Synthesis of Vitamins by Intestinal Bacteria
- 1 July 1942
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 28 (7), 285-289
- https://doi.org/10.1073/pnas.28.7.285
Abstract
Biotin, riboflavin, nicotinic acid and thiamine are produced in varying amts. by pure cultures of Escherichia coli, Proteus vulgaris, Bac-terium aerogenes, Alkaligenes jecalis, Bacillus mesentericus and Bacillus vulgatus except that P. vulgaris fails to produce nicotinic acid and B. mesentericus fails to produce biotin in detectable quantities. Far less biotin is always produced than of the other vitamins. Evidently these bacteria synthesize B vitamins in excess of their requirements. After 111 hr. the filtrate contains 30-40% of the 4 vitamins produced by Bact. aerogenes.This publication has 4 references indexed in Scilit:
- Nicotinalviide and Related Compounds as Essential Growth Substances for Dysentery BacilliThe Journal of Infectious Diseases, 1939
- Adaptation of the Propionic-Acid Bacteria to Vitamin B 1 Synthesis Including a Method of AssayJournal of Bacteriology, 1939
- The Phycomyces Assay for Thiamin (Vitamin B 1 ): The Method and its Chemical SpecificityAmerican Journal of Botany, 1938