Abstract
The iodine content of 109 commercial Laminaria products in Japan was determined.
The highest value of 539mg% was found in Konbu-tya, the lowest one was 6mg% in Konbutsukudani. Variations were observed in the sample of the same kind. The obtained values were: Kiri-konbu 180-380mg%; Konbu-tsukudani 6-120mg%; Konbu-tya 30-539mg%; Konbu-natto 154-327mg%; Ama-konbu and Su-konbu 65-210mg%; Tsume-konbu 207-228mg%.
