Journal of Applied Phycology

, Volume 26, Issue 2, pp 967–972 | Cite as

Accumulation of phlorotannins in the abalone Haliotis discus hannai after feeding the brown seaweed Ecklonia cava

  • Issa Bangoura
  • Muhammad Tanvir Hossain Chowdhury
  • Ji-Young Kang
  • Ji-Young Cho
  • Je-Cheon Jun
  • Yong-Ki HongEmail author


Value-added abalone Haliotis discus hannai containing bioactive phlorotannins is produced by simply changing the feed to phlorotannin-rich brown seaweed Ecklonia cava 2 weeks prior to harvesting. We assessed the accumulation of phlorotannins by feeding with the seaweed after 4 days of starvation. Reverse-phase high-performance liquid chromatography afforded isolation of the major phlorotannins, which were identified by mass spectrometry and 1H-nuclear magnetic resonance to be 7-phloroeckol and eckol. Throughout the E. cava feeding period of 20 days, 7-phloroeckolol accumulated in the flesh (foot muscle tissue), up to 0.85 ± 0.21 mg g−1 dry weight of tissue after 12 days. Eckol reached 0.31 ± 0.08 mg g−1 dry tissue after 14 days. Feeding Laminaria japonica as a control, we detected no phlorotannins in the abalone muscle tissue. Abalone seaweed consumption and growth rate were similar when fed with E. cava or L. japonica for 20 days. Reduction in phlorotannins to half-maximal accumulation took 1.0 and 2.7 days for 7-phloroeckol and eckol, respectively, after replacement of the feed with L. japonica.


Abalone Accumulation Ecklonia cava Phlorotannins 



This work was supported by the Ministry of Marine Affairs and Fisheries R&D Project “Aquaculture 10 Species” in Korea. We thank National Institute for International Education Development of Korea for graduate scholarship (IB).


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Issa Bangoura
    • 1
  • Muhammad Tanvir Hossain Chowdhury
    • 2
  • Ji-Young Kang
    • 2
  • Ji-Young Cho
    • 3
  • Je-Cheon Jun
    • 4
  • Yong-Ki Hong
    • 2
    Email author
  1. 1.International Program of Fisheries Sciences, Graduate SchoolPukyong National UniversityBusanRepublic of Korea
  2. 2.Department of BiotechnologyPukyong National UniversityBusanRepublic of Korea
  3. 3.Department of Marine BiotechnologySoonchunhyang UniversityAsanRepublic of Korea
  4. 4.Aquaculture Management DivisionNational Fisheries R & D InstituteBusanRepublic of Korea

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