乳酸桿菌の酸素消費能について(第1報)培養炭素源と酸素消費能の関係

概要

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Lactobacillus acidophilus A-28,L. casei S-1,L. casei C-16,L. plantarum 11-35,L. arabinosus and L. fermenti F-4 were grown aerobically in a MRS glucose medium. The suspensions of each cell consumed oxygen in the presence of glucose. The oxygen consumption of lactobacilli takes place in a cytochrome-independent electron transport system with little inhibition by respiratory inhibitors such as KCN, NaN_3 or antimycin A. Most lactobacilli except L. fermenti were grown aerobically also in a MRS mannitol medium. The suspensions of each cell consumed markedly more oxygen in the presence of mannitol than in the presence of glucose. L. acidophilus grown in a hexose (glucose, mannose, galactose or fructose) medium consumed more oxygen in the presence of hexose than in the presence of polyol (sorbitol or mannitol). L. acidophilus grown in a polyol medium consumed markedly more oxygen in the presence of polyol than in the presence of hexose. The activity of D-mannitol-1-phosphate : NAD oxidoreductase in cells grown in the mannitol medium was much higher than that of cells grown in the glucose medium. These results suggest that the increase of oxygen consumption of lactobacilli by repeated cultivations in a MRS polyol medium closely relates to the adaptive synthesis of the enzymes concerned with the polyol utilization.
社団法人日本薬学会の論文
1979-04-25