treatment agent — CXS 192-1995 Table One, INS 322(i)
- United States: Nutrient supplement — FDA, Substances Added to Food: LECITHIN
- United States: Texturizer — FDA, Substances Added to Food: LECITHIN
- United States: Surface-active agent — FDA, Substances Added to Food: LECITHIN
Lecithin is a widely used emulsifier found in chocolate, margarine, baked goods and infant formula. In chocolate it lowers viscosity, reducing the amount of cocoa butter needed.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| Australia and New Zealand | Permitted, with conditions | 56 food categories highest permitted level 15,000 mg/L Show every food category
| Food Standards Code, Schedule 15, S15—5and 55 further provisionsretrieved 2026-10-17 |
| Canada | Permitted, with conditions | highest permitted level 5,000 mg/kg 21 permitted uses Show every permitted use
| Health Canadaand 20 further provisionsretrieved 2026-10-17 |
| European Union | Permitted, with conditions | 80 food categories highest permitted level 30,000 mg/l Show every food category
| Regulation (EC) No 1333/2008, Annex IIand 79 further provisionsretrieved 2026-10-18 |
| Great Britain | Permitted, with conditions | 77 food categories highest permitted level 30,000 mg/kg or mg/l Show every food category
| Assimilated Regulation (EC) No 1333/2008, Annex II (as at 28 June 2024)and 76 further provisionsretrieved 2026-10-18 |
| Japan | No listing matchedThis site imports only Japan’s list of designated additives (Appended Table 1 to the Regulations for Enforcement of the Food Sanitation Act), matched by English name. Existing additives, natural flavouring agents and ordinary foods used as additives are permitted outside that list and are not imported, so an empty row does not show that Japan does not permit the substance. | ||
| South Korea | Permitted, with conditions | Designated food additive: Standards and Specifications for Food Additives, Part III, 1. …Designated food additive: Standards and Specifications for Food Additives, Part III, 1. 일반식품첨가물 (general food additives), 레시틴 (“Lecithin”, the English the Code prints beside it). Main use (주용도) of 레시틴: 유화제, 산화방지제. Standard for use (사용기준) of 레시틴: (1) [to be used under the general standard for use in II. 2. 1), the minimum amount that achieves the technical effect, with no limit set for this additive in particular] “II. 2. 1)의 규정에 따라 사용하여야 한다.” The Korean is the standard as published. There is no official English translation of the current Code (the English version on MFDS’s website is the 2020 edition and has no legal effect); the English in square brackets is this site’s description of what each sentence does, not a translation of the foods or the levels. Compositional specifications (Part IV) are not imported, nor are the general standards in Part II, which apply to every additive. | Standards and Specifications for Food Additives (식품첨가물의 기준 및 규격), MFDS Notification, Part III (Standards for use, by item)retrieved 2026-10-18 |
| United States | Permitted | 21 CFR 184.1400retrieved 2026-10-17 | |
| Codex Alimentarius | Permitted, with conditions | 32 food categories highest permitted level 5,000 mg/kg Show every food category and its notes
| CXS 192-1995 Table Three, INS 322(i)and 32 further provisionsretrieved 2026-09-07 |
How much is permitted
A listing usually limits the quantity as well as the food. Only one of the forms that takes is a figure: quantum satis and good manufacturing practice permit the amount the technological effect requires and no more, which is a limit rather than the absence of one. Figures below are the range across every food category this page is listed in, and categories differ between regulators — see how much is permitted.
