Studies on Production of Lipids in Fungi. XXIII

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  • <I>Mortierella ramanniana</I> の連続培養によるγ- リノレン酸含有脂質の生産
  • Mortierella ramanniana ノ レンゾク バイヨウ ニ ヨル
  • Production of Lipid Containing γ- Linolenic Acid by Continuous Culture of <I>Mortierella ramanniana</I>

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Effects of various cultural factors (dilution rate, nutrient concentrations and C/N ratio) on lipid productivity (PL) and lipid content were examined in a continuous culture of Mortierella rammanniana IFO 8187. Cultural optimization lead to a maximum PL of 1.08 g/L/h at 100 g/L of inlet glucose, 0.15 h-1 dilution rate and C/N ratio of 23.4. PL was 2.9 times that in a batch culture (200 g/L of initial glucose concentration, 34 C/N ratio and 3.5 days of culture). High PL in continuous culture may possibly be related to lower glucose concentration in the culture medium (20 g/L), lower C/N ratio and relatively small decrease in lipid content at a higher dilution rate or growth rate.

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