| Literature DB >> 35600272 |
Maged Younes, Gabriele Aquilina, Laurence Castle, Karl-Heinz Engel, Paul Fowler, Maria Jose Frutos Fernandez, Ursula Gundert-Remy, Rainer Gürtler, Trine Husøy, Melania Manco, Wim Mennes, Peter Moldeus, Sabina Passamonti, Romina Shah, Ine Waalkens-Berendsen, Detlef Wölfle, Matthew Wright, Karlien Cheyns, Manuela Mirat, Ana Maria Rincon, Peter Fürst.
Abstract
Polyglycerol esters of fatty acids (PEFA, E 475) was re-evaluated in 2017 by the former EFSA Panel on Food Additives and Nutrient sources added to Food (ANS). As a follow-up to this assessment, in this opinion, the Panel on Food Additives and Flavouring (FAF) addresses the data gaps identified to support an amendment of the EU specifications for E 475. The Panel performed a risk assessment of undesirable impurities and constituents potentially present in E 475. The Panel concluded that the maximum limits in the EU specifications for the 4 toxic elements (arsenic, lead, mercury and cadmium) should be lowered based on actual levels in the commercial food additive E 475. The Panel also concluded that maximum limits for erucic acid, 3-monochloropropanediol and glycidyl esters should be included in the EU specifications for E 475. Alternatively, the Panel recommends an amendment of the definition of E 475 to include a requirement that the fats and oils used in the manufacturing of E 475 comply with the respective EU legislation regarding suitability for human consumption. Further, the Panel concluded that there is no need for setting a specification limit for the content of trans-fatty acids in E 475 as a limit is established in the Regulation (EU) No 2019/649, i.e. 2 g of trans-fat per 100 g fat in food for the final consumer. Finally, the Panel recommends a modification of the definition of E 475 indicating that polyglycerol used for the manufacturing of E 475 should be produced from glycerol meeting the specifications for E 422 (Commission Regulation (EU) No 231/2012). In this case, respective specification limits for epichlorohydrin, acrolein and butanetriol would not be needed for E 475.Entities:
Keywords: CAS Registry Number 503590‐90‐7; E 475; PEFA; food additive; polyglycerol esters of fatty acids; polyglyceryl fatty acid esters
Year: 2022 PMID: 35600272 PMCID: PMC9109700 DOI: 10.2903/j.efsa.2022.7308
Source DB: PubMed Journal: EFSA J ISSN: 1831-4732
Figure 1General structural formula of PEFA (E 475)
Specifications for PEFA (E 475) according to Commission Regulation (EU) No 231/20121
| Commission Regulation (EU) No 231/2012 | |
|---|---|
|
| Polyglycerol esters of fatty acids are produced by the esterification of polyglycerol with food fats and oils or with fatty acids occurring in foods fats and oils. The polyglycerol moiety is predominantly di‐, tri‐ and tetraglycerol and contains not more than 10% of polyglycerols equal to or higher than heptaglycerol |
| Assay | Content of total fatty acid ester not less than 90% |
|
| Light yellow to amber, oily to very viscous liquids; light tan to medium brown, plastic or soft solids; and light tan to brown, hard, waxy solids |
|
| |
| Tests for glycerol and polyglycerols | Passes test |
| Tests for fatty acids | Passes test |
| Solubility | The esters range from very hydrophilic to very lipophilic, but as a class tend to be dispersible in water and soluble in organic solvents and oils |
|
| |
| Sulfated ash | Not more than 0.5% (800 ± 25°C) |
| Acids other than fatty acids | Less than 1% |
| Free fatty acids | Not more than 6% estimated as oleic acid |
| Total glycerol and polyglycerol | Not less than 18% and not more than 60% |
| Free glycerol and polyglycerol | Not more than 7% |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids; however, these substances may be present up to a maximum level of 6% (expressed as sodium oleate).
Lowest technologically achievable levels for the toxic elements lead, mercury, cadmium and arsenic in commercial E 475 proposed by the interested business operator (Documentation provided to EFSA n. 1)
| Lead | Mercury | Cadmium | Arsenic |
|---|---|---|---|
| 2 mg/kg | 0.1 mg/kg | 0.2 mg/kg | 1 mg/kg |
Summary of dietary exposure to PEFA (E 475) from its use as a food additive in the non‐brand‐loyal refined exposure scenarios, in 6 population groups (minimum–maximum across the dietary surveys in mg/kg bw per day) (EFSA ANS Panel, 2017a)
| Infants | Toddlers | Children | Adolescents | Adults | The elderly | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (12 weeks–11 months) | (12–35 months) | (3–9 years) | (10–17 years) | (18–64 years) | (≥ 65 years) | |||||||
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | |
|
| ||||||||||||
|
| ||||||||||||
|
| 0 | 0.9 | 0.1 | 2.5 | 0.1 |
| 0.1 | 1.3 | 0.1 | 0.9 | 0.1 | 0.9 |
|
| 0 | 3.9 | 0.5 | 6.2 | 0.4 |
| 0.3 | 3.4 | 0.4 | 2.7 | 0.4 | 2.4 |
bw: body weigh.