| Australia and New Zealand | 5,000 mg/kg – 15,000 mg/kg | 2 numeric limit, 54 GMP |
|---|---|---|
| Canada | 2,000 mg/kg – 5,000 mg/kg | 4 numeric limit, 10 GMP, 7 no quantity stated |
| European Union | 1,000 mg/kg – 30,000 mg/kg | 5 numeric limit, 46 several limits, 6 quantum satis, 23 no quantity stated |
| Great Britain | 1,000 mg/kg – 30,000 mg/kg | 5 numeric limit, 72 quantum satis |
| South Korea | — | 1 no quantity stated |
| United States | — | 1 no quantity stated |
| Codex Alimentarius | 5,000 mg/kg | 4 numeric limit, 29 GMP |
What it is made from
Extracted from soya beans, sunflower seeds or rapeseed, and historically from egg yolk, which is where the name comes from. Soy and sunflower are the usual commercial sources today, but the listing covers egg-derived lecithin too, so the source matters to both an allergy and a vegan diet and is not always stated.
- Vegan status depends on the source
- Vegetarian
This is not an omission. What this additive is made from is not fixed — depending on the manufacturer it may be plant, animal or microbial in origin, nobody is required to say which, and the same product can change source between production runs. Ask the manufacturer if it matters to you; a label cannot answer it.
Compare other additives on the dietary indexes.
Allergen labelling
- May be from eggs. Can be extracted from egg yolk, though soybean, sunflower and rapeseed are the usual sources.
- May be from soybeans. Most often extracted from soybean oil; also from sunflower, rapeseed or egg yolk.
The EU’s list of allergens an ingredients list must emphasise is Regulation (EU) No 1169/2011, Annex II (consolidated text of 1 April 2025). Whether a product must declare one depends on what its additive was actually made from, which the label may not show; see the allergen origin index.
- CAS registry number
- 8002-43-5
The two specifications, compared
The European Union sets identity and purity by regulation; JECFA publishes its own through FAO, advisory until a country adopts it. Both documents are below in full. These are the parameters each puts a number on.
| Parameter | European Union | JECFA |
|---|---|---|
| Assay | no less than 60 % | no less than 60 % |
| Loss on drying | no more than 2 % | no more than 2 % |
| Lead | no more than 2 mg/kg | no more than 2 mg/kg |
| Arsenic | no more than 3 mg/kg | — |
| Mercury | no more than 1 mg/kg | — |
The two documents state the same figures for every parameter compared here.
How the EU defines it
The legal specification an additive must meet to be sold as this E number in the EU — what it is, how it may be made, and the purity it must reach. From Commission Regulation (EU) No 231/2012.
E 322 Lecithins
Lecithins are mixtures or fractions of phosphatides obtained by physical procedures from animal or vegetable foodstuffs; they also include hydrolysed products obtained through the use of harmless and appropriate enzymes. The final product must not show any signs of residual enzyme activity The lecithins may be slightly bleached in aqueous medium by means of hydrogen peroxide. This oxidation must not chemically modify the lecithin phosphatides
Synonyms: Phosphatides; Phospholipids
Assay, identification and purity criteria
Description and assay
- Einecs
- 232-307-2
- Assay
- Lecithins: not less than 60,0 % of substances insoluble in acetone Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone
- Description
- Lecithins: brown liquid or viscous semi-liquid or powder Hydrolysed lecithins: light brown to brown viscous liquid or paste
Identification
- Test for choline
- Passes test
- Test for phosphorus
- Passes test
- Test for fatty acids
- Passes test
- Test for hydrolysed lecithin
- To a 800 ml beaker add 500 ml of water (30-35 °C). Then slowly add 50 ml of the sample with constant stirring. Hydrolysed lecithin will form a homogeneous emulsion. Non-hydrolysed lecithin will form a distinct mass of about 50 g
Purity criteria
- Loss on drying
- Not more than 2,0 % (105 °C, 1 hour)
- Toluene-insoluble matter
- Not more than 0,3 %
- Acid value
- Lecithins: not more than 35 mg of potassium hydroxide per gram Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram
- Peroxide value
- Equal to or less than 10
- Arsenic
- Not more than 3 mg/kg
- Lead
- Not more than 2 mg/kg
- Mercury
- Not more than 1 mg/kg
How JECFA defines it
The international specification for identity and purity, prepared by the Joint FAO/WHO Expert Committee on Food Additives and published by FAO. It is a different document from any above, written by a different body and revised on its own cycle; it is advisory, and a country adopts it or does not.
