Skip to main content
Log in

Ethylene oxide in foods: current approach to the risk assessment and practical considerations based on the European food business operator perspective

  • Review Article
  • Published:
European Food Research and Technology Aims and scope Submit manuscript

Abstract

Ethylene oxide (EtO) is a gas used in some countries, such as Canada, the USA and India as a fungicide, bactericide and insecticide in foods. In EU, it has been banned from such use in 1991. The lack of uniformity in worldwide regulations as to EtO led to multiple notifications about foods contaminated with this pesticide entering EU. Nevertheless, notifications appear typically too late for the European food business operators (FBOs) to take actions preventing financial losses. Many of the products are already placed on the market and eaten by the consumers by the time the notifications are issued. Product recalls in such cases are harmful to the image of FBOs and are very likely to trigger losses of customers. Therefore, the appropriate risk assessment is a very crucial matter. In this article, we analyse the notifications for EtO-contaminated foods published in European Rapid Alert System for Food and Feed between August 2020 and August 2021, describe the background of the problem, current risk assessment and actions taken by the authorities, review the toxicity of EtO and its fate in foods, describe the case of EtO-contaminated commodity and how the FBO was able to prove the safety of obtained products. Finally, we reflect on information which should be considered for the risk assessment purposes and recommend further research to address EtO fumigation problem. Gathered evidence suggests that multiple recalls and product losses could have been avoided if the safety of heat processed foods was confirmed by testing for EtO.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

  1. Food and Agriculture Organisation of United Nations, United Nations Environment Programme (2003) Decision guide document. Ethylene oxide. In: Interim secretariat for the Rotterdam convention on the prior informed consent procedure for certain hazardous chemicals and pesticides in international trade. http://www.pic.int/Portals/5/DGDs/DGD_Ethylene%20oxide_EN.pdf. Accessed 20 Jan 2021

  2. European Commission (2022) RASFF—food and feed safety alerts. In: Food safety. https://ec.europa.eu/food/safety/rasff-food-and-feed-safety-alerts_en. Accessed 1 Jan 2022

  3. European Commission (2020) COMMISSION IMPLEMENTING REGULATION (EU) 2020/1540 of 22 October 2020 amending Implementing Regulation (EU) 2019/1793 as regards sesamum seeds originating in India. In: EUR-Lex. https://eur-lex.europa.eu/legal-content/PL/TXT/?uri=CELEX:32020R1540. Accessed 9 Aug 2021

  4. European Commission (2021) REGULATION (EC) No 396/2005 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 February 2005 on maximum residue levels of pesticides in or on food and feed of plant and animal origin and amending Council Directive 91/414/EEC. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02005R0396-20210525. Accessed 6 Aug 2021

  5. Scudamore KA, Heuser SG (1971) Ethylene oxide and its persistent reaction products in wheat flour and other commodities: residues from fumigation or sterilisation, and effects of processing. Pestic Sci. https://doi.org/10.1002/ps.2780020207

    Article  Google Scholar 

  6. Bond J (2013) Manual of fumigation for insect control. http://www.fao.org/3/x5042e/x5042E00.htm. Accessed 20 Jan 2021

  7. United States Environmental Protection Agency (2014) Protection of Environment. In: Code of federal regulations. https://www.govinfo.gov/content/pkg/CFR-2014-title40-vol24/xml/CFR-2014-title40-vol24-part180.xml#seqnum180.151. Accessed 20 Jan 2021

  8. Government of Canada HC (2010) Maximum residue limits for pesticides—Health Canada. In: Consumer product safety. https://pr-rp.hc-sc.gc.ca/mrl-lrm/index-eng.php. Accessed 13 Aug 2021

  9. EU Reference Laboratories for Residues of Pesticides (2020) Analysis of ethylene oxide and its metabolite 2-chloroethanol by the QuOil or the QuEChERS method and GC-MS/MS. In: eurl-pesticides. https://www.eurl-pesticides.eu/library/docs/srm/EurlSrm_Observation_EO_V1.pdf. Accessed 20 Jan 2021

