Seaweed polysaccharides alginates

Anhydro sugars occur as components of seaweed polysaccharides such as alginate and agar. Sugar acids occur in the pectic sub-... 

In 1962, she married Richard McDowell of Alginate Industries Ltd., and together they wrote the monograph, Chemistry and Enzymology of Seaweed Polysaccharides.81 Kempson then moved to Royal Holloway College as an Honorary Lecturer, where she built up a new research group. Her collaborators included 26 Ph.D. students, and resulted in more than 100 publications. 

The seaweed polysaccharides based super absorbents and adhesive were prepared from the blend of agar and sodium alginate (Agar/Na-Alg), and Aappa-carrageenan (kC) as described In our earlier reports [26,35], Liquid and solid weights of applied adhesive were measured using the standard method described In our previous work [26],... 

Infra red spectra of the non-modified and modified seaweed polysaccharides were recorded in KBr on a Perkin-Elmer Spectrum GX, FT-IR System (USA). G NMR spectra were recorded on a Bruker Avance-II 500 spectrometer, Switzerland, at 125 MHz. The parent polysaccharide and their modified products were dissolved in D2O (40 mg/ml) and the spectra were recorded at 70°C with 5000 accumulations, pulse duration 5.9 ps, acquisition time 1.2059 s and relaxation delay 6 ps using DMSO as internal standard (ca. 8 39.5). The NMR of alginic acid and otolidine was carried out at 70 and at room temperature and were dissolving in NaOH/D20 and MeOH/D20, respectively. 

These materials are another polysaccharide. The name derives from its original source, brown algae. The current commercial sources are brown seaweeds such as Laminaria digitata, L. hyperborea, Ascophyllium nodosum and Fucus serratus. Different properties are obtained in alginates from different seaweeds. The sources are rocky coasts in the United States, the United Kingdom, France and Norway. 

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