Food waste to omega-3

Converting food waste into a sustainable source of omega-3

© Bob Brewer from unsplash


This project has developed an innovative solution aimed at converting food waste into a liquid growth medium suitable for fermentation, with versatile applications across numerous fermentation processes. Specifically, the project targets the fermentation of micro-algae rich in omega-3 oils, aiming to replace fish oil as feed in aquaculture. Currently, fish oil serves as the primary source of omega-3. However, due to its scarcity, Norway heavily relies on imports to meet its supply needs. By introducing new, sustainable sources of omega-3, the project seeks to alleviate dependence on imported fish oil. It will establish a collaboration with the local waste management company to collect waste materials and transform them into a valuable alternative to fish oil and sell it to livestock and fisheries.

Value chains

  • Food, water and nutrients

  • Organic material and biowaste

Expected impact

  • Reduction of CO2 emissions from 208 kg CO2 to 3.41 CO2 per ton of food waste compared to composting
  • Reduction in waste management costs
  • Reduction in the importation of fish oil as a source of omega-3

EU Circular Economy Classification

  • 1.b
    Development and deployment of process technologies that enable circular economy strategies
  • 1.e
    Substitution of virgin materials with secondary raw materials and by-products
  • 3.c
    Recovery and valorisation of biomass waste and residues as food, feed, nutrients, fertilisers, biobased materials or chemical feedstock