Making use of the whole fish (IMAGE) Chalmers University of Technology Caption After filleting, there are still lots of valuable and nutritious parts of the fish left, such as the backbones, heads and fins. By dipping these side streams into a specially developed solution, containing ingredients such as rosemary extract and citric acid, their shelf life can be extended significantly, giving a useful window of time to process them further. Haizhou Wu is one of the researchers in the project. Credit Pixabay, Haizhou Wu/Chalmers, Xueqing Lei, Freepik Usage Restrictions For editorial use only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.