Extraction of Alginate from Waste-Brown Seaweed and Use of Dealginate

미역폐기물로부터 알기네이트의 추출 및 디알기네이트의 이용

  • 박권필 (순천대학교 화학공학과) ;
  • 김태희 (순천대학교 화학공학과) ;
  • 김영숙 (순천대학교 생물학과)
  • Published : 2003.01.01


Effective alginate extraction from waste-brown seaweeds was studied. The waste-brown seaweeds almost consist of stems of seaweeds. Alginate could be obtained from the stems as well as leaves of seaweed. Ultrasonic vibration(47kHz) facilitated filtering step in the alginate extraction process. Among various alkalies for alginate extraction, $NaHCO_3$ was most appropriate concerning use of dealginates. The yield of alginate extraction using $NaHCO_3$ 2wt% solution was 19.3% at $60^{\circ}C$. The dealginates from $NaHCO_3$-extraction process have been found most suitable food for red-worms.


Waste;Brown seaweed;Alginate;Dealginate;Extraction;Red-worms;$NaHCO_3$


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  1. Storage of Waste-Brown Seaweed and Degradation of Alginate Using Microorganism vol.13, pp.3, 2004,