| Marine seaweeds, also known as marine macroalgae, are a diverse group of photosynthetic organisms that inhabit different marine environments, such as seas and oceans. Green algae are one of the promising marine seaweeds commonly found in coastal regions of Egypt and possess a wide range of bioactive compounds, including sulfated polysaccharides, phenolic compounds, pigments, and other secondary metabolites. The present study involved the collection of Ulva lactuca from the Alexandria coastline in Egypt, followed by the extraction of these samples with various solvents, including hexane, ethanol, and water. The total phenolic contents, total flavonoids, and total carbohydrates were estimated. The FTIR analysis of ulvan, purified from the aqueous extract, confirmed the presence of sulfated groups attached to the carbohydrate backbone of ulvan. We evaluated the antioxidant, anticancer, and antimicrobial activities of Ulvan and other phenolic compounds. Overall, this study sheds light on the diverse bioactive compounds present in marine seaweeds, specifically Ulva lactuca, and contributes to our understanding of the potential applications of these compounds in biomedical areas. |
