الفهرس 
Introduction and literature reviewOnly 14 pages are availabe for public view
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Abstract
algae are coastal primary producers and have impressive possibilities to survive in extreme environmental conditions, in particular to trigger oxidative stress, they produce a variety of useful compounds (Contreras-Porcia, , et al., 2012). Algae live in extreme conditions: fluctuating salinity, temperature, nutrients, and UV–vis irradiation. Long periods of desiccation cause overproduction of reactive oxygen species, which is neutralized by physiological and biological mechanisms: the production of secondary metabolites (Contreras-Porcia, , et al., 2012). Therefore, compounds isolated from the biomass of seaweed possess biological activity. The biomass of algae contains many valuable components: minerals, vitamins (A, B, C, E), PUFAs (ω-3), amino acids, proteins, polysaccharides, lipids, and dietary fiber (Lee, at el. 2013). Many of these bioactive constituents can be extracted to obtain antioxidative, anti-inflammatory, antimicrobial, anticancer, antihypertensive products. Particularly useful are secondary metabolites with antiviral, antimalarial, anticancer properties (Shanab, at el. 2012). Products derived from algae also contain polysaccharides, polyphenolic compounds, and terpenes (Balboa, , et al., 2013).