AlgaEU
AlgaEurope 2026
4BlueTech
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Track #06
4BlueTech
From Spirulina tablets in the 1970s to precision-fermented algal proteins now entering supermarket shelves, the trajectory of microalgae in human food is defined by EU Novel Food regulation, consumer protein shifts, and advances in strain-specific flavour deodorisation.
The EU Novel Food Regulation requires pre-market safety assessment by EFSA before any microalgae not traditionally consumed in the EU as food can enter the market. Approval durations typically run 2–5 years. Key distinction: Arthrospira (Spirulina) and Chlorella are classified as "traditional" in some EU member states, bypassing the Novel Food route.
| Species | EU Novel Food status | Authorised application | Year |
|---|---|---|---|
| Arthrospira platensis | Traditional food | General food ingredient, dietary supplement | — |
| Chlorella vulgaris | Traditional food | General food ingredient, dietary supplement | — |
| Haematococcus pluvialis | NF Approved | Dietary supplement (astaxanthin ≤ 8 mg/day) | 2022 |
| Schizochytrium sp. | NF Approved | DHA-rich oil in food products (infant formula, bakery) | 2003 |
| Nannochloropsis gaditana | NF Approved | Protein ingredient in food supplements ≤ 3g/day | 2024 |
| Odontella aurita | Under review | Application for EPA-rich whole-cell food ingredient | 2023 → |
| Tetraselmis chui | Under review | Application for dried biomass in food supplements | 2022 → |
Source: EFSA Novel Food Catalogue v2024, Regulation (EU) 2015/2283 on Novel Foods.
Note: soy and pea isolates represent processed protein concentrates. Algae values are whole-biomass. When processed to protein isolate, Spirulina approaches 85%+ DW. Source: Becker (2007) Advances in Biochemical Engineering; Grönberg & Sterte (2021) Food Chemistry.
The primary barrier to algal food uptake is off-flavour: volatile compounds (DMS, hexanal, decadienal) cause "seaweed" or "fishy" notes. Research pathways: (1) fermentative deodorisation with Lactobacillus co-culture — 60–70% DMS reduction; (2) CO₂ supercritical extraction of lipophilic volatiles — removes up to 85% of fishy notes while retaining protein matrix; (3) strain selection programs at Roquette (France) using sensory GC-MS coupling to breed low-volatile Chlorella lines.
Unlike soy and pea proteins that have been reformulated for 50+ years, algal proteins lack established texturisation data. Current innovation: (1) extrusion texturisation of Spirulina at 20% inclusion into meat-analogue fibres (Wageningen 2023, Food Hydrocolloids 136:108314); (2) algal protein gelation at pH 7 for tofu-analogues — functional at Spirulina >12% DW; (3) encapsulation in resistant starch matrices for baked goods (Kern et al., 2022).
EU Consumer Acceptance — EFSA Survey Data (2022, n=6,542, 10 EU countries)
Principal barriers cited: unfamiliar flavour (68%), perceived safety concerns (44%), no clear labelling (38%). Communication strategy: normalise algal ingredients as "already in baby formula for 20 years" — significantly increases willingness-to-try in structured trials.