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Fish feed can be produced from single cell protein made from residual streams from the forest industry
Photo: Jonas Forsberg


Fish feed often consists of fish or soy flour, which is not sustainable. RISE Processum and RISE PFI have developed a method for making fish feed from sustainable protein sources from the forest. The international project FISK connects actors so that the production of fish feed based on forest raw materials can become reality.

Logotypes finaciers FISK project

By 2050, the earth's population is estimated to grow to 9 billion people. To meet the global sustainability goals, new food sources must be developed. The salmon farming industry is one of the sectors that intends to increase its production capacity in the coming years, but growth both nationally and globally will not be sustainable if the farmed fish is fed with soy or fishmeal. New sustainable protein sources need to be developed and single cell proteins (SCP), produced from forest-based sugars, is one example.

The sustainable circle is closed since the raw material consists of residual products, such as branches, tops and other side streams that have not previously been used in a similar way.

Unique value chain from forest to table

The goal of the international project FISK is to drive development and connect actors from different industries. The project is a collaboration between researchers at RISE Processum in Sweden and RISE PFI in Norway, as well as actors from both the forestry and aquaculture industry, which creates a unique value chain from forest to table. In addition, the project contributes to forest industry companies, smaller companies or service companies in close connection with industry getting a new use and sale opportunity of their products and that the fish farming industry gets access to a new sustainable protein source. The purpose is to create a sufficient basis for an investment decision in the production of SCP.

Make use of side streams

The sidestreams used as raw material for the production of SCP in the project are both sour liquor from the biorefinery process and branches and tops, so-called GROT. Tests of SCP will also be performed on fish with respect to fish health, product quality, environment, new feed ingredients and production technology. FISK will also work with business development of fish feed that contains SCP and a business model will be developed to be able to take further steps in the commercialization work.

The project is a collaboration between Synergifabrikken, Domsjö Fabriker, Woodworks !, Sveaskog and Norraskog.


Project name





Region Västernorrland

RISE role in project


Project start



Total budget

938 441 €




Interreg Sverige-Norge, Region Västernorrland, Trøndelag Fylkeskommune


Project members

Supports the UN sustainability goals

2. Zero hunger
9. Industry, innovation and infrastructure
12. Responsible consumption and production
13. Climate action
14. Life below water
15. Life on land
Yvonne Söderström

Contact person

Yvonne Söderström

Senior Project Manager

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Contact person

Mihaela Tanase


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