  10. Indian Oilseeds and Produce Export Promotion Council (2020) Procedure for control of contamination of Salmonella, residues of pesticided including ethylene oxide (EO) in sesame seeds for export to EU countries. http://www.iopepc.org/misc/2020/Procedure_1.pdf. Accessed 13 Aug 2021

  11. Laaninen T (2021) Recalls of sesame seed products due to pesticide residues—Think Tank. In: European parliament. https://www.europarl.europa.eu/thinktank/en/document.html?reference=EPRS_ATA%282021%29679077. Accessed 13 Aug 2021

  12. European Commission (2019) Commission Implementing Regulation (EU) 2019/1793 of 22 October 2019 on the temporary increase of official controls and emergency measures governing the entry into the Union of certain goods from certain third countries implementing Regulations (EU) 2017/625 and (EC) No 178/2002 of the European Parliament and of the Council and repealing Commission Regulations (EC) No 669/2009, (EU) No 884/2014, (EU) 2015/175, (EU) 2017/186 and (EU) 2018/1660. In: EUR-Lex. https://eur-lex.europa.eu/eli/reg_impl/2019/1793/oj. Accessed 13 Aug 2021

  13. Fisher C (2019) A review of regulations applied to spices, herbs, and flavorings—what has changed? J AOAC Int. https://doi.org/10.5740/jaoacint.18-0342

    Article  PubMed  Google Scholar 

  14. Government of India Directorate of Plant Protection (2021) List of pesticides which are banned, refused registration and restricted in use as on 01.07.2021. http://ppqs.gov.in/sites/default/files/list_of_pesticides_which_are_banned_refused_registration_and_restricted_in_use_01.07.2021.pdf. Accessed 13 Aug 2021

  15. India Organic (2014) NATIONAL PROGRAMME FOR ORGANIC PRODUCTION (NPOP), Seventh Edition, Agricultural & Processed Food Products Export development Authority. Department of Commerce Ministry of Commerce & Industry, New Dehli

  16. Government of India, Ministry of Commerce and Industry, Department of Commerce (2021) Annual report 2020-21 Department of Commerce https://commerce.gov.in/wp-content/uploads/2021/03/Commerce-English-2020-21.pdf. Accessed 17 Aug 2021

  17. Litelpo RG, Meek ME, Lewis M (2003) Concise International Chemical Assessment Document 54 Ethylene Oxide. World Health Organization. https://www.who.int/ipcs/publications/cicad/en/cicad54.pdf Accessed 12 Aug 2021

  18. Abeles FB, Dunn LJ (1985) Ethylene-enhanced ethylene oxidation in Vicia faba. J Plant Growth Regul. https://doi.org/10.1007/BF02266950

    Article  Google Scholar 

  19. Food Safety & Standards Authority of India (2018) Artificial ripening of fruits. Ethylene gas—a safe fruit ripener. Guidance Note No.04/2018. https://fssai.gov.in/upload/uploadfiles/files/Guidance_Note_Ver2_Artificial_Ripening_Fruits_03_01_2019_Revised_10_02_2020.pdf. Accessed 13 Aug 2021

  20. European Food Safety Authority (2012) Conclusion on the peer review of the pesticide risk assessment of the active substance ethylene. EFSA J. https://doi.org/10.2903/j.efsa.2012.2508

    Article  Google Scholar 

  21. Cherrie JW, Groman NM, Shafrir A, van Tongeren M, Mistry R, Warwick O, Corden C, Rushton L, Hutchings S (2011) Health, socio-economic and environmental aspects of possible amendments to the EU Directive on the protection of workers from the risks related to exposure to carcinogens and mutagens at work. Ethylene oxide. World Health Organization Collaborating Centre for Occupational Health. IOM Research Project: P937/99

