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| algae:food:quality_safety [2026-09-06 11:15] – [Cyanotoxins] robert | algae:food:quality_safety [2026-09-13 17:30] (current) – Mostly rename EURlex robert |
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| === Cyanotoxins === | === Cyanotoxins === |
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| Cyanobacteria — commercially the most important group being //Limnospira// (Spirulina), //Aphanizomenon// and others — are capable of producing a range of toxins collectively known as cyanotoxins. These include __microcystins__ (hepatotoxic, produced by various genera including //Microcystis// and, under certain conditions, contaminating cyanobacteria co-occurring with cultivated species), __anatoxins__ (neurotoxic), __cylindrospermopsin__ (cytotoxic), and recently much debated __β-Methylamino-L-alanine (BMAA, neurotoxic). This is a hazard with __no close analogue__ in conventional terrestrial food crops, and is the most distinctive food safety issue specific to algae as a food category. | Cyanobacteria — commercially the most important group being //Limnospira// (Spirulina), //Aphanizomenon// and others — are capable of producing a range of toxins collectively known as cyanotoxins. These include __microcystins__ (hepatotoxic, produced by various genera including //Microcystis// and, under certain conditions, contaminating cyanobacteria co-occurring with cultivated species), __anatoxins__ (neurotoxic), __cylindrospermopsin__ (cytotoxic), and recently much debated __β-Methylamino-L-alanine__ (BMAA, neurotoxic). This is a hazard with __no close analogue__ in conventional terrestrial food crops, and is the most distinctive food safety issue specific to algae as a food category. |
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| The risk arises in two main ways: | The risk arises in two main ways: |
| * __Misidentification or mislabelling__, where a product sold as a edible cyanobacterium (e.g. Spirulina/Limnospira) is in fact contaminated with or substituted by a different, toxin-producing species — a known issue with some wild-harvested or poorly controlled supply chains, particularly for products sourced outside the EU. | * __Misidentification or mislabelling__, where a product sold as a edible cyanobacterium (e.g. Spirulina/Limnospira) is in fact contaminated with or substituted by a different, toxin-producing species — a known issue with some wild-harvested or poorly controlled supply chains, particularly for products sourced outside the EU. |
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| There is currently __no harmonised EU maximum level__ specifically for cyanotoxins in food, although EFSA has published scientific opinions assessing the risk and the German Federal Institute for Risk Assessment (BfR) and French food safety agency (ANSES) have both issued guidance recommending maximum microcystin levels in Spirulina-based food supplements (commonly cited informal benchmarks are in the range of 1 µg microcystin-LR equivalent per gram of dry product, though this is not a binding EU-wide limit). Producers and buyers commonly test for microcystins as part of batch quality control even in the absence of a binding EU limit, and several national authorities have taken enforcement action against products found to contain elevated cyanotoxin levels. This is an area of EU law still under active development; see [[algae:cases_precedents|Regulatory Cases and Precedents]] for documented cases. | There is currently __no harmonised EU maximum level__ specifically for cyanotoxins in food, although EFSA has published scientific opinions assessing the risk and defining the tolerable daily intakes (TDI) for many of them in a comprehensive scientific report commissioned by EFSA delivered in 2016 [[https://anses.hal.science/anses-01348179/document|Testai et al, 2016]]. Based on this report German Federal Institute for Risk Assessment (BfR) and French food safety agency (ANSES) have both issued guidance recommending maximum microcystin levels in Spirulina-based food supplements (commonly cited informal benchmarks are in the range of 1 µg microcystin-LR equivalent per gram of dry product, though this is not a binding EU-wide limit). Producers and buyers commonly test for microcystins as part of batch quality control even in the absence of a binding EU limit, and several national authorities have taken enforcement action against products found to contain elevated cyanotoxin levels. This is an area of EU law still under active development; see [[algae:cases_precedents|Regulatory Cases and Precedents]] for documented cases. |
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| === Iodine === | === Iodine === |
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| Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food, OJ L 119 5.5.2023, p. 103 [[ https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02023R0915-20251008|EURlex]] repealed | Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food, OJ L 119 5.5.2023, p. 103 [[ https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02023R0915-20251008|EURlex]] repealed |
| Regulation (EC) No 1881/2006 of 19 December 2006 on the same topic, OJ L 364, 20.12.2006, p. 5. [[https://eur-lex.europa.eu/legal-content/EN/AUTO/?uri=CELEX:02006R1881-20230326&qid=1781829956180|EUR-Lex]]. This regulation changes frequently (on average, more than twice a year). | Regulation (EC) No 1881/2006 of 19 December 2006 on the same topic, OJ L 364, 20.12.2006, p. 5. [[https://eur-lex.europa.eu/legal-content/EN/AUTO/?uri=CELEX%3A02006R1881-20230326&qid=1781829956180|EURlex]]. This regulation changes frequently (on average, more than twice a year). |
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| __Relevance to algae:__ This is the central regulatory framework that sets binding maximum levels for contaminants in food, and it has been progressively amended to add algae-specific entries. Key points: | __Relevance to algae:__ This is the central regulatory framework that sets binding maximum levels for contaminants in food, and it has been progressively amended to add algae-specific entries. Key points: |
| === Microbiological Criteria === | === Microbiological Criteria === |
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| Regulation (EC) No 2073/2005 of 15 November 2005 on microbiological criteria for foodstuffs, OJ L 338, 22.12.2005, p. 1. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02005R2073-20260701|EUR-Lex]] | Regulation (EC) No 2073/2005 of 15 November 2005 on microbiological criteria for foodstuffs, OJ L 338, 22.12.2005, p. 1. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02005R2073-20260701|EURlex]] |
