いわゆる有胞子乳酸菌の製剤学的研究 (第1報)

抄録

In order to prepare intestinal and digestive preparations of living bacteria from the so-called spore-bearing lactic acid bacteria, different from the ordinary Lactobacillus in that they form heat-resistant spores, bacteriological and biological properties of six strains of this bacteria were examined. One of the strains, P 43, was found to be suitable for the present purpose. P 43 is a strain of spore-bearing Lactobacillus which grows in aerobic or in facultative anerobic conditions at 37° and the living cells themselves are also extremely resistant to heat. It has no hemolytic or toxic properties, does not generate indole or hydrogen sulfide, and does not require special vitamin B₁ and B₂ for growth. It coagulates milk and forms a large amount of lactic acid from glucose by homofermentation, just as in ordinary Lactobacillus, and a large number of sugars are fermented by this bacillus.