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Polysaccharides ·Seaweed ·Plant Exudates ·Seed gums Plant structural material ·Microbial gums ·Starch Seaweed ·Agar ·Alginate ·Carrageenans ·Furcellaran Problem:Alginates are heteroglycans made from B-D-marmuronic and a-Lguluronic acids join by 4 linkages. The polysccharide is linear and consists of periods of three Distinct repeating regions as defined below 【+4)-go-ManpA(t+4外eo-ManpA0+l. 【→)-gt-GupA→4at-GpA→L 【+4)-3-p-ManpA(t-+4e-t:GupA1-+l。 A solution ofalginate will gel with calcium.Draw The structures of the three regions and predict which region forms The gel with calcium cross linking. Plant Exudates ·Gum Arabic ·Gum Ghatti ·Gum Tragacanth ·Karaya Gum 99 Polysaccharides • Seaweed • Plant Exudates • Seed gums • Plant structural material • Microbial gums • Starch Seaweed • Agar • Alginate • Carrageenans • Furcellaran Problem: Alginates are heteroglycans made from β-D-mannuronic and α-L-guluronic acids join by 1--> 4 linkages. The polysaccharide is linear and consists of periods of three Distinct repeating regions as defined below A solution of alginate will gel with calcium. Draw The structures of the three regions and predict which region forms The gel with calcium cross linking. Plant Exudates • Gum Arabic • Gum Ghatti • Gum Tragacanth • Karaya Gum
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