01 Sep 2017 --- Lycored’s naturally sourced colors can extend the shelf-life of surimi seafood products by as much as three months, new research shows. Surimi, a white Asian fish paste, is the basis of a range of seafood products, such as crabsticks. Many use orange, red or pink colors in their coating but the use of some commonly used colorants presents challenges. Paprika can deliver an off taste and carmine migrates very visibly.