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| __Relevance to algae:__ Sets process hygiene criteria and food safety criteria for pathogens including //Salmonella// and //Listeria monocytogenes//. No algae-specific microbiological criteria currently exist; the general criteria for the relevant food category (e.g. dried herbs and spices, ready-to-eat foods, food supplements) are applied by analogy and by national competent authorities' risk-based judgement. //Listeria monocytogenes// maximum limits introduced for all food categories are particularly relevant for moist or minimally processed algal products. | __Relevance to algae:__ Sets process hygiene criteria and food safety criteria for pathogens including //Salmonella// and //Listeria monocytogenes//. No algae-specific microbiological criteria currently exist; the general criteria for the relevant food category (e.g. dried herbs and spices, ready-to-eat foods, food supplements) are applied by analogy and by national competent authorities' risk-based judgement. //Listeria monocytogenes// maximum limits introduced for all food categories are particularly relevant for moist or minimally processed algal products. |
| === Community Procedures for Contaminants === | === Community Procedures for Contaminants === |
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| Regulation (EEC) No 315/93 of 8 February 1993 laying down Community procedures for contaminants in food, OJ L 37, 13.2.1993, p. 1. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A01993R0315-20090807|EUR-Lex]] | Regulation (EEC) No 315/93 of 8 February 1993 laying down Community procedures for contaminants in food, OJ L 37, 13.2.1993, p. 1. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A01993R0315-20090807|EURlex]] |
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| __Relevance to algae:__ Establishes the general principle that food containing a contaminant at a level unacceptable from the public health viewpoint, and especially at a toxicological level, must not be placed on the market, and provides the procedural basis for setting maximum levels such as those in Regulation (EC) No 2023/915 . | __Relevance to algae:__ Establishes the general principle that food containing a contaminant at a level unacceptable from the public health viewpoint, and especially at a toxicological level, must not be placed on the market, and provides the procedural basis for setting maximum levels such as those in Regulation (EC) No 2023/915 . |
| === Monitoring of Metals and Iodine in Seaweed === | === Monitoring of Metals and Iodine in Seaweed === |
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| Commission Recommendation (EU) 2018/464 of 19 March 2018 on the monitoring of metals and iodine in seaweed, halophytes and products based on seaweed, OJ L 78, 21.3.2018, p. 16. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32018H0464|EUR-Lex]] | Commission Recommendation (EU) 2018/464 of 19 March 2018 on the monitoring of metals and iodine in seaweed, halophytes and products based on seaweed, OJ L 78, 21.3.2018, p. 16. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32018H0464|EURlex]] |
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| __Relevance to algae:__ This is a __Recommendation__, not a binding Regulation (see [[algae:eu_legislation_general|General on EU Legislation]] for the distinction), but it is highly relevant in practice. It recommends that member states monitor levels of arsenic, cadmium, iodine, lead and mercury in seaweed, halophytes and seaweed-based products over a three-year period, with the explicit purpose of building the evidence base for future binding maximum levels. Producers should expect that the data gathered under this Recommendation will inform future amendments to Regulation (EC) No 2023/915, and that current voluntary monitoring practice is a strong indicator of where binding limits are likely to be introduced next. | __Relevance to algae:__ This is a __Recommendation__, not a binding Regulation (see [[algae:eu_legislation_general|General on EU Legislation]] for the distinction), but it is highly relevant in practice. It recommends that member states monitor levels of arsenic, cadmium, iodine, lead and mercury in seaweed, halophytes and seaweed-based products over a three-year period, with the explicit purpose of building the evidence base for future binding maximum levels. Producers should expect that the data gathered under this Recommendation will inform future amendments to Regulation (EC) No 2023/915, and that current voluntary monitoring practice is a strong indicator of where binding limits are likely to be introduced next. |
| === Radioactive Contamination === | === Radioactive Contamination === |
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| Council Regulation (Euratom) 2016/52 of 15 January 2016 laying down maximum permitted levels of radioactive contamination of food and feed following a nuclear accident or any other case of radiological emergency, OJ L 13, 20.1.2016, p. 2. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32016R0052|EUR-Lex]] | Council Regulation (Euratom) 2016/52 of 15 January 2016 laying down maximum permitted levels of radioactive contamination of food and feed following a nuclear accident or any other case of radiological emergency, OJ L 13, 20.1.2016, p. 2. [[https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32016R0052|EURlex]] |
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| __Relevance to algae:__ Establishes maximum permitted levels of radioactive contamination applicable in the event of a nuclear accident or radiological emergency. Not algae-specific, but relevant given that marine macroalgae can concentrate certain radionuclides from seawater, a consideration that has been practically relevant following historic events (e.g. post-Fukushima import controls on seaweed from affected regions, applied by trading partners including the EU). | __Relevance to algae:__ Establishes maximum permitted levels of radioactive contamination applicable in the event of a nuclear accident or radiological emergency. Not algae-specific, but relevant given that marine macroalgae can concentrate certain radionuclides from seawater, a consideration that has been practically relevant following historic events (e.g. post-Fukushima import controls on seaweed from affected regions, applied by trading partners including the EU). |
