This study demonstrated that the lambda- and iota-carrageenans, sulfated polysaccharides containing linear chains of galactopyranosyl residues, are potent inhibitors of dengue virus type 2 (DENV-2) and 3 (DENV-3) multiplication in Vero and HepG2 cells, with values of effective concentration 50% from 0.14 to 4.1 microg/ml. This activity was assayed by plaque reduction, virus yield inhibition and...

Stone biodeterioration by cyanobacteria is a common issue in the field of cultural heritage. As they are considered first stone colonizers, need to control their growth has increased. In this study, we evaluated effectiveness kappa/iota carrageenans from red seaweed Chondracanthus teedei var. lusitanicus against limestone proliferation cyanobacterium Parakomarekiella sesnandensis, under laborat...

Carrageenans are sulfated polysaccharides extracted from the cell wall of some marine red algae. These polysaccharides are widely used as gelling, stabilizing, and viscosifying agents in the food and pharmaceutical industries. Since the rheological properties of these polysaccharides depend on their sulfate content, we screened several isolated marine bacteria for carrageenan specific sulfatase...

The unique attributes, biodegradability, biocompatibility, perfect accessibility, and low production costs led to the use of natural gums in a different section our lives. Among them, we can mention obtained from microorganisms (xanthan gum gellan gum), plant tissues (Arabic tragacanth), seeds (konjac guar seaweeds (alginates, agar gum, carrageenans). Gums have essential applications medical ph...