Overview of Seaweed Bioactives. Bioactive Compounds in Seaweeds: An Overview. Conventional Extraction Techniques for Seaweed Bioactives. Challenges and Prospects for Industrial Production of Seaweed Bioactives. Emerging Extraction Technologies. Subcritical Water Extraction of Seaweeds Bioactives. Super Critical Fluid Extraction of Seaweeds Bioactives. Pressurized Fluid Extraction of Bioactive Compounds from Seaweeds. Ultra-sonication Assisted Extraction of Seaweeds Bioactives. Microwave Assisted Extraction of Seaweeds Bioactives. Characterization Techniques. Novel HPLC Methods for Separation of Major Seaweed Bioactives. FTIR-ATR, NMR and FT-Raman Spectroscopy as a Tool for Seaweed Bioactive Identification. Dietary Fibre Extraction and Characterization from Edible Seaweeds. Spectroscopic and Optical Characterizations of Sodium Alginates and their Covalent and Ionic Derivatives. Recent Development in Seaweed Chlorophyll Characterization Using Mass Spectroscopy. Potential Applications. Potential Applications of Seaweed Polysaccharides. Potential Applications of Seaweed Polyphenols. Potential Applications of Seaweed Carotenoids. Potential Applications of Seaweed Proteins, Peptides and Amino Acids.