Characteristics of Seaweed Salts Prepared with Various Seaweeds

해조소금의 성분 특성에 관한 연구

  • Kim, Dong-Han (Department of Food and Nutrition, Mokpo National University) ;
  • Rhim, Jong-Whan (Department of Food Engineering, Mokpo National University) ;
  • Lee, Sang-Bok (National Honam Agricultural Experimental Station, R.D.A.)
  • Published : 2003.02.01


Physicochemical properties and mineral compositions of seaweed salts prepared with various seaweeds and concentrated sea water were determined. Ash content of sea mustard was highest (22.7%) and that of laver the lowest (9.8%). Sea mustard contained high amount of Na, while sea tangle and seaweed fusiforme contained high amounts of K and Ca. When insoluble solids were removed after incineration of dried salt, surface color of the salt whitened more due to increase in salt purity with resulting decreases in pH and oxidation-reduction potential (ORP), pH and ORP of the ashed salt decreased, and K and Ca contents increased, while Mg content decreased. Yield of seaweed salt was the highest in sea mustard, ORP was lowest in sea tangle and seaweed fusiforme, and K and Ca contents increased significantly in sea tangle and seaweed fusiforme salts. As the concentration of sea water increased, yield and purity of the salts increased with decrease in pH and ORP and increase in Ca and Mg contents. Seaweed salt showed the characteristic crystalline structure as viewed by SEM.


seaweed salt;mineral composition;ORP


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