| Literature DB >> 35515334 |
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, Alexandra Tard, Peter Fürst.
Abstract
Polyglycerol polyricinoleate (PGPR, E 476) 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 476. Additionally, this opinion deals with the assessment of the proposed extension of use for E 476 in edible ices and a revision of the maximum permitted level in emulsified sauces. The Panel concluded that the proposed extension of use, if authorised, would not give rise to a safety concern. Additionally, the Panel performed a risk assessment of undesirable impurities potentially present in E 476. The Panel concluded that the maximum limits in the EU specifications for the four toxic elements (arsenic, lead, mercury, cadmium) should be lowered based on actual levels in the commercial food additive E 476. The Panel also concluded that maximum limits for glycidyl esters and 3-monochloropropanediol should be included in the EU specifications for E 476. Alternatively, the Panel recommends an amendment of the definition of E 476 to include a requirement that the fats and oils used in the manufacturing of E 476 comply with the respective EU legislation regarding suitability for human consumption. Further, the Panel recommends a modification of the definition of E 476 indicating that polyglycerol used for the manufacturing of E 476 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 476. Finally, the Panel concluded that the proposed method based on the determination of ricinoleic acid is suitable for the determination of E 476 content in food.Entities:
Keywords: CAS Registry Number 68936‐89‐0; E 476; PGPR; emulsifier; food additive; polyglycerol polyricinoleate
Year: 2022 PMID: 35515334 PMCID: PMC9066526 DOI: 10.2903/j.efsa.2022.7294
Source DB: PubMed Journal: EFSA J ISSN: 1831-4732
Figure 1Structural formula of polyglycerol polyricinoleate, adapted from Bastida‐Rodriguez, (2013). (Copyright © 2013 Josefa Bastida‐Rodrıguez, Creative Commons Attribution License CC BY 3.0 as presented in the EFSA ANS Panel, 2017a)
Specifications for PGPR (E 476) according to Commission Regulation (EU) No 231/20121
| Commission Regulation No 231/2012 | |
|---|---|
|
|
Polyglycerol polyricinoleate is prepared by the esterification of polyglycerol with condensed castor oil fatty acids |
|
| Clear, highly viscous liquid |
|
| |
| Solubility |
Insoluble in water and in ethanol; soluble in ether, hydrocarbons and halogenated hydrocarbons |
| Test for glycerol | Passes test |
| Test for polyglycerol | Passes test |
| Test for ricinoleic acid | Passes test |
| Refractive index | [n]D 65 between 1.4630 and 1.4665 |
|
| |
| Polyglycerols | The polyglycerol moiety shall be composed of not less than 75% of di‐, tri‐ and tetraglycerols and shall contain not more than 10% of polyglycerols equal to or higher than heptaglycerol |
| Hydroxyl value | Not less than 80 and not more than 100 |
| Acid value | Not more than 6 |
| 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 |
Lowest technologically achievable levels for the toxic elements lead, mercury, cadmium and arsenic in commercial E 476 proposed by an interested business operator (Documentation provided to EFSA n. 1)
| Lead | Mercury | Cadmium | Arsenic |
|---|---|---|---|
| 0.5 mg/kg | 0.1 mg/kg | 0.2 mg/kg | 1 mg/kg |
MPLs of PGPR (E 476) in foods according to the Annex II to Regulation (EC) No 1333/2008
| Food category number | Food category name | Restrictions/exception | MPL (mg/L or mg/kg as appropriate) |
|---|---|---|---|
| 02.2.2 | Other fat and oil emulsions including spreads as defined by Council Regulation (EC) No 1234/2007 and liquid emulsions | Only spreadable fats as defined in Articles 75(1)(h) and 78(1)(f) and in Part VII and Appendix II of Annex VII to Regulation (EC) No 1308/2013(1), having a fat content of 41% or less and similar spreadable products with a fat content of less than 10% fat; liquid vegetable oil emulsions for sale to the final consumer, having a fat content of 70% or less | 4,000 |
| 05.1 | Cocoa and Chocolate products as covered by Directive 2000/36/EC | 5,000 | |
| 05.2 | Other confectionery including breath freshening microsweets | Only cocoa‐based confectionery | 5,000 |
| 05.4 | Decorations, coatings and fillings, except fruit‐based fillings covered by category 4.2.4 | Only cocoa‐based confectionery | 5,000 |
| 12.6 | Sauces | Only emulsified sauces | 4,000 |
MPL: maximum permitted level.
