Lutein esters from Tagetes erecta
E161b · Lutein · LIUTEINAS · Luteiin · Lutein · Luteinas · Lutejna · LUTEOLIINI · Luteoliini, luteiini · Luteína · Luteīns · Lutéine · Λουτεΐνη · ЛутеинINS 161b(iii)
Listed as a colour by Codex and the EU.
Listed as colours (EU, Codex)
- European Union: Colours — Regulation (EC) No 1333/2008, Annex II, Part B, 1. Colours (consolidated text 02008R1333-20260818)
- Codex Alimentarius: Colour — CXS 192-1995 Table Three, INS 161b(iii)
Lutein esters from marigold are a yellow food colour. The same flower is fed to hens to deepen yolk colour, but here the extracted pigment is added to food directly.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| Australia and New Zealand | No listed food uses foundThis site has not matched this substance to any food use on this jurisdiction’s list of authorised food additives. A food additive may be used only in foods that list names. Flavourings, enzymes, processing aids and added nutrients are regulated separately and do not appear on it. | ||
| Canada | No listing matchedHealth Canada’s lists name additives without E or INS numbers, so this site matches them by exact name. A substance listed there under a name this site does not recognise has no row here. | ||
| European Union | Permitted, with conditions | 29 food categories highest permitted level 500 mg/l Show every food category
| Regulation (EC) No 1333/2008, Annex IIand 28 further provisionsretrieved 2026-10-18 |
| Great Britain | Permitted, with conditions | 37 food categories highest permitted level 500 mg/kg or mg/l Show every food category
| Assimilated Regulation (EC) No 1333/2008, Annex II (as at 28 June 2024)and 36 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 | No listing matchedThis site imports Part III of South Korea’s Standards and Specifications for Food Additives, matched by CAS number, then INS number, then exact name. Mixed preparations and sanitisers are not imported, and an entry whose identifiers disagreed with a page’s is held for review, so an empty row does not show that South Korea does not permit the substance. | ||
| United States | Not listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited. | ||
| Codex Alimentarius | Permitted | no numerical limit (good manufacturing practice) | CXS 192-1995 Table Three, INS 161b(iii)retrieved 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.
| European Union | 50 mg/kg – 500 mg/kg | 28 numeric limit, 1 quantum satis |
|---|---|---|
| Great Britain | 50 mg/kg – 500 mg/kg | 31 numeric limit, 5 several limits, 1 quantum satis |
| Codex Alimentarius | — | 1 GMP |
What it is made from
Extracted from the flowers of Tagetes erecta, the Aztec marigold, where lutein occurs bound to fatty acids as esters.
- Vegan
- Vegetarian
Compare other additives on the dietary indexes.
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 161b(iii) Lutein esters from Tagetes erecta
Lutein esters from Tagetes erecta is obtained by solvent extraction of dried petals of Tagetes erecta L., further purification and subsequent removal of solvents under vacuum. Lutein diesters account for the major part and a smaller proportion of zeaxanthin diesters is also present. The esters contain saturated long chain fatty acids, such as myristic, palmitic and stearic acid in various proportions with palmitic acid being a major component. Waxes naturally occurring in the source material may also be present. Only the following solvents may be used in the production: methanol, ethanol, 2-propanol, hexane, acetone, methyl ethyl ketone and carbon dioxide. Usually food grade antioxidants are added to stabilize the product. Products of commerce are normally further formulated e.g. in order to standardize colour content or to obtain water soluble/dispersible products
Synonyms: Xanthophyll esters Xanthophylls
Assay, identification and purity criteria
Description and assay
- Specification history
- Prepared at the 82nd JECFA (2016) and published in FAO JECFA Monograph 19 (2016), superseding tentative specifications for Lutein esters from Tagetes erecta prepared at the 79th JECFA (2014), published in FAO JECFA Monographs 16 (2014). An ADI ”not specified” was established at the 82nd JECFA (2016).
