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Biomedical subjects

S Yagi

Publications and source records attributed to S Yagi.

At least 343 records · Page 19Linked to original sources
PubMed1971

Stimulative effect of elemental sulfur on siomycin production by Streptomyces sioyaensis.

The addition of elemental sulfur to the fermentation of Streptomyces sioyaensis in a soybean meal medium resulted in a three- to fourfold increase of siomycin. Further experiments on the effect of elemental sulfur during fermentation suggest that one of the key steps stimulating siomycin synthesis is the utilization of thiosulfate, which accumulates in the medium as the result of the oxidation of elemental sulfur.

Anti-Bacterial Agents↗
PubMed1971

Oxidation of elemental sulfur to thiosulfate by Streptomyces.

Streptomyces sioyaensis, which produces the antibiotic siomycin, oxidizes elemental sulfur when added to the culture medium and accumulates thiosulfate in the fermented broth. The accumulated thiosulfate was isolated as the ammonium salt and was identified by melting point, IR spectrum, and paper chromatography. A variety of other streptomycetes also oxidized elemental sulfur and accumulated thiosulfate.

Anti-Bacterial Agents↗