Reference points/health‐based guidance values for impurities and constituents potentially present in E 475
| Impurity/constituent/HBGV/RP (ug/kg bw) | Basis/Reference |
|---|---|
| Lead (Pb)/0.5 (BMDL01) |
The reference point is based on a study demonstrating perturbation of intellectual development in children with the critical response size of 1 point reduction in IQ. The EFSA CONTAM Panel mentioned that a 1 point reduction in IQ is related to a 4.5% increase in the risk of failure to graduate from high school and that a 1 point reduction in IQ in children can be associated with a decrease of later productivity of about 2%. A risk cannot be excluded if the exposure exceeds the BMDL01 (MOE lower than 1). EFSA CONTAM Panel ( |
| Mercury (Hg)/4 (TWI) |
The HBGV was set using kidney weight changes in male rats as the pivotal effect. Based on the BMDL10 of 0.06 mg/kg bw per day, expressed as mercury, and an uncertainty factor of 100 to account for inter and intra species differences, with conversion to a weekly basis and rounding to one significant figure, a TWI for inorganic mercury of 4 μg/kg bw per week, expressed as mercury was established. EFSA CONTAM Panel ( |
| Cadmium (Cd)/2.5 (TWI) |
The derivation of the reference point is based on a meta‐analysis to evaluate the dose‐response relationship between selected urinary cadmium and urinary beta‐2‐microglobulin as the biomarker of tubular damage recognised as the most useful biomarker in relation to tubular effects. A group‐based BMDL5 of 4 μg Cd/g creatinine for humans was derived. A chemical specific adjustment factor of 3.9 was applied to account for human variability in urinary cadmium within each dose‐subgroup in the analysis resulting in a reference point of 1.0 μg Cd per g creatinine. In order to remain below 1 μg Cd/g creatinine in urine in 95% of the population by age 50, the average daily dietary cadmium intake should not exceed 0.36 μg Cd/kg bw, corresponding to a weekly dietary intake of 2.5 μg Cd/kg bw. EFSA CONTAM Panel ( |
| Arsenic (As)/0.3–8 (BMDL01) |
The reference point is based on a range of benchmark dose lower confidence limit (BMDL01) values between 0.3 and 8 µg/kg bw per day identified for cancers of the lung, skin and bladder, as well as skin lesions. In general, the MOE should be at least 10,000 if the reference point is based on carcinogenicity in animal studies. However, as the BMDL for As is derived from human studies, an interspecies extrapolation factor (i.e. 10) is not needed. EFSA CONTAM Panel, |
| 3‐MCPD and 3‐MCPD fatty acid esters/2 (TDI) |
The HBGV is based on increased incidence of kidney tubular hyperplasia. BMD analysis using model averaging resulted in a BMDL10 of 0.20 mg/kg bw per day in male rats, which was selected as the reference point for renal effects. This reference point was considered to derive a group TDI of 2 μg/kg bw per day for 3‐MCPD and 3‐MCPD fatty acid esters and was considered protective also for effects on male fertility. EFSA CONTAM Panel, |
| Glycidyl‐esters (GEs)/10,200 (T25) |
Based on the EFSA Guidance on substances that are genotoxic and carcinogenic, T25 values were calculated for the incidence of tumors observed in rats and mice following long‐term exposure to glycidol. A T25 of 10.2 mg/kg bw per day for peritoneal mesothelioma in male rats was used as the reference point. A MoE of 25,000 or higher is considered of low health concern. EFSA CONTAM Panel, |
| Erucic acid/7,000 (TDI) |
The heart is the principal target organ for toxic effects after exposure to erucic acid. Myocardial lipidosis was identified by EFSA as the critical effect for chronic exposure to erucic acid. This effect is reversible and transient during prolonged exposure. A tolerable daily intake (TDI) of 7000 µg/kg bw per day for erucic acid was established, based on a no observed adverse effect level of 0.7 g/kg bw per day for lipidosis in young rats and newborn piglets. EFSA CONTAM Panel, |
HBGV: health‐based guidance value; RP: reference point; BMDL01: benchmark dose (lower confidence limit); bw: body weight; TWI: Tolerable Weekly Intake; TDI: Tolerable Daily Intake; T25: the chronic dose rate in mg/kg bw per day, which will give 25% of the animal tumours at a specific tissue site, after specific correction for the spontaneous incidence within the standard life time of that species; MOE: margin of exposure; 3‐MCPD: 3‐monochloropropanediol.