INS 322(i) Lecithin
Usually prepared from oil-bearing seeds used for food, especially soybeans; may also be prepared from animal sources; a complex mixture of acetone-insoluble phosphatides which consists chiefly of phosphatidyl-choline, phosphatidyl- ethanolamine, and phosphatidyl-inositol, combined with various amounts of other substances such as triglycerides, fatty acids, and carbohydrates; refined grades may contain any of these components in varying proportions and combinations depending on the type of fractionation used; its oil-free forms, the preponderance of triglycerides and fatty acids is removed and the product contains 90% or more of phosphatides representing all or certain fractions of the total phosphatide complex.
Synonyms: Phosphatides, phospholipids; INS No. 322(i) Phosphatides; Phospholipids
Assay, identification and purity criteria
Description and assay
- Specification history
- Prepared at the 41st JECFA (1993), published in FNP 52 Add 2 (1993) superseding specifications prepared at the 30th JECFA (1986), published in FNP 37 (1986) and FNP 52 (1992). Metals and arsenic specifications revised at the 61st JECFA (2003). An ADI not limited' was established at the 17th JECFA (1973)
- C.A.S. number
- 8002-43-5
- Assay
- Not less than 60% of acetone-insoluble matter (phosphatides)
- DESCRIPTION
- Consistency of both natural grades and refined grades may vary from plastic to fluid, depending upon free fatty acid and oil content, and upon the presence or absence of other diluents; from light yellow to brown, depending on the source, on crop variations, and on whether it is bleached or unbleached; odourless or has a characteristic, slight nut-like odour. Edible diluents, such as cocoa butter and vegetable oils, often replace soybean oil to improve functional and flavour characteristics.
- FUNCTIONAL USES
- Emulsifier, antioxidant
- METHOD OF ASSAY
- Purification of phosphatides Wash about 10 g of the sample 3 times well with each 100 ml of acetone. The insoluble residue (phosphatides) is used. Residues (phosphatides) obtained from assays carried out previously can also be used. Dissolve 5 g of these phosphatides in 10 ml of petroleum ether, and add 25 ml of acetone to the solution. Transfer approximately equal portions of the precipitate to each of two 40-ml centrifuge tubes using additional portions of acetone to facilitate the transfer. Stir thoroughly, dilute to 40 ml with acetone, stir again, chill for 15 min in an ice bath, stir again, and then centrifuge for 5 min. Decant the acetone, stir, chill, centrifuge, and decant as before. The solids after the second centrifugation require no further purification and may be used for preparing the phosphatide-acetone solution. To saturate about 16 litres of acetone, 5 g of the purified phosphatides are required. Phosphatide acetone solution Add a quantity of purified phosphatides to sufficient acetone, previously cooled to a temperature of about 5 o , to form a saturated solution, and maintain the mixture at this temperature for 2 h., shaking it vigorously at 15-min. intervals. Decant the solution through a rapid filter paper, avoiding the transfer of any undissolved solids to the paper and conducting the filtration under refrigerated conditions (not above 5º). Procedure If lecithin is plastic or semisolid, soften a portion of the sample by warming it in a water bath at a temperature not exceeding 60 o and then mixing it thoroughly. Transfer about 2 g of a well-mixed sample, accurately weighed, into a previously tared 40-ml centrifuge tube, containing a glass stirring rod, and add 15 ml of Phosphatide-Acetone Solution from a buret. Warm the mixture in a water bath until the lecithin melts, but avoid evaporation of the acetone. Stir until the sample is completely disintegrated and dispersed, and then transfer the tube into an ice bath, chill for 5 min, remove from the ice bath, and add about one half of the