Assessment of Antioxidant Capacity and Phytochemical Composition of Brown and Red Seaweeds Sampled off Red Sea Coast

Seaweeds are becoming a viable source of biologically active composites with hopeful application as nutraceuticals, functional food components, and medicinal agents. In the present study, antioxidant capacity biochemical compositions four seaweeds; Polycladia indica Turbinaria ornata (Phaeophyceae) Laurencia obtusa Sarconema scinaioides (Rhodophyceae), were estimated. The results indicated that T. showed maximum value total phenolic compound (TPC), flavonoid content, β-carotene, carbohydrate has percentage DPPH radical scavenging capacity, (TAC), reducing (TRC) (72.48%, 15.02%, 53.24% inhibition, respectively), while highest contents ascorbic acid, lipid, calcium, zinc observed in L. obtusa. P. protein contents, dietary fibers, sodium, potassium, magnesium, amino acids. Glutamic, aspartic, proline, methionine most frequent acids selected seaweeds. Brown seaweeds (T. indica) attained percent polyunsaturated (ω6 ω3) essential fatty content these seaweed species, well their properties, make them interesting candidates for nutritional, pharmacological, therapeutic applications.