<論文>藍藻の工業的利用に関する研究 : 藍藻の連続大量培養と主要栄養塩類の代謝速度

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A blue green alga. Chroococcus sp., was cultivated continuously and the kinetics of metabolism were determined for major nurients Bottom mud from a small agricultural pond in Ube city was taken into a cultivation jar and algae were precultivated. Alga, Chroococcus sp., was transfered to a continuous cultivator which is of 13.8 dm^3 of the net volume, thermostated at 30℃, and applied light with 8 white spotlights of 200W. The culture medium contained NaHCO_3,NaNO_3,KH_2PO_4,MgSO_4,CaCl_2,FeCl_3 and EDTA. The pH value was kept at 8.O. The alga cell concentration was kept at 3,000 to 4,OOO mg/dm^3,Under these condition, the alga growth rate was 10.6 g-dry biomass/m^2-light applied area/day. The consuming rates for carbonate, nitrate and phosphate ions in light were 3.4×10^<-2>, 5.3×10^<-3> and 5.8×10^<-4> g/g-dry biomass/day and the consuming rate for oxygen in the dark was 2.7×10^<-3> and the excreting rate for phosphate ion was 8.2×10^<-6>.
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