The pressure on global food systems is likely to increase in the coming years. Population growth, increasing urbanization and changes in eating habits are trends that set the stage for a growing demand for food. The UN's Food and Agriculture Organization (FAO) has estimated that projected demand requires a 70% increase in global food production by 2050. A sustainable blue economy is part of the EU's strategy to increase the use of marine resources to produce new foods and food supplements. Increased use of marine resources for alternative food production will help alleviate pressure on land resources for agriculture, in addition to mitigating climate change and ensuring food security and sustainability. The paper presents the objectives, research methodology and part of the results of the ERANET SuMaFood project (www.sumafood.eu). SuMaFood is an international partnership between 3 industrial partners, 3 universities and R&D research institutes from Greece, Norway, Romania and Spain, coordinated by SINTEF Energy Research (Norway). The objective of the project is to design new and innovative methods of processing and preservation, including improved solutions for fish residue separation and fractionation, low temperature stabilization, hydrolysis and drying. In addition, macroalgae (seaweed Saccharina Latissima) raw materials were dried, analyzed and tested as a food ingredient. The ingredients, (seaweed Saccharina Latissima and hydrolyzed cod fish protein) were supplied in the form of a powder with reduced moisture and were included separately in various baking recipes, with a replacement degrees of wheat flour of 0%, 1.5%, 3 %, 4.5%, 6%. Chemical potential, rheological and enzymatic properties, as well as consumer acceptability were evaluated. Textural analyzes were performed for 96 hours of storage. The results showed great nutritional potential, given the high value of fish proteins as well as the high fiber content, Ca, Fe, P, K, Mg, I, in the case of the algae used. The rheological and enzymatic analyzes were carried out with the Mixolab equipment and the Chopin + method, according to the ICC173 standard and showed very good baking characteristics in the case of additions of a maximum of 4.5% of hydrolyzed proteins. In the case of the addition of algae, the breadability characteristics are maintained at acceptable values for a degree of substitution of a maximum of 3%. The sensory evaluation of the bakery products obtained showed a pronounced after-taste in the case of fish protein, which limited the addition to a value of 1.5%. In the case of algae, consumers penalized the sour, salty and bitter taste of bakery products with the addition of 4.5% and 6%. Textural analyzes of bread samples showed an increase in firmness and gumminess over time and with increasing algae addition; in the case of fish protein, an increase in firmness and a decrease in cohesiveness were observed over time and with increasing protein addition. Experimental research on bakery samples offers exciting possibilities for the use of marine resources, aiming at a safe and secure future food system. [ABSTRACT FROM AUTHOR]