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Recent Advances on Seaweed-Derived Pigments for FoodApplication and Current Legal Framework.

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  • 1REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal.

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Seaweed pigments like chlorophylls, carotenoids, and phycobiliproteins offer natural food coloring and health benefits. Overcoming technical and regulatory challenges is key for their wider adoption in the food industry.

Keywords:
carotenoidschlorophyllsfood industrylegislationphycobiliproteinsseaweed-derived pigments

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Area of Science:

  • Marine biotechnology
  • Food science
  • Natural product chemistry

Background:

  • Growing consumer preference for natural food ingredients drives interest in seaweed pigments.
  • Seaweed pigments (chlorophylls, carotenoids, phycobiliproteins) present alternatives to synthetic food colorants.
  • These natural compounds possess valuable bioactive properties, including antioxidant and anti-inflammatory effects.

Purpose of the Study:

  • To review the potential of seaweed-derived pigments for the food industry.
  • To explore advancements in sustainable extraction, purification, and stabilization techniques.
  • To analyze the regulatory landscape for seaweed pigments in the EU and US.

Main Methods:

  • Literature review of scientific publications and regulatory documents.
  • Analysis of sustainable aquaculture, extraction, purification, and stabilization methods.
  • Comparative assessment of regulatory frameworks in the European Union and United States.

Main Results:

  • Seaweed pigments provide diverse colors and possess significant health benefits.
  • Innovative techniques like green extraction and microencapsulation improve pigment yield and stability.
  • Regulatory approval processes differ between the EU and US, posing commercialization challenges.

Conclusions:

  • Seaweed pigments hold substantial promise for the food sector due to their color and bioactivity.
  • Technical, economic, and regulatory hurdles currently limit large-scale industrial application.
  • Optimized bioprocesses and rigorous safety evaluations are crucial for successful commercialization.