Pavlova lutheri の大量培養における光強度と細胞密度の関係について Experimental Studies of the Relation between Light Intensity and Cell Density of Mass Cultured Pavlova lutheri

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Producing large quantities of microalgae is one of the most limiting factors when developing large-scale culture techniques for shellfish. When artificial light is used for producing microalgae, it is one of the most expensive costs. In this study, we conducted experiments to determine the optimum light intensity and efficient culture protocol for microalga <I>Pavlova lutheri</I> using a 200-liter chamber.<BR>A 200-liter culture chamber was used to determine the average distribution of PPFD. Under two conditions : 1) filtered seawater (control), and2) filtered seawater with culture medium added and 1.0×10<SUP>7</SUP> cells·m<I>l</I><SUP>-1</SUP> <I>P. luatheri</I>. Average distribution of PPFD for the filtered sea water was 1, 800μmol·m<SUP>-2</SUP>·s<SUP>-1</SUP> at irradiation of the full light intensity. But when <I>P. lutheri</I> was cultured in the chamber, available photosynthetic area was reduced to a half of the chamber.<BR><I>P. lutheri</I> was cultured at irradiation of10%, 30%, 60%and full light intensity at 15°C and an aeration of 30<I>l</I>·min<SUP>-1</SUP>. Maximum cell density correlated positively to light intensity with full light regime supporting more than 2.0·10<SUP>7</SUP>cells·m<I>l</I><SUP>-1</SUP>.<BR>We conclude that if higher light intensity is used for the chamber, <I>P. lutheri</I> will obtain nigher cell densities. Additionally the control of light intensity is effective method to decrease the production cost of <I>P. lutheri</I>.

収録刊行物

  • 植物工場学会誌

    植物工場学会誌 12(4), 261-267, 2000-12-01

    JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS

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各種コード

  • NII論文ID(NAID)
    10012980082
  • NII書誌ID(NCID)
    AN10451761
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09186638
  • NDL 記事登録ID
    5585713
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z18-3397
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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