ConclusionThe performance of seaweed powder (soluble and insoluble DFs) as compared with its sulphated polysaccharide (sol- uble DF) was evaluated in the present study on the quality parameters of fish fingers during frozen storage. The results revealed that incorporation of sulphated polysaccharide as an isolated component can be comparable with using whole algae in giving functional attributes (such as retarding lipid oxidation) to food products. However, thanks to its solubility, USP had a more positive impact on the product’s texture preservation during storage. Overall, this work indicates the possibility of using both seaweed powder and SP utilization in the fish finger formula without any adverse effects, though dose dependency should be regarded for sensorial acceptance.