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The Korean Society of Phycology (한국조류학회(藻類))
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Enhanced Production of Chlorella ovalis and Dunaliella parva by the Rates of Medium Composition Obtained from the Fermented Animal Wastewater Including a Natural Substitute Chelator for EDTA

EDTA 대체용 천연 킬레이팅제를 함유한 발효 축산폐수의 배지조성률에 따른Chlorella ovalis와 Dunaliella parva의 생산성 강화

  • Jeon, Seon-Mi (Department of Biology, Yeungnam University) ;
  • Jeune, Kyung-Hee (Department of Biology, Yeungnam University) ;
  • Kim, Mi-Kyung (Marine Science Research Center, Environmental Research Institute, Yeungnam University)
  • Published : 2006.09.30
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Abstract

The productivities of Chlorella ovalis and Dunaliella parva were influenced by the rates of medium compositions obtained from the fermented animal wastewater (BM: bacteria mineral water) including a natural substitute chelator for EDTA (etylenediaminetetraacetic acid). The most favorable medium was -E+50 adding 50% BM in f/2 medium instead of EDTA, a chemical chelator, which increased more 19-fold of cell density in C. ovalis and 7-fold in D. parva than cells cultured on f/2 medium as well as the enhancements of chlorophyll a (f/2-E: 0.26 g L–1, -E+50: 1.5 g L–1 in C. ovalis; f/2-E: 2.7 g L–1, -E+50: 15 g L–1 in D. parva) and the increase of maximal PSII quantum yields. These results were verified that the BM could play an important part as a natural chelator substituted for EDTA. In the fields of biotechnology, food organisms in fishery and eco-industries of CO2 sequestration in air and nutrient removal in water, the natural chelator of BM could be applied to enhance the biomass of the other microalgae.

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