Overview
EN 18204:2026 is a European standard developed by CEN (European Committee for Standardization) that focuses on the determination of phycocyanin content in species of Arthrospira, commonly known as Spirulina. This standard provides laboratories with validated methods for the extraction and accurate quantification of the phycobiliproteins, specifically C-phycocyanin (C-PC) and allophycocyanin (APC), in dry Spirulina samples. Applying these procedures increases reliability and comparability for research, commercial, regulatory, and quality assessment activities within the algae industry.
The standard is essential for ensuring proper analysis and reporting of phycocyanin concentrations in Spirulina products, supporting safe commercialization and consumer confidence, and enabling compliance with European directives and regulatory frameworks regarding biobased products.
Key Topics
- Extraction Procedures: Clear protocols for extracting C-PC and APC from dry Spirulina using saline phosphate buffers under controlled light and temperature conditions.
- Sample Handling: Guidance on best practices for preparing and storing samples, including the use of dry biomass and requirements for homogeneity.
- Spectrophotometric Determination: Details on the measurement of C-PC and APC concentration using UV-VIS spectrophotometry at specified wavelengths, ensuring accurate pigment quantification.
- Purity Assessment: Defined criteria for assessing the purity of extracted phycobiliproteins, including thresholds for food, reagent, and analytical grade product.
- Calculation Methods: Formulas for quantifying phycocyanin and allophycocyanin content as a percentage of dry biomass weight.
- Quality Assurance: Requirements for interlaboratory reproducibility to ensure robust, repeatable results across different analytical labs.
- Reporting Requirements: Standardized guidelines for documentation and reporting of test results, increasing transparency and data consistency.
Applications
- Nutritional and Functional Food Industry: Supports accurate labeling and quality control for Spirulina-based food and dietary supplement products, ensuring precise measurement of health-promoting pigments like phycocyanin.
- Feed and Aquaculture: Enables reliable quantification of active compounds in algae-based feed ingredients, supporting animal nutrition products.
- Pharmaceuticals and Cosmetics: Assures high-purity pigment extracts for use in health, wellness, and cosmetic formulations, where pigment integrity impacts product efficacy.
- Biotechnology and Research: Facilitates reproducible methods for academic and industrial research into the properties, applications, and commercial extraction of phycobiliproteins.
- Regulatory Compliance: Equips manufacturers and testing laboratories to meet EU regulations and biobased product policies with standardized analytical procedures.
- Supply Chain and Trade: Promotes confidence and comparability in the international trade of Spirulina and algae-derived products by unifying testing methods.
Related Standards
- EN 17399: Algae and algae products - Vocabulary
- Provides standardized terminology for the algae sector.
- EN 17605: Algae and algae products - Methods of sampling and analysis - Sample treatment
- Details best practices for sample collection and pre-analytical processing in algae studies.
Other relevant references may include European directives on sustainable bioproducts and additional methodological standards developed by CEN/TC 454 “Algae and algae products”.
Keywords: EN 18204:2026, phycocyanin determination, Spirulina, Arthrospira, algae products, phycobiliproteins, C-phycocyanin, allophycocyanin, algae analysis, algae standard, CEN, laboratory testing, quality control, food supplements, blue-green algae, pigment extraction, biobased products.