  22. European Chemicals Agency (2020) Creosote approval with more stringent conditions proposed. https://echa.europa.eu/pl/-/creosote-approval-with-more-stringent-conditions-proposed. Accessed 17 Aug 2021

  23. European Commission (2021) Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006 (Text with EEA relevance)Text with EEA relevance. In: EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02008R1272-20210510. Accessed 10 Aug 2021

  24. Wageningen University and Research, National Institute for Public Health and the Environment. Ministry of Health, Welfare and Sport (2020) Risk assessment of ethylene oxide in sesame seeds. In: Front office food and product safety. https://www.rivm.nl/sites/default/files/2020-11/FO%20beoordeling%20ethyleenoxide%20in%20sesamzaad_final_20201025_anon.pdf. Accessed 20 Jan 2021

  25. Dunkelberg H (1982) Carcinogenicity of ethylene oxide and 1,2-propylene oxide upon intragastric administration to rats. Br J Cancer. https://doi.org/10.1038/bjc.1982.303

    Article  PubMed  PubMed Central  Google Scholar 

  26. European Food Safety Authority (2005) Opinion of the Scientific Committee on a request from EFSA related to a harmonised approach for risk assessment of substances which are both genotoxic and carcinogenic. EFSA J. https://doi.org/10.2903/j.efsa.2005.282

    Article  Google Scholar 

  27. Pfeiffer EH, Dunkelberg H (1980) Mutagenicity of ethylene oxide and propylene oxide and of the glycols and halohydrins formed from them during the fumigation of foodstuffs. Food Cosmet Toxicol. https://doi.org/10.1016/0015-6264(80)90062-0

    Article  PubMed  Google Scholar 

  28. World Health organisation (1971) 219. Ethylene oxide. In: WHO Pesticide Residues Series 1. http://www.inchem.org/documents/jmpr/jmpmono/v071pr15.htm. Accessed 20 Jan 2021

  29. Tateo F, Bononi M (2006) Determination of ethylene chlorohydrin as marker of spices fumigation with ethylene oxide. J Food Compos Anal. https://doi.org/10.1016/j.jfca.2004.12.003

    Article  Google Scholar 

  30. Bononi M, Quaglia G, Tateo F (2013) Identification of ethylene oxide in herbs, spices and other dried vegetables imported into Italy. Food Addit Contam Chem Anal Control Expo Risk Assess. https://doi.org/10.1080/19440049.2013.872808

    Article  Google Scholar 

  31. Wesley F, Rourke B, Darbishire O (1965) the formation of persistent toxic chlorohydrins in foodstuffs by fumigation with ethylene oxide and with propylene oxide. J Food Sci. https://doi.org/10.1111/j.1365-2621.1965.tb01883.x

    Article  Google Scholar 

  32. Chambers M (2021) ChemIDplus—ethylene oxide. In: NIH U. S. National Library of Medicine. https://chem.nlm.nih.gov/chemidplus/rn/75-21-8. Accessed 12 Aug 2021

  33. Chambers M (2021) ChemIDplus—2-Chloroethanol. In: NIH U. S. National Library of Medicine. https://chem.nlm.nih.gov/chemidplus/rn/107-07-3. Accessed 12 Aug 2021

  34. German Federal Institute for Risk Assessment (2021) Health risk assessment of ethylene oxide residues in sesame seeds. BfR Opinion No 024/2021, 1–8. https://doi.org/10.17590/20210428-072544. Accessed 11 Aug 2021

  35. European Chemicals Agency 2-bromoethanol. In: Substance information—ECHA. https://echa.europa.eu/es/substance-information/-/substanceinfo/100.007.954. Accessed 20 Jan 2021

  36. Fisher Scientific (1998) Material saftey datasheet 2-bromoethanol. In: Fisher Scientific. https://fscimage.fishersci.com/msds/96070.htm. Accessed 12 Aug 2021