required volume of Phosphatide-Acetone Solution, previously chilled for 5 min in an ice bath. Stir the mixture to complete dispersion of the sample, dilute to 40 ml with chilled Phosphatide-Acetone Solution (5 o ), again stir, and return the tube and contents to the ice bath for 15 min. At the end of the 15-min chilling period, stir again while still in the ice bath, remove the stirring rod, temporarily supporting it in a vertical upside-down position, and centrifuge the mixture immediately at about 2000 rpm for 5 min. Decant the supernatant liquid from the centrifuge tube, crush the centrifuged solids with the same stirring rod previously used, and refill the tube to the 40-ml mark with chilled (5 o ) Phosphatide-Acetone Solution and repeat the chilling, stirring, centrifugation, and decantation procedure previously followed. After the second centrifugation and decantation of the supernatant acetone, again crush the solids with the assigned stirring rod, and place the tube and its contents in a horizontal position at room temperature until the excess acetone has evaporated. Mix the residue again, dry the centrifuge tube and its contents at 105 o for 45 min in a forced-draft oven, cool, and weigh. Calculate the percentage of acetone-insoluble matter by the formula (100R/S) - B, in which R is the weight of residue, S is the weight of the sample, and B is the percentage of toluene-insoluble matter (see TESTS).
Identification
- Solubility (Vol. 4)
- Only partially soluble in water; readily hydrates to form emulsions; oil-free phosphatides are soluble in fatty acids, but practically insoluble in fixed oils
- Test for phosphorus
- Ignite 1 g of the sample with 2 g of anhydrous sodium carbonate. Cool and dissolve the residue in 5 ml of water and 5 ml of nitric acid. Add 5 ml of ammonium molybdate TS and heat to boiling. A yellow precipitate is obtained.
- Test for choline
- To 0.5 g of the sample, add 5 ml of diluted hydrochloric acid (1+1), heat in a water bath for 2 h, and filter. Use this solution as the test solution. Perform Paper Chromatography with 10 μl of the test solution, using choline chloride solution (1+200) as the control solution and n-butanol-water-acetic acid mixture (4:2:1) as the developing solvent. A red-orange spot corresponding to the spot obtained from the control solution is observed. For the filter paper, use a No. 2 filter paper for chromatography. Stop the development when the developing solvent rises about 25 cm, air-dry, spray with Dragendorff TS to develop a colour, and observe in daylight.
- Test for fatty acids
- Reflux 1 g of the sample for 1 h with 25 ml of 0.5 N ethanolic potassium hydroxide. When cooled to 0 o , a precipitate of potassium soap is obtained.
- Test for hydrolysis
- To a 800 ml beaker add 500 ml of water (30-35 o ). Then slowly add 50 ml of the sample with constant stirring. Hydrolyzed lecithin will form a homogeneous emulsion. Non-hydrolyzed lecithin will form a distinct mass of about 50 g.
Purity criteria
- Loss on drying (Vol. 4)
- Not more than 2% (105º, 1 h)
- Acid value
- Not more than 36 See description under TESTS
- Peroxide value
- Not more than 10 See description under TESTS
- Toluene-insoluble matter
- Not more than 0.3% See description under TESTS
- Lead (Vol. 4)
- Not more than 2 mg/kg Determine using an atomic absorption technique appropriate to the specified level. The selection of sample size and method of sample preparation may be based on the principles of the method described in Volume 4, “Instrumental Methods.”
- Acid value
- Weigh accurately about 2 g of the well-mixed sample into a 250-ml Erlenmeyer flask. Dissolve in 50 ml of petroleum ether by shaking gently. Then add 50 ml of ethanol, previously neutralized to phenolphthalein with 0.1 N sodium hydroxide, and shake to mix. Add 4 drops of phenolphthalein TS and titrate while shaking with 0.1 N sodium hydroxide until the pink colour persists for 5 sec.