Population groups considered for the exposure estimates of PGPR (E 476)
| Population | Age range | Countries with food consumption surveys covering more than 1 day |
|---|---|---|
| Infants | From more than 12 weeks up to and including 11 months of age | Bulgaria, Cyprus, Denmark, Estonia, Finland, France, Germany, Italy, Latvia, Portugal, Slovenia |
| Toddlers | From 12 months up to and including 35 months of age | Belgium, Bulgaria, Cyprus, Denmark, Estonia, Finland, France, Germany, Hungary, Italy, Latvia, Netherlands, Portugal, Slovenia, Spain |
| Children | From 36 months up to and including 9 years of age | Austria, Belgium, Bulgaria, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Netherlands, Portugal, Spain, Sweden |
| Adolescents | From 10 years up to and including 17 years of age | Austria, Belgium, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Netherlands, Portugal, Romania, Slovenia, Spain, Sweden |
| Adults | From 18 years up to and including 64 years of age | Austria, Belgium, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Netherlands, Portugal, Romania, Slovenia, Spain, Sweden |
| The elderly | From 65 years of age and older | Austria, Belgium, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Netherlands, Portugal, Romania, Slovenia, Spain, Sweden |
The term ‘toddlers’ in the Comprehensive Database (EFSA, 2011) corresponds to ‘young children’ in Regulations (EC) No 1333/2008 and (EU) No 609/2013.
The terms ‘children’ and ‘the elderly’ correspond, respectively, to ‘other children’ and the merge of ‘elderly’ and ‘very elderly’ in Comprehensive Database (EFSA, 2011).
Summary of dietary exposure to E 476 from its use as a food additive in the regulatory maximum level exposure assessment scenario, and refined exposure assessment scenario in six population groups (minimum – maximum across the dietary surveys in mg/kg bw per day)
|
Infants (12 weeks–11 months) |
Toddlers (12–35 months) |
Children (3–9 years) |
Adolescents (10–17 years) |
Adults (18–64 years) |
The elderly (≥ 65 years) | |
|---|---|---|---|---|---|---|
|
| ||||||
| Mean | 0.01–0.7 | 0.5–7.7 | 1.6–6.4 | 0.9–3.5 | 0.3–2.0 | 0.2–2.0 |
| 95th percentile | 0–5.6 | 2.9–14.6 | 5.3–16.2 | 4.0–9.5 | 1.4–5.5 | 0.9–6.1 |
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| Mean | 0.01–0.6 | 0.5–3.7 | 0.8–4.0 | 0.8–2.3 | 0.2–1.7 | 0.1–1.8 |
| 95th percentile | 0–5.6 | 2.1–10.1 | 3.0–10.6 | 2.8–6.8 | 1.2–5.2 | 0.7–5.6 |
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| ||||||
| Mean | 0.01–0.16 | 0.2– | 0.2–3.0 | 0.2–1.7 | 0.1–1.4 | 0.04–1.6 |
| 95th percentile | 0–1.3 | 1.2– | 0.8–6.8 | 1.0–5.0 | 0.5–4.4 | 0.3–5.3 |
bw: body weight.
Summary of anticipated dietary exposure to E 476 from its use as a food additive in the regulatory maximum level exposure assessment scenario considering the proposed extension of use, in six population groups (minimum – maximum across the dietary surveys in mg/kg bw per day)
|
Infants (12 weeks–11 months) |
Toddlers (12–35 months) |
Children (3–9 years) |
Adolescents (10–17 years) |
Adults (18–64 years) |
The elderly (≥ 65 years) | |
|---|---|---|---|---|---|---|
|
| ||||||
| •Mean | 0.02–1.4 | 0.8–8.9 | 3.2– | 1.2–4.8 | 0.5–3.0 | 0.2–2.6 |
| •95th percentile | 0–5.6 | 4.8–21.8 | 12.8– | 5.4–12.4 | 2.7–9.9 | 1.1–7.8 |
bw: body weight.
Qualitative evaluation of influence of uncertainties on the dietary exposure estimate
| Sources of uncertainties | Direction(a) |
|---|---|
| Consumption data: different methodologies/representativeness/underreporting/misreporting/no portion size standard | +/– |
| Methodology used to estimate high percentiles (95th) long‐term (chronic) exposure based on data from food consumption surveys covering only a few days | + |
| Correspondence of reported use levels to the food items in the EFSA Comprehensive Database: uncertainties to which types of food the levels refer | +/– |
| Uncertainty in possible national differences in use levels of food categories | +/– |
|
Occurrence data: – use levels considered applicable to all foods within the entire food category, whereas the average percentage of food products in the EU labelled as containing E 476 was only 3.4% of all the food products in the subcategories in Mintel in which E 476 is listed |
+ |
| Food categories selected for the exposure assessment: inclusion of food categories with considering only approximately the restriction/exception (n = 1 MPL scenario/n = 1 refined scenarios out of 5 food categories) | + |
| Food categories included in the exposure assessment: no data for the food category of sauces (FC 12.6) which was considered in the refined exposure estimates using the MPL of 4,000 mg/kg | + |
| Foods which may contain the food additive according to Annex III to Regulation (EC) No 1333/2008 not taken into account | – |
|
Regulatory maximum level exposure assessment scenario: – exposure calculations based on the MPL according to Annex II to Regulation (EC) No 1333/2008 |
+ |
|
Refined exposure assessment scenarios: – exposure calculations based on the maximum or mean levels (reported use from industries) |
+/– |
Reference points/health‐based guidance values for impurities and constituents potentially present in E 476
|
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 ( |
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 476 (mg/kg bw per day) | Based on the current limits for toxic elements in the EU specifications for E 476 (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 | |
| 3.2 | 78 | 0.56 | 0.90 | 31–833 |
| 8.1 | 31 | 1.4 | 2.3 | 12–329 |
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| 3.2 | 312 | 0.06 | 0.18 | 94–2,500 |
| 8.1 | 123 | 0.14 | 0.45 | 37–988 |
bw: body weight; MOE: margin of exposure; TWI: Tolerable Weekly Intake.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – mean (Table 5)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – 95th percentile (Table 5)).