  37. Dunkelberg H (1983) Carcinogenic activity of ethylene oxide and its reaction products 2-chlorethanol, 2-bromoethanol, ethylene glycol and diethylene glycol. II. Testing of 2-chlorethanol and 2-bromoethanol for carcinogenic activity. Zentralbl Bakteriol Mikrobiol Hyg B 177:269–281

    CAS  PubMed  Google Scholar 

  38. Baso-Cejas E, Brito G, Díaz C, Peña-Méndez EM (2007) Determination of inorganic bromide content in several vegetable foods. Bull Environ Contam Toxicol. https://doi.org/10.1007/s00128-007-9212-9

    Article  PubMed  Google Scholar 

  39. McCance R, Widdowson E (2015) Composition of foods integrated dataset (CoFID). In: GOV.UK. https://www.gov.uk/government/publications/composition-of-foods-integrated-dataset-cofid. Accessed 20 Jan 2021

  40. Ministry of Health (1999) To establish maximum residue limits (MRLs) for specified agricultural compounds in food. In: Proposed amendment to the New Zealand (Maximum Residue Limits of Agricultural Compounds) Mandatory Food Standard 1999. https://www.moh.govt.nz/notebook/nbbooks.nsf/0/85C135167472905FCC2573B400662703/$file/MRLs-for-ag-compunds-food.pdf. Accessed 20 Jan 2021

  41. Centralny Instytut Ochrony Pracy- Państwowy Instytut Badawczy Glikol etylenowy. In: Baza niebezpiecznych substancji chemicznych. https://www.ciop.pl/CIOPPortalWAR/appmanager/ciop/pl?_nfpb=true&_pageLabel=P27600224401410431343241&id_czynn_chem=269. Accessed 21 Jan 2021

  42. Chambers M (2021) ChemIDplus - Ethylene glycol. In: NIH U. S. National Library of Medicine. https://chem.nlm.nih.gov/chemidplus/rn/107-21-1. Accessed 12 Aug 2021

  43. Mortensen A, Aguilar F, Crebelli R, Domenico AD, Dusemund B, Frutos MJ, Galtier P, Gundert-Remy U, Lambré C, Leblanc JC, Lindtner O, Moldeus P, Mosesso P, Parent-Massin D, Oskarsson A, Stankovic I, Waalkens-Berendsen I, Woutersen RA, Wright M, Younes M, Rincon AM, Tard A, Gott D (2017) Safety of the proposed amendment of the specifications for the food additive polyvinyl alcohol-polyethylene glycol-graft-co-polymer (E 1209). EFSA J. https://doi.org/10.2903/j.efsa.2017.4865

    Article  PubMed  PubMed Central  Google Scholar 

  44. European Commission (2008) Regulation (EC) No 1333/2008 of the European Parliament and of the Council of 16 December 2008 on food additives (Text with EEA relevance)Text with EEA relevance. In: EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02008R1333-20201223. Accessed 12 Aug 2021

  45. European Commission (2012) Commission Regulation (EU) No 231/2012 of 9 March 2012 laying down specifications for food additives listed in Annexes II and III to Regulation (EC) No 1333/2008 of the European Parliament and of the Council (Text with EEA relevance) Text with EEA relevance. In: EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02012R0231-20210803. Accessed 12 Aug 2021

  46. Jukes D (2020) CONTAMINANTS—FSA Letter: action required related to non-approved ethylene oxide in sesame seeds and products containing sesame seeds. In: Food Law News—UK—2020. https://www.reading.ac.uk/foodlaw/news/20149.htm. Accessed 18 Aug 202

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Agnieszka Dudkiewicz.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Compliance with ethics requirements

This research did not include any human or animal participants. No ethical aproval was required.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dudkiewicz, A., Dutta, P. & Kołożyn-Krajewska, D. Ethylene oxide in foods: current approach to the risk assessment and practical considerations based on the European food business operator perspective. Eur Food Res Technol 248, 1951–1958 (2022). https://doi.org/10.1007/s00217-022-04018-7

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00217-022-04018-7

Keywords

Navigation