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Scientific Opinion on Flavouring Group Evaluation 20, Revision 3(FGE.20Rev3): Benzyl alcohols, benzaldehydes, a related acetal, benzoic acids, and related esters from chemical groups 23 and 30

EFSA Journal 2011; 9(7):2176[136 pp.]. doi:10.2903/j.efsa.2011.2176
  EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) Panel Members Arturo Anadon, Mona-Lise Binderup, Wilfried Bursch, Laurence Castle, Riccardo Crebelli, Karl-Heinz Engel, Roland Franz, Nathalie Gontard, Thomas Haertle, Trine Husøy, Klaus-Dieter Jany, Catherine Leclercq, Jean Claude Lhuguenot, Wim Mennes, Maria Rosaria Milana, Karla Pfaff, Kettil Svensson, Fidel Toldra, Rosemary Waring, Detlef Wölfle Acknowledgment The Panel wishes to thank the members of the Working Groups on Flavourings for the preparation of this Opinion: Ulla Beckman Sundh, Vibe Beltoft, Wilfried Bursch, Angelo Carere, Riccardo Crebelli, Karl-Heinz Engel, Henrik Frandsen, Rainer Gürtler, Frances Hill, Trine Husøy, John Christian Larsen, Catherine Leclercq, Pia Lund, Wim Mennes, Gerard Mulder, Karin Nørby, Iona Pratt, Gerrit Speijers, Harriet Wallin and EFSA’s staff member Kim Rygaard Nielsen for the preparatory work on this scientific Opinion Contact cef-unit@efsa.europa.eu
Type: Opinion of the Scientific Committee/Scientific Panel On request from: European Commission Question number: EFSA-Q-2011-00299 Adopted: 19 May 2011 Published: 12 July 2011 Affiliation: European Food Safety Authority (EFSA), Parma, Italy
Abstract

The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider in this revision 3 of Flavouring Group Evaluation 20, the SCF Opinion on benzoic acid. Furthermore information on stereoisomeric composition for two substances [FL-no: 06.104 and 09.570] and new information to support the re-allocation of the structural class for the candidate substance piperonyl alcohol [FL-no: 02.205] has been submitted. The 41 flavouring substances in Flavouring Group Evaluation 20 were evaluated using the Procedure in Commission Regulation (EC) No 1565/2000. None of the substances were considered to have genotoxic potential. The substances were evaluated through a stepwise approach (the Procedure) that integrates information on structure-activity relationships, intake from current uses, toxicological threshold of concern, and available data on metabolism and toxicity. The Panel concluded that all the substances do not give rise to safety concerns at their levels of dietary intake, estimated on the basis of the MSDI approach.

© European Food Safety Authority,2011

Summary

The European Food Safety Authority (EFSA) asked the Scientific Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (the Panel) to provide scientific advice to the Commission on the implications for human health of chemically defined flavouring substances used in or on foodstuffs in the Member States. In particular, the Panel was requested to evaluate 41 flavouring substances in the Flavouring Group Evaluation 20, Revision 3 (FGE.20Rev3), using the Procedure as referred to in the Commission Regulation (EC) No 1565/2000. These 41 flavouring substances belong to chemical group 23 and 30, Annex I of the Commission Regulation (EC) No 1565/2000.

The present revision of FGE.20, FGE.20Rev3 includes the consideration of the SCF Opinion on benzoic acid (SCF, 2002c). Furthermore information on the stereoisomeric composition has become available for two substances [FL-no: 06.104 and 09.570] and new information to support the re-allocation of the structural class for the candidate substance piperonyl alcohol [FL-no: 02.205] has been submitted.

Four of the 41 flavouring substances can exist as optical isomers [FL-no: 06.104, 09.313, 09.317 and 09.852] and three of the 41 substances can exist as geometrical isomers [FL-no: 09.314, 09.560 and 09.570].

Thirty-seven candidate substances are classified into structural class I and four FL-no: 02.205, 05.066, 05.221 and 06.104 are classified into structural class II according to the decision tree approach presented by Cramer et al., 1978.

Twenty-two of the flavouring substances in the present group have been reported to occur naturally in a wide range of food items.

