한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제49권1호
  • /
  • Pages.38-44
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  • 2016
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  • 0374-8111(pISSN)
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  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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배양방법에 따른 Euglena gracilis의 성장 및 지방산 조성

Effects of Culture Methods on the Growth Rates and Fatty Acid Profiles of Euglena gracilis

  • 정우철 (경상대학교 해양식품생명의학과) ;
  • 최종국 (경상대학교 해양식품생명의학과) ;
  • 강창민 (안전성평가연구소 경남환경독성본부) ;
  • 최병대 (경상대학교 해양식품생명의학과) ;
  • 강석중 (경상대학교 해양식품생명의학과)
  • Jeong, U-Cheol (Department of Seafood and Aquaculture Science, Gyeongsang National University) ;
  • Choi, Jong-Kuk (Department of Seafood and Aquaculture Science, Gyeongsang National University) ;
  • Kang, Chang-Min (Institute of Toxicology) ;
  • Choi, Byeong-Dae (Department of Seafood and Aquaculture Science, Gyeongsang National University) ;
  • Kang, Seok-Joong (Department of Seafood and Aquaculture Science, Gyeongsang National University)
  • 투고 : 2016.01.16
  • 심사 : 2016.02.17
  • 발행 : 2016.02.28
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초록

The quality and quantity of live food sources strongly influence the success of fish production in farming operations. Thus, critical studies of live forage species are a crucial element for progress in fish aquaculture. The fat content of food is an especially important determinant of growth in marine fish. Omega-3 highly unsaturated fatty acids (HUFA) are essential components of diet that determine the nutritional value of larval fish. Euglena is a protist that has potential as a forage species. These single-celled organisms have plant and animal characteristics they are motile, elliptical in shape and 15–500 μm in diameter. Their nutritional content is excellent, but most studies have focused on cells raised in autotrophic culture. We therefore examined differences in the lipid and fatty acid contents, and the growth of Euglena cells grown under autotrophic, heterotrophic, and mixotrophic conditions. Biomass production reached 15.03 g/L, 12.28 g/L, and 3.66 g/L under mixotrophy, heterotrophy, and autotrophy, respectively. The proportional n-3 HUFA content differed among culture methods: 10.04%, 5.80% and 10.01% in mixotrophic, heterotrophic and autotrophic cultures, respectively. Mixotrophy was to be the best form of cultivation for improving the growth and nutritional content of Euglena.

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참고문헌

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