鉄および硫黄酸化細菌の培養における2,3の性質

概要

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An iron and sulfur oxidizing bacterium BK-3,isolated from acid mine water, was used to elucidate some characteristics of the organism growing in batch culture.The dependency of the growth on substrate concentration, aeration, pH, and organic acids was shown. The efficiency of the utilization of the energy available from iron oxidation for the cell growth was much higher than that from sulfur oxidation, although the cell mass obtained in sulfur medium was about ten times that in iron medium. The specific growth rate and cell yield for ferrous iron oxidation were affected by aeration, and the maximum values were 0.07 hr^<-1> and 4.5×10^<10> cells/g-Fe, respectively, above 3.4×10<-6> mole O_2 per ml min atm in terms of oxygen transfer capacity coefficient. Organic acids such as pyruvic acid, succinic acid, fumaric acid inhibited ferrous iron oxidation and the growth of the organism.
社団法人日本生物工学会の論文
1977-01-25