Critical Salt Concentration Research Articles

Isolation and Purification of Fucoidin from Brown Seaweed Pelvetia wrightii

A highly purified fucoidin was isolated from Pelvetia wrightii by an improved method, which involves the removal of alginate with calcium chloride solution and purification with cetylpyridinium chloride (CPC). To this end, the critical salt concentrations of the cetylpyridinium complex of alginic acid and fucoidin in salt solutions (KCl, NaCl, CaCl2) were determined. The fucoidin of this alga contained both fucose and galactose as its constituents, in a ratio of approximately 10:1, and it is considered to be a galactofucan sulfate.

Proteins in Fish Muscle. IV. Denaturation by Salt

Study of the denaturation of cod muscle proteins by sodium chloride shows that the myosin fraction is denatured when a critical salt concentration, about 8 to 10 per cent in the muscle, is reached. Paralleling the rapid denaturation, a sudden increase of salt uptake and of moisture loss occurs.