- Peroxide value
- Reagents - Acetic acid-chloroform solution: Mix 3 volumes of acetic acid with 2 volumes of chloroform. - Potassium iodide solution, saturated: Dissolve excess potassium iodide in freshly boiled water. Excess solid must remain. Store in the dark. Test daily by adding 0.5 ml to 30 ml of the acetic acid-chloroform solution, then add 2 drops of starch TS. If the solution turns blue, requiring more than 1 drop of 0.1 N sodium thiosulfate to discharge the colour, prepare a fresh solution. Procedure Weigh accurately about 5 g of the sample into a 250-ml Erlenmeyer flask. Add 30 ml of the acetic acid-chloroform solution and swirl to dissolve. Add 0.5 ml of the saturated potassium iodide solution, allow to stand with occasional shaking for 1 min, and add 30 ml of water. Slowly titrate with 0.01 N sodium thiosulfate with vigorous shaking until the yellow colour is almost gone. Add about 0.5 ml of starch TS, and continue the titration, shaking vigorously to release all the iodine from the chloroform layer, until the blue colour disappears. Perform a blank determination and make any necessary correction. where S = ml of N sodium thiosulfate N = normality of sodium thiosulfate W = weight of the sample (g)
- Toluene-insoluble matter
- Weigh 10 g of the well-mixed sample into a 250-ml flask. Add 100 ml of toluene and shake until dissolved. Filter through a tared filter funnel G3 or equivalent with a porosity of 16-40 μm. Wash the flask with 25-ml portions of toluene and pour the washings through the funnel. Place the funnel in a forced-draft oven and dry at 105 o for 1 h. Weigh dried funnel and subtract tare to determine weight of toluene insoluble residue:
INS 322(ii) Lecithin, Partially Hydrolyzed
Prepared by partial hydrolysis of lecithin by the use of a suitable lipase. When the desired degree of hydrolysis is attained, the product is heated in order to inactivate the residual enzyme.
Synonyms: Phosphatides, phospholipids; INS No. 322(ii) Phosphatides; Phospholipids
Assay, identification and purity criteria
Description and assay
- Specification history
- Prepared at the 37th JECFA (1990), published in FNP 52 (1992) superseding specifications prepared at the 30th JECFA (1986), published in FNP 37 (1986). Metals and arsenic specifications revised at the 55th JECFA (2000). An ADI 'not limited' was established at the 17th JECFA (1973)
- C.A.S. number
- 8002-43-5
- Assay
- Not less than 56% of acetone-insoluble matter (phosphatides)
- DESCRIPTION
- Consistency may vary from plastic to fluid, depending upon free fatty acid and oil content, and upon the presence or absence of other diluents. Its colour varies from light yellow to brown, depending on the source, on crop variations, and on whether it is bleached or unbleached; odourless or has a characteristic, slight nutlike odour. Edible diluents, such as cocoa butter and vegetable oils, often replace soybean oil to improve functional and flavour characteristics.
