Evaluation of the Bioactive Potential of Four Arctic Brown Algae

Brown macroalgae are rich in bioactive compounds, rendering them highly suitable for applications in food, feed, and biomedicine. Through a detailed analysis of the main constituents (pigments, polyphenols, proteins and amino acids, fatty acids, carbohydrates, and minerals) in seaweeds sampled during the summer–autumn period, August was identified as the optimal month for collecting macroalgae. This study evaluated the impact of environmental conditions (air and water temperature and salinity) on the overall chemical composition. The findings contribute to expanding the plant resource base and promoting the valorization of the Arctic marine flora as a food ingredient or supplement.