Laminariais a genus of brown algae (Phaeophyceae), characterized
by long sections blade-shaped, relatively large size and palm
shape of a hand, with finger-like segments more or less regular
[56]. L. hyperborea, one of the 31 species of Laminaria, is characterized
by its size, which can reach 3 m length, and its durability,
since it has a useful life of 10 to 20 years. L. hyperborea has been
commercially used for the extraction of alginate and occurs naturally
in northern Europe Atlantic waters [57]. Table 4 shows some
physical properties of raw L. hyperborea.