- FUNCTIONAL USES
- Emulsifier, antioxidant synergist
- METHOD OF ASSAY
- Purification of phosphatides Wash about 10 g of the sample 3 times well with each 100 ml of acetone. The insoluble residue (phosphatides) is used. Residues (phosphatides) obtained from assays carried out previously can also be used. Dissolve 5 g of these phosphatides in 10 ml of petroleum ether, and add 25 ml of acetone to the solution. Transfer approximately equal portions of the precipitate to each of two 40-ml centrifuge tubes using additional portions of acetone to facilitate the transfer. Stir thoroughly, dilute to 40 ml with acetone, stir again, chill for 15 min in an ice bath, stir again, and then centrifuge for 5 min. Decant the acetone, stir, chill, centrifuge, and decant as before. The solids after the second centrifugation require no further purification and may be used for preparing the phosphatide-acetone solution. To saturate about 16 litres of acetone, 5 g of the purified phosphatides are required. Phosphatide acetone solution Add a quantity of purified phosphatides to sufficient acetone, previously cooled to a temperature of about 5 o , to form a saturated solution, and maintain the mixture at this temperature for 2 h., shaking it vigorously at 15-min. intervals. Decant the solution through a rapid filter paper, avoiding the transfer of any undissolved solids to the paper and conducting the filtration under refrigerated conditions (not above 5º). Procedure If lecithin is plastic or semisolid, soften a portion of the sample by warming it in a water bath at a temperature not exceeding 60 o and then mixing it thoroughly. Transfer about 2 g of a well-mixed sample, accurately weighed, into a previously tared 40-ml centrifuge tube, containing a glass stirring rod, and add 15 ml of Phosphatide-Acetone Solution from a buret. Warm the mixture in a water bath until the lecithin melts, but avoid evaporation of the acetone. Stir until the sample is completely disintegrated and dispersed, and then transfer the tube into an ice bath, chill for 5 min, remove from the ice bath, and add about one half of the required volume of Phosphatide-Acetone Solution, previously chilled for 5 min in an ice bath. Stir the mixture to complete dispersion of the sample, dilute to 40 ml with chilled Phosphatide-Acetone Solution (5 o ), again stir, and return the tube and contents to the ice bath for 15 min. At the end of the 15-min chilling period, stir again while still in the ice bath, remove the stirring rod, temporarily supporting it in a vertical upside-down position, and centrifuge the mixture immediately at about 2000 rpm for 5 min. Decant the supernatant liquid from the centrifuge tube, crush the centrifuged solids with the same stirring rod previously used, and refill the tube to the 40-ml mark with chilled (5 o ) Phosphatide-Acetone Solution and repeat the chilling, stirring, centrifugation, and decantation procedure previously followed. After the second centrifugation and decantation of the supernatant acetone, again crush the solids with the assigned stirring rod, and place the tube and its contents in a horizontal position at room temperature until the excess acetone has evaporated. Mix the residue again, dry the centrifuge tube and its contents at 105 o for 45 min in a forced-draft oven, cool, and weigh. Calculate the percentage of acetone-insoluble matter by the formula (100R/S) - B, in which R is the weight of residue, S is the weight of the sample, and B is the percentage of toluene-insoluble matter (see TESTS).
Identification
- Solubility (Vol. 4)
- Only partially soluble in water, but readily hydrates to form emulsions; the oil-free phosphatides are soluble in fatty acids, but are practically insoluble in fixed oils.
- Test for phosphorus
- Ignite 1 g of the sample with 2 g of anhydrous sodium carbonate. Cool and dissolve the residue in 5 ml of water and 5 ml of nitric acid. Add 5 ml of ammonium molybdate TS and heat to boiling. A yellow precipitate is obtained.
- Test for choline
- To 0.5 g of the sample, add 5 ml of diluted hydrochloric acid (1+1), heat in a water bath for 2 h, and filter. Use this solution as the test solution. Perform Paper Chromatography with 10 μl of the test solution, using choline chloride solution (1+200) as the control solution and n-butanol-water-acetic acid mixture (4:2:1) as the developing solvent. A red-orange spot corresponding to the spot obtained from the control solution is observed. For the filter paper, use a No. 2 filter paper for chromatography. Stop the development when the developing solvent rises about 25 cm, air-dry, spray with Dragendorff TS to develop a colour, and observe in daylight.
- Test for fatty acids
- Reflux 1 g of the sample for 1 h with 25 ml of 0.5 N ethanolic potassium hydroxide. When cooled to 0 o , a precipitate of potassium soap is obtained.
- Test for hydrolysis
- To a 800 ml beaker add 500 ml of water (30-35 o ). Then slowly add 50 ml of the sample with constant stirring. Hydrolyzed lecithin will form a homogeneous emulsion. Non-hydrolyzed lecithin will form a distinct mass of about 50 g.
