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Food science and biotechnology v.20 no.1, 2011년, pp.183 - 191   SCIE SCOPUS 피인용횟수: 1
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Characterization of Growth and Protein Contents from Microalgae Navicula incerta with the Investigation of Antioxidant Activity of Enzymatic Hydrolysates

Kang, Kyong-Hwa    (Department of Chemistry, Pukyong National University   ); Qian, Zhong-Ji    (Department of Marine Life Science and Marine Life Research & Education Center, Chosun University   ); Ryu, Bo-Mi    (Department of Chemistry, Pukyong National University   ); Kim, Se-Kwon    (Department of Chemistry, Pukyong National University  );
  • 초록

    Microalgae are major primary producers of organic matters in aquatic environments through their photosynthetic activities. Benthic diatom Navicula incerta is the major component of phytoplankton and also relatively easy to cultivate, used as live food source in aquaculture. The growth characteristics of N. incerta were estimated under combinations of temperature, salinity, and light; and also its composition and antioxidant activities were determined. The maximum cell density of 87×105cells/mL, was reached at $20^{\circ}C$ , $250{\mu}mol/m^2{\cdot}sec$ , 33% salinity, pH 8.3, 12:12 light:dark, and F/2 medium on 2 weeks of the culture period. The antioxidant enzymatic hydrolysates efficiently quenched different free radicals: 1,1-diphenyl-2-pycryl-hydrazyl (DPPH) (pepsin $IC_{50}=196.0{\mu}g/mL$ ), hydroxyl ( ${\alpha}$ -chymotrypsin $IC_{50}=102.0{\mu}g/mL$ ), and superoxide (neutrase $IC_{50}=169.0{\mu}g/mL$ ). These results suggest that the enzymatic hydrolysate from N. incerta acts as a candidate against antioxidant and could be used as a potential functional food ingredient.


  • 주제어

    microalgae .   Navicula incerta .   growth characteristics .   antioxidant .   enzymatic hydrolysate.  

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  • 이 논문을 인용한 문헌 (1)

    1. 2013. "" Preventive nutrition and food science, 18(2): 124~132     

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