- Chemical formula
- Lutein esters: R = CH3(CH2)10CO, CH3(CH2)12CO, CH3(CH2)14CO or CH3(CH2)16CO
- Formula weight Assay
- 496.43 Not less than 75% total carotenoid esters (as lutein esters)
- DESCRIPTION
- Dark orange brown solid
- FUNCTIONAL USES
- Colour, nutrient
- METHOD OF ASSAY
- Determine the total content of carotenoid esters as follows: Apparatus: UV/VIS spectrophotometer 1-cm cuvettes Sample analysis: Accurately weigh about 1.0 g of the sample into a 100 ml volumetric flask. Add about 80 ml hexane and 5 ml 2-propanol. Place the volumetric flask into an ultrasonic bath for 5 min to achieve complete dissolution. Let cool to room temperature. Adjust to the 100 ml volume mark with hexane. Mix well. Make serial dilutions with hexane such that the absorbance at 428 nm falls between 0.2 and 0.8.. Measure absorbance of the sample at 428 nm (inflection point of the curve, isosbestic point of all lutein isomers) using hexane as blank. Calculation: Total carotenoid ester content (% w/w) = Abs x d x 100 A 1% 1cm isosbestic xW Where: Abs is the measured absorbance d is the dilution factor A 1% 1cm isosbestic (specific absorbance of lutein ester at the wavelength of the isosbestic point) = 898 W is the weight of sample (g)
Identification
- Solubility (Vol. 4)
- Insoluble in water, soluble in hexane
- Spectrophotometry (Vol. 4)
- A hexane solution of the sample shows a maximum absorption at about 444 nm
- Test for carotenoids (Vol. 4)
- The colour of a solution of the sample in acetone disappears after successive addition of a 5% solution of sodium nitrite in 0.5 M sulfuric acid.
Purity criteria
- Ash (Vol. 4)
- Not more than 1%
- Zeaxanthin (Vol. 4)
- Not more than 10% of total carotenoids. See description under TESTS.
- Residual solvents (Vol. 4)
- Determine using method (I) Hexane Methanol Not more than 50 mg/kg, Ethanol singly or in combination 2-Propanol Acetone Methyl ethyl ketone
- Waxes
- Not more than 25%. See description under TESTS)
- Lead (Vol. 4)
- Not more than 2 mg/kg. Determine using a method 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 (under “General Methods, Metallic Impurities”)..”
- Test: Zeaxanthin
- Principle The saponified sample is analysed by reversed phase liquid chromatography (HPLC). Reagents Extraction solvent: Hexane:acetone:toluene:absolute ethanol (10:7:7:6) 40% Methanolic potassium hydroxide: Dissolve 40 g of KOH in about 50 ml methanol. Dilute to 100 ml with methanol. 10% Sodium sulfate solution: Dissolve 10 g of sodium sulfate in 100 ml water. Hexane, HPLC-grade Ethyl acetate, HPLC-grade Chromatography Column: 250 mm x 4.6 mm i.d. beta-cyclodextrin (Cyclobond I or equivalent) Mobile phase: Hexane/Ethyl acetate (75/25) Filter through a 0.45μm membrane Flow rate: 1.0 ml/min Detector wavelength: UV/Vis or PDA at 445nm Injection volume: 10 μl Procedure Weigh about 10 mg of sample and transfer into a 100 ml round bottom flask. Dissolve in 30 ml of extraction solvent. Add 2 ml methanolic potassium hydroxide solution. Attach a reflux condenser to the flask to prevent loss of solvent. Place flask in a 56° water bath for 20 min. Cool sample and transfer to a 100 ml volumetric flask using a small volume of extraction solvent. Let stand in the dark for 1 h. Add 30 ml of hexane, swirl for 1 min. Dilute with sodium sulfate solution up to the 100 ml mark. Shake 1 min. Let stand in the dark until organic layer (top layer) is clear (about 1 h). Transfer 1 ml of organic layer to a scintillation vial. Evaporate to almost dry under vacuum at 45°. Dissolve residue with 1 ml mobile phase. Inject 10 μl of this solution into the chromatograph. Results A typical chromatograph should look as follows. Integrate the area under peaks at ca: 18min (di-cis lutein) 19.5 min(trans lutein) 22 min(trans zeaxanthin) 32 min (9-cis lutein) 37.6 min (13-cis lutein) 40.3min (15-cis lutein) 59.8 min (13-cis zeaxanthin) Calculate the percentage of zeaxanthin from the sum of the areas of the trans-zeaxanthin peak (RT ~ 20 – 22 min) and cis-zeaxanthin peak (RT ~ 55 - 65 min) vs the sum of the areas of all the lutein and zeaxanthin peaks.
