Seaweeds are a rich source of number of metabolites such as polyphenols, polysaccharides, fatty acids, proteins, peptides, which can be used as functional ingredients in many industrial applications such as functional food, nutraceuticals, pharmaceuticals and cosmeceuticals. While chromatographic and spectroscopic techniques have made bioactives analysis easier than before, their successful analysis depends on extraction techniques used. The book covers various emerging technologies for the extraction and characterization of bioactive compounds from seaweeds. The book provides in-depth information about the technique, its benefits and disadvantages, and potential industrial applications.