New technology in Sweden turns the whole fish into food
Sweden
Published Jun 29, 2022
Tridge summary
In the meat industry, it's common practice to turn the whole animal into food products. In the fish industry, over half of the weight of the fish ends up as side-streams which never reach our plates. This takes a toll on the environment and is out of step with Swedish food and fisheries strategies. Now, food researchers at Chalmers are introducing a new sorting technology that means we get five good cuts from fish and not just the filet. A herring processing plant on Sweden's west coast is already implementing the new method.
Original content
When the filet itself is removed from a fish, valuable side-streams remain, which can be turned into products such as nuggets, mince, protein isolates or omega-3-rich oils. Despite such great potential, these products leave the food chain to become animal feed or, worst case, get discarded. To exploit valuable nutrients and switch to more sustainable procedures, the way we process fish needs to change. All cuts are treated with care"With our new sorting method, the whole fish is treated with the same care as the filet. The focus is on preserving quality throughout the entire value chain. Instead of putting the various side-streams into a single bin to become by-products, they are handled separately, just like in the meat industry," says research leader Ingrid Undeland, Professor of Food Science at the Department of Biology and Biological Engineering at Chalmers. The research was conducted as part of an international project called Waseabi. The Chalmers researchers recently ...
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