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 476 proposed by the IBO (Documentation provided to EFSA n. 1)
|
Exposure to E 476 (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 |
|---|---|
| 3.2 | 0.40 |
| 8.1 | 1 |
3‐MCPD: 3‐monochloropropane diol; bw: body weight; TDI: Tolerable Daily Intake.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – mean (Table 5)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – 95th percentile (Table 5)).
Risk assessment for GEs (expressed as glycidol) based on the lowest technologically achievable level (1 mg/kg) in E 476 proposed by the IBO (Documentation provided to EFSA n. 1)
|
Exposure to E 476 (mg/kg bw per day) | MOE for GEs (expressed as glycidol) at 1 mg/kg |
|---|---|
| 3.2 | 3,187,500 |
| 8.1 | 1,259,259 |
GE: glycidyl esters; bw: body weight; MOE: margin of exposure.
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – mean (Table 5)).
Highest exposure level among the different population groups (refined non‐brand‐loyal scenario – toddlers – 95th percentile (Table 5)).
Proposal for a revised version of the existing EU Specifications for polyglycerol polyricinoleate (E 476)
| Commission Regulation (EU) No 231/2012 | Comment/justification for revision | |
|---|---|---|
|
| See Table | The Panel recommends a modification of the definition of E 476 indicating that polyglycerol used for the manufacturing of E 476 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 476. |
|
| See Table | Unchanged |
|
| See Table | Unchanged |
| Solubility | See Table | Unchanged |
| Test for glycerol | See Table | Unchanged |
| Test for polyglycerol | See Table | Unchanged |
| Test for ricinoleic Acid | See Table | Unchanged |
| Refractive index | See Table | Unchanged |
|
| See Table | Unchanged |
| Polyglycerols | See Table | Unchanged |
| Hydroxyl value | See Table | Unchanged |
| Acid value | See Table | Unchanged |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 specification values for the impurities indicated by the *, the definition of E 476 could include a requirement that the fats and oils used in the manufacturing of E 476 comply with the respective EU legislation regarding suitability for human consumption.
Risk assessment for toxic elements considering the proposed extension of use
| Proposed extension of use | Based on the current limits for the toxic elements in the EU specifications for E 476 (Commission Regulation (EU) No 231/2012) | |||
|---|---|---|---|---|
| Potential exposure to E 476 (mg/kg bw per day) | 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 |
| 9.1 | 27 | 2 | 3 | 11–293 |
| 23.2 | 11 | 4 | 7 | 4–115 |
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| 9.1 | 110 | 0.16 | 0.51 | 33–879 |
| 23.2 | 43 | 0.41 | 1.3 | 13–345 |
bw: body weight; MOE: margin of exposure; TWI: Tolerable Weekly Intake.
Highest exposure level among the different population groups (regulatory maximum level scenario – children ‐ mean (Table 6)).
Highest exposure level among the different population groups (regulatory maximum level scenario – children – 95th percentile (Table 6)).
Risk assessment for GEs (expressed as glycidol) based on the lowest technologically achievable level (1 mg/kg) in E 476 proposed by the IBO (Documentation provided to EFSA n. 1) considering the proposed extension of use
| Proposed extension of use | |
|---|---|
|
Potential exposure to E 476 (mg/kg bw per day) | MOE for GEs (expressed as glycidol) at 1 mg/kg |
| 9.1 | 1,120,879 |
| 23.2 | 439,655 |
GE: glycidyl esters; bw: body weight; MOE: margin of exposure.
Highest exposure level among the different population groups (regulatory maximum level scenario – children – mean (Table 6)).
Highest exposure level among the different population groups (regulatory maximum level scenario – children – 95th percentile (Table 6)).
F.2 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 476 proposed by the IBO (Documentation provided to EFSA n. 1) considering the proposed extension of use
| Proposed extension of use | |
|---|---|
| Potential exposure to E 476 (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 |
| 9.1 | 1.1 |
| 23.2 | 2.9 |
3‐MCPD: 3‐monochloropropane diol; bw: body weight; TDI: Tolerable Daily Intake.
Highest exposure level among the different population groups (regulatory maximum level scenario ‐ children ‐ mean (Table 6)).
Highest exposure level among the different population groups (regulatory maximum level scenario – children – 95th percentile (Table 6)).