Risk assessment for toxic elements
| Exposure to E 475 (mg/kg bw per day) | Based on the current limits for toxic element in the EU specifications for E 475 (Commission Regulation (EU) No 231/2012) | |||
|---|---|---|---|---|
| MOE for Pb at 2 mg/kg | % of the TWI for Hg at 1 mg/kg | % of the TWI for Cd at 1 mg/kg | MOE for As at 3 mg/kg | |
| 2.6(
| 96 | 0.46 | 0.73 | 38–1,026 |
| 6.4(
| 39 | 1.1 | 1.8 | 16–417 |
|
| ||||
|
|
|
|
|
|
| 2.6(
| 96 | 0.05 | 0.15 | 115–3,077 |
| 6.4(
| 39 | 0.11 | 0.36 | 47–1,250 |
bw: body weight; MOE: margin of exposure; TWI: Tolerable Weekly Intake.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario ‐ children ‐ mean (Table 3)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario ‐ children ‐ 95th percentile (Table 3)).
Risk assessment for GEs (expressed as glycidol) based on the lowest technologically achievable level (5 mg/kg) in E 475 proposed by the IBO (Documentation provided to EFSA n. 1)
| Exposure to E 475 (mg/kg bw per day) | MOE for GEs (expressed as glycidol) at 5 mg/kg |
|---|---|
| 2.6(
| 784,615 |
| 6.4(
| 318,750 |
GE: glycidyl esters; bw: body weight; MOE: margin of exposure.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – mean (Table 3)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – 95th percentile (Table 3)).
Risk assessment for the sum of 3‐MCPD and 3‐MCPD fatty acid esters (expressed as 3‐MCPD) based on the maximum limit (2.5 mg/kg) in E 475 proposed by the IBO (Documentation provided to EFSA n. 1)
| Exposure to E 475 (mg/kg bw per day) | % of the TDI for the sum of 3‐MCPD and 3‐MCPD fatty acid esters (expressed as 3‐MCPD) at 2.5 mg/kg |
|---|---|
| 2.6(
| 0.33 |
| 6.4(
| 0.80 |
3‐MCPD: 3‐monochloropropanediol; bw: body weight; TDI: Tolerable Daily Intake.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – mean (Table 3)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – 95th percentile (Table 3)).
Risk assessment for erucic acid based on the maximum limit (20 g/kg) for vegetable oils and fats as set in Regulation (EC) No 1881/2006 proposed by the IBO to be used as maximum limit also in E 475 (Documentation provided to EFSA n. 1)
| Exposure to E 475 (mg/kg bw per day) | % of the TDI for Erucic acid at 20 g/kg |
|---|---|
| 2.6(
| 0.74 |
| 6.4(
| 1.8 |
bw: body weight; TDI: Tolerable Daily Intake.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – mean (Table 3)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – children – 95th percentile (Table 3)).
Proposal for a revised version of the existing EU Specifications for polyglycerol esters of fatty acids (E 475)
|
Commission Regulation (EU) No 231/2012 | Comment/justification for revision | |
|---|---|---|
|
| See Table | The Panel recommends a modification of the definition of E 475 indicating that polyglycerol used for the manufacturing of E 475 should be produced from glycerol meeting the specifications for E 422 in Commission Regulation (EU) No 231/2012. In this case, respective specification limits for epichlorohydrin, acrolein and butanetriol would not be needed for E 475. |
| Assay | See Table | Unchanged |
|
| See Table | Unchanged |
|
| See Table | Unchanged |
|
Infrared absorption spectrum Tests for glycerol and polyglycerols | See Table | Unchanged |
| Tests for fatty acids | See Table | Unchanged |
| Erucic acid | Not presently specified | Maximum limit to be included on the basis of the information provided and the considerations of the Panel* |
| Solubility | See Table | Unchanged |
|
| See Table | Unchanged |
| Sulfated ash | See Table | Unchanged |
| Acids other than fatty acids | See Table | Unchanged |
| Free fatty acids | See Table | Unchanged |
| Total glycerol and polyglycerol | See Table | Unchanged |
| Free glycerol and polyglycerol | See Table | Unchanged |
| Arsenic | Not more than 3 mg/kg | Maximum limit to be lowered on the basis of the information provided and on the considerations of the Panel |
| Lead | Not more than 2 mg/kg | Maximum limit to be lowered on the basis of the information provided and on the considerations of the Panel |
| Mercury | Not more than 1 mg/kg | Maximum limit to be lowered on the basis of the information provided and on the considerations of the Panel |
| Cadmium | Not more than 1 mg/kg | Maximum limit to be lowered on the basis of the information provided and on the considerations of the Panel |
| Sum of 3‐MCPD and 3‐MCPD fatty acid esters (expressed as 3‐MCPD) | Not presently specified | Maximum limit to be included on the basis of the information provided and the considerations of the Panel* |
| Glycidyl esters (expressed as glycidol) | Not presently specified | Maximum limit to be included on the basis of the information provided and the considerations of the Panel* |
As an alternative to introducing individual specifications for the impurities/constituents indicated by the *, the definition of E 475 could include a requirement that the fats and oils used in the manufacturing of E 475 comply with the respective EU legislation regarding suitability for human consumption.