Purity criteria
- Loss on drying (Vol. 4)
- Not more than 2% (105º, 1 h)
- Acid value
- Not more than 45 See description under TESTS
- Peroxide value
- Not more than 10 See description under TESTS
- Toluene-insoluble matter
- Not more than 0.3% See description under TESTS
- Lead (Vol. 4)
- Not more than 2 mg/kg Determine using an atomic absorption technique appropriate to the specified level. The selection of sample size and method of sample preparation may be based on the principles of the method described in Volume 4, “Instrumental Methods.”
- Test: Acid value
- Weigh accurately about 2 g of the well-mixed sample into a 250-ml Erlenmeyer flask. Dissolve in 50 ml of petroleum ether by shaking gently. Then add 50 ml of ethanol, previously neutralized to phenolphthalein with 0.1 N sodium hydroxide, and shake to mix. Add 4 drops of phenolphthalein TS and titrate while shaking with 0.1 N sodium hydroxide until the pink colour persists for 5 sec.
- Test: Peroxide value
- Reagents - Acetic acid-chloroform solution: Mix 3 volumes of acetic acid with 2 volumes of chloroform. - Potassium iodide solution, saturated: Dissolve excess potassium iodide in freshly boiled water. Excess solid must remain. Store in the dark. Test daily by adding 0.5 ml to 30 ml of the acetic acid-chloroform solution, then add 2 drops of starch TS. If the solution turns blue, requiring more than 1 drop of 0.1 N sodium thiosulfate to discharge the colour, prepare a fresh solution. Procedure Weigh accurately about 5 g of the sample into a 250-ml Erlenmeyer flask. Add 30 ml of the acetic acid-chloroform solution and swirl to dissolve. Add 0.5 ml of the saturated potassium iodide solution, allow to stand with occasional shaking for 1 min, and add 30 ml of water. Slowly titrate with 0.01 N sodium thiosulfate with vigorous shaking until the yellow colour is almost gone. Add about 0.5 ml of starch TS, and continue the titration, shaking vigorously to release all the iodine from the chloroform layer, until the blue colour disappears. Perform a blank determination and make any necessary correction. where S = ml of N sodium thiosulfate N = normality of sodium thiosulfate W = weight of the sample (g)
- Test: Toluene-insoluble matter
- Weigh 10 g of the well-mixed sample into a 250-ml flask. Add 100 ml of toluene and shake until dissolved. Filter through a tared filter funnel G3 or equivalent with a porosity of 16-40 μm. Wash the flask with 25-ml portions of toluene and pour the washings through the funnel. Place the funnel in a forced-draft oven and dry at 105 o for 1 h. Weigh dried funnel and subtract tare to determine weight of toluene insoluble residue:
Authorised in other additives, enzymes, flavourings and nutrients
These authorisations are not for use in food. They let this substance be used inside another additive, a food enzyme, a flavouring or a nutrient preparation — often as a carrier — and it reaches food only as part of that product. Annex III to Regulation (EC) No 1333/2008.
