Algae Macrocystis pyrifera

Gomez, C.G., Perez Eambrecht, M.V., Lozano, J.E., Rinaudo, M., Villar, M.A. Influence of extraction-purification conditions on final properties of alginates obtained from brown algae (Macrocystis pyrifera). Int. J. Biol. Macromol. 44, 365-371 (2009)... 

Tin concentrations in algae collected near the Scripps Institution of Oceanography, Calif, and in coastal marine sediments from Narragansett Bay, USA, were determined by Hodge and coworkers42. Tin concentrations of the blades of Pelagophycus porra, Macrocystis pyrifera and Eisenia arborea were 0.71 0.01, 0.83 0.01 and 1.06 0.02 i-gSng 1 dry wt., respectively. Tin concentrations in the core of sediments are shown in Table 8. 

Vanadium bromoperoxidase (V-BrPO) has been isolated from many species of marine brown algae, including A. nodosum [1,26,27], Laminaria saccharina [28], Fucus distichus [29], and Macrocystis pyrifera [29] the red algae Ceramium rubrum [30] and C. pilulifera [31] and a terrestrial lichen, Xanthoria parie-tina [32],... 

Seaweed e.g. Macrocystis pyrifera (giant kelp, brown alga) (Phaeophyceae)... 

Despite the low lipid content in seaweed, their fat contains high level of vitamin E. Generally, brown seaweeds contain more a-tocopherol (also p- and y-tocopherols) than red and green algae which contain only a-tocopherol. The highest amount of vitamin E was detected in kelp Macrocystis pyrifera, 32.77 mg/100 g fat (a-tocopherol), with total tocol content of 145.72 mg/100 g fat, and in Ulva lactuca with y-tocopherol value... 

Alginate is extracted from brown algae (Phaeophyceae), including Laminaria digitata, Laminaria hyperborea. Laminaria japonica, Macrocystis pyrifera, and Ascophyllum nodosum [27] by treatment with aqueous alkali (NaOH) solutions [28], The filtered extract is treated with sodium or calcium chloride to precipitate alginate. Azotobacter and Pseudomonas may produce alginate by a biosynthesis pathway. 

Alginates, which are also called alginic acids, are anionic linear polysaccharides secreted by brown seaweed and marine algae, including Laminaria hyperborea, Ascophyllum nodosum and Macrocystis pyrifera [3]. 

Kelp occurs as a dark green to olive brown, dry substance. It is the dehydrated seaweed obtained from the class Phaeo-phyceae (brown algae) of the genera Macrocystis (including M. pyrifera and related species) and Laminaria (including L. digitata, L. cloustoni, and L. saccharina). The seaweed may be chopped to provide coarse particles and/or it may be ground to provide a fine powder. 

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