ある細菌が尿中に繁殖してリグニンを赤くする現象に就いて : (第8報)微生物による尿インヂカンの加水分解

概要

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As reported previously, lignin paper turned to deep red, when incubated in the urine culture-medium containing the L. R. bacterium. The mechanism of this lignin coloration is due to the formation of a complex with indoxyl, which is produced by the hydrolysis of urine-indican by the bacterium. In the present paper, many strains of microörganisms were used in this color-reaction instead of the L. R. bacterium. Among the microorganisms tested, all of fungus species (8 species), a major part of Aerobacter aerogenes, and a few of undetermined nonspore-forming bacteria hydrolysed urine-indican, but few strains of Escherichia could hydrolyse it. The L. R. bacterium was the sole species among the lactic acid bacteria, which could produce indoxyl.
社団法人日本農芸化学会の論文