| Part | May be used in | Maximum level | Citation |
|---|---|---|---|
| Annex III, Part 1: Carriers in food additives | Colours and fat-soluble antioxidants | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 1 |
| Annex III, Part 1: Carriers in food additives | Glazing agents for cassavas | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 1 |
| Annex III, Part 1: Carriers in food additives | Glazing agents for fruit | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 1 |
| Annex III, Part 2: Food additives other than carriers in food additives | All food additive preparationsAuthorised as a member of Table 1 of Part 6, listed as "Table 1" Note (1): Except enzymes authorised as food additives. | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 2, via Table 1 of Part 6 |
| Annex III, Part 3: Food additives including carriers in food enzymes | Food enzymesCan be used as a carrier: Yes Note (1): Including enzymes authorised as food additives. | In enzyme preparation: quantum satis In final food except beverages: quantum satis In beverages: quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 3 |
| Annex III, Part 4: Food additives including carriers in food flavourings | All flavouringsAuthorised as a member of Table 1 of Part 6, listed as "Table 1" | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 4, via Table 1 of Part 6 |
| Annex III, Part 5, Section A: Food additives added in nutrients except in nutrients intended to be used in foodstuffs listed in Part E, point 01.10, of Annex II and foodstuffs for infants and young children listed in Part E, point 13.1, of Annex II | All nutrientsCan be used as a carrier: Yes | quantum satis | Regulation (EC) No 1333/2008, Annex III, Part 5, Section A |
| Annex III, Part 5, Section B: Food additives added in nutrients intended to be used in foodstuffs listed in Part E, point 01.10, of Annex II and foodstuffs for infants and young children listed in Part E, point 13.1, of Annex II | All nutrients (food category: Foods for infants and young children, and foods mentioned in Part E, point 01.10, of Annex II) | For uses in nutrient preparations under the condition that the maximum level in foods mentioned in Part E, points 01.10 and 13.1, of Annex II is not exceeded | Regulation (EC) No 1333/2008, Annex III, Part 5, Section B |
Every name it appears under
27 recorded names. A label may use any of them.
E number
- E322
INS number
- 322(i)
CAS registry number
- 8002-43-5
As it appears in regulation
- Lecithin
- Lecithins
Other names
- E 322
- LECITHIN
- Lecithins
- Phosphatides
- Phospholipids
Hazard reference values
No reference value for this substance in the sources we hold.
Evidence and how bodies read it
What assessing bodies concluded
Each conclusion is paraphrased in the body's own framing, from the published opinion linked beneath it. Where bodies differ, both stand; this site does not adjudicate between them or add a view of its own.
EFSA 2020
In a follow-up covering infants below 16 weeks, the FAF Panel concluded that lecithins (E 322) in infant formula and special medical foods do not raise safety concerns up to the maximum permitted level, having compared choline levels with those in human milk. It considered it feasible to amend the specifications for toxic elements and add limits for cadmium and microbiological criteria.
EFSA 2017
The ANS Panel concluded that no numerical ADI is needed for lecithins (E 322) and that there is no safety concern for the general population over one year of age at the refined exposure assessment, including for choline released from lecithins. It reached the same conclusion for infants from 12 weeks and for infants and young children consuming foods for special medical purposes.
Common questions
Assembled from what is above, in the words the questions are usually asked in. Each answer is the same statement the relevant section makes, with the same citations behind it.
- What is E 322?
- E 322 is Lecithin. Lecithin is a widely used emulsifier found in chocolate, margarine, baked goods and infant formula. In chocolate it lowers viscosity, reducing the amount of cocoa butter needed.
- What is Lecithin used for in food?
- It is listed as an emulsifier — the role Canada, Codex and the US assign it. This page shows every function each regulator records, with the citation for each.
- Where is Lecithin permitted?
- Of the seven regulators this site reads, Australia and New Zealand, Canada, the EU, Great Britain, South Korea, the US and the Codex standard permit it. Each permission is for named foods at named levels, not a blanket one; the table on this page gives them with citations.
- Is Lecithin vegan?
- It depends on the source, and a label will not tell you. Lecithin can be made from plant or animal material, manufacturers are not obliged to say which, and the same product can change between production runs. Anyone who needs to know has to ask the manufacturer.
Sources for this page
- anz retrieved 2026-10-17
- ca retrieved 2026-10-17
- eu retrieved 2026-10-18
- gb retrieved 2026-10-18
- kr retrieved 2026-10-18
- ecfr retrieved 2026-10-17
- gsfa retrieved 2026-09-07
- euspecs retrieved 2026-10-18
- jecfaspecs retrieved 2026-09-23
Full licence terms and publisher details on Sources. How this page is built and updated: Method.
Machine-readable: a JSON record of this additive is given on request —how to ask for access.
Follow changes to Lecithin:Atom feed — regulatory events, and any change the weekly refresh detects in its provisions.