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, NaHCO3 was most appropriate concerning use of dealginates. The yield of alginate extraction using NaHCO3 2wt% solution was 19.3% at 60℃. The dealginates from NaHCO3-extraction process have been found most suitable food for red-worms.

• 박권필(순천대학교 화학공학과) | Kwon-Pil Park Corresponding Author
• 김태희(순천대학교 화학공학과) | Tae-Hee Kim
• 김영숙(순천대학교 생물학과) | Young-Sook Kim