- Test: Waxes
- Determine by gas chromatography using the following conditions: Apparatus Gas chromatograph (GC) equipped with an autosampler, a splitless injection system, flame ionization detector (FID), programmable column and detector GC column DB-5 (30 m x 0.25 mm ID with a 0.25 μm film thickness) or equivalent GC injector temperature: 280° FID temperature: 350° GC temperature program: 50° (2 min) 13°/min to 340° and hold for 8 min Carrier gas (Helium) flow rate: 1.0 ml/min Injection mode: splitless Injection volume: 1.0 μl Standards: Hydrocarbons mixed standard: C25 to C46 Internal standard: Hexatriancontane (C36) Standard solutions: Prepare standard solutions by addition of hydrocarbon standards to methylene chloride to get hydrocarbon concentrations of 2.0, 5.0, 10, 25, 50, mg/l respectively. Add required quantity of hexatriancontane- internal standard to get a final concentration 50 mg/l in all standard solutions. Sample Preparation Accurately weigh 100 mg of sample into a centrifuge tube and dissolve in exactly 20 ml of methylene chloride. Sonication or vortex mixing may be required to completely dissolve the product. Centrifuge sample at 2500 rpm for 5 min, if the sample appears turbid. Add 1.6 ml of methylene chloride and 20 μl of (5000 mg/l) hexatriancontane solution (to a final concentration of 50 mg/l) into 2 ml volumetric flask.Transfer 40 μl of sample solution and dilute with methylene chloride to the 2 ml. Transfer the solution into a 2 ml autosampler vial. Analysis Inject 1.0 μl of each of the standards solutions. Record the peak areas. Construct standard curves using the peak ratios of each hydrocarbon to the internal standard against the concentration of the hydrocarbon. Inject 1.0 μl of the sample solution and determine individual wax in the sample(mg/l) from the respective standard curve. Add the concentration of individual waxes to get the total wax concentration in the sample solution (mg/l) Calculation: C (mg/l) x 2 ml x 20 ml x100 Waxes % w/w = ----------------------------------------- 1000 (ml/l) x W (mg) x 0.04 ml = (100 x C)/W Where: C is the total concentration of waxes, mg/l in the sample W is the weight of sample, mg
Every name it appears under
14 recorded names. A label may use any of them.
E number
- E161b
As it appears in regulation
- Lutein
Hazard reference values
| Type | Value | Population | Assessed by | Opinion |
|---|---|---|---|---|
| group ADI | not specified | — | JECFA | 2018 |
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 2011
Reviewing additional studies on lutein esters from Tagetes erecta, the ANS Panel concluded that the ADI of 1 mg/kg bw/day also covers lutein preparations present as esters at levels of at least 60%, and that the esters raise no concern for genotoxicity. It considered the data too limited to extend the ADI to lower-purity preparations or other sources.
EFSA 2010
The ANS Panel established an ADI of 1 mg/kg bw/day for lutein (E 161b), applying an uncertainty factor of 200 because multigeneration and long-term studies were lacking, and specified that it refers to lutein from Tagetes erecta with at least 80% carotenoids. It concluded that refined intake estimates at current use levels were above the ADI at the upper end of the range.
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 INS 161b(iii)?
- INS 161b(iii) is Lutein esters from Tagetes erecta. Lutein esters from marigold are a yellow food colour. The same flower is fed to hens to deepen yolk colour, but here the extracted pigment is added to food directly.
- What is Lutein esters from Tagetes erecta used for in food?
- It is listed as a colour — the role Codex and the EU assign it. This page shows every function each regulator records, with the citation for each.
- Where is Lutein esters from Tagetes erecta permitted?
- Of the seven regulators this site reads, the EU, Great Britain 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 Lutein esters from Tagetes erecta vegan?
- Yes. Lutein esters from Tagetes erecta is not derived from animals, and is suitable for vegetarians. This page says what it is made from and how.
Sources for this page
- eu retrieved 2026-10-18
- gb retrieved 2026-10-18
- gsfa retrieved 2026-09-07
- jecfaspecs retrieved 2026-09-23
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