In its evaluation, the Panel as a default used the “Maximised Survey-derived Daily Intake” (MSDI) approach to estimate the per capita intakes of the flavouring substances in Europe. However, when the Panel examined the information provided by the European Flavour Industry on the use levels in various foods, it appeared obvious that the MSDI approach in a number of cases would grossly underestimate the intake by regular consumers of products flavoured at the use level reported by the industry, especially in those cases where the annual production values were reported to be small. In consequence, the Panel had reservations about the data on use and use levels provided and the intake estimates obtained by the MSDI approach.

In the absence of more precise information that would enable the Panel to make a more realistic estimate of the intakes of the flavouring substances, the Panel has decided also to perform an estimate of the daily intakes per person using a “modified Theoretical Added Maximum Daily Intake” (mTAMDI) approach based on the normal use levels reported by Industry. In those cases where the mTAMDI approach indicated that the intake of a flavouring substance might exceed its corresponding threshold of concern, the Panel decided not to carry out a formal safety assessment using the Procedure. In these cases the Panel requires more precise data on use and use levels.

According to the default MSDI approach, the 37 flavouring substances allocated to structural class I have intakes in Europe from 0.001 to 610 microgram/capita/day, which are below the threshold of concern value for structural class I (1800 microgram/person/day). The four substances in structural class II [FL-no: 02.205, 05.066, 05.221 and 06.104] have estimated intakes of 0.011, 1.2, 0.61 and 100 microgram/capita/day, respectively. These intakes are below the threshold values of 540 microgram/person/day for structural class II.

On the basis of the reported annual production in Europe (MSDI approach), the combined intake of the 37 of the candidate substances belonging to structural class I is approximately 1300 microgram/capita/day. This value is lower than the threshold of concern for structural class I substances. Based on reported production volumes, European per capita intakes (MSDI) could be estimated for 76 of the 77 supporting substances. The total combined intakes of the candidate and supporting substances are approximately 75000 and 7100 microgram/capita/day for structural class I and II, respectively, which exceed the thresholds of concern. However, the substances are expected to be efficiently metabolised and are not expected to saturate the metabolic pathways.

For the substances in this group the available genotoxicity data do not preclude the evaluation of the candidate substances using the Procedure.

It is anticipated that the candidate substances in FGE.20Rev3 would be metabolised to innocuous products.

It was noted that where toxicity data were available they were consistent with the conclusions in the present FGE using the Procedure.

It is considered that on the basis of the default MSDI approach the 41 candidate substances would not give rise to safety concerns at the estimated levels of intake arising from their use as flavouring substances.

When the estimated intakes were based on the mTAMDI approach they ranged from 1400 to 120000 microgram/person/day for the 37 flavouring substances from structural class I. The intakes were all above the threshold of concern for structural class I of 1800 microgram/person/day, except for five flavouring substances [FL-no: 05.129, 05.142, 05.153, 05.158 and 08.080]. The estimated intakes, based on the mTAMDI, of the four flavouring substances [FL-no: 02.205, 05.066, 05.221 and 06.104] assigned to structural class II were 3900, 1600, 7000 and 3900 microgram/person/day, respectively, which are above the threshold of concern for the structural class (540 microgram/person/day for structural class II). The five substances which have mTAMDI intake estimates below the threshold of concern for structural class I are also expected to be metabolised to innocuous products. Thus, on the basis of the mTAMDI, the estimated intakes for 36 of the 41 flavouring substances considered in this Opinion, exceed the relevant threshold for their structural class to which the flavouring substance has been assigned. Therefore, for these 36 substances more reliable exposure data are required. On the basis of such additional data, these flavouring substances should be re-evaluated using the Procedure. Subsequently, additional toxicological data might become necessary.

In order to determine whether the conclusion for the 41 candidate substances can be applied to the materials of commerce, it is necessary to consider the available specifications. Adequate specifications including complete purity criteria and identity for the materials of commerce have been provided for the 41 flavouring substances. For these 41 flavouring substances the Panel concluded that they would present no safety concern at their estimated levels of intake based of the MSDI approach.

Keywords

Flavourings, safety, benzyl alcohols, benzaldehydes, benzoic acids, esters, acetals, benzyl, benzoate, aliphatic, acyclic, alicyclic, FGE.20