Chemical species of iodine in some seaweeds II. Iodine-bound biological macromolecules

The distribution of iodine in various biological macromolecules in Sargassu m kjellmanianum was studied using neutron activation analysis combined with chemical and biochemical separation techniques. The results indicate that iodine is mainly bound with protein, part of iodine with pigment and polyph enol, and little with polysaccharides, such as algin, fucoidan and cellulos e. This result is significant for the mechanism of enriching iodine of alga e and utilization of alga iodine.