TY - JOUR AU - Koser, Stewart A. AB - ROBERT P. WILLIAMS AND STEWART A. KOSER From the Department of Bacteriology and Parasitology, University of Chicago In a previous report- some informa­ trient broth containing known quan­ tion on destruction of vitamins by tities of added thiamine was also used in microorganisms was reviewed and evi­ some of the tests. dence of the breakdown of nicotinic acid Isolation of thiamine-utilizing bacteria. by bacteria was presented. In this report -To supplement our list of laboratory the possibility of thiamine destruction stock cultures, thiamine-utilizing types was in vestigated with the use of labora­ were sought in several natural environ­ tory stock cultures and of bacteria ments. The procedure was designed to isolated from natural environments. detect organisms which would be able to grow in the foregoing synthetic me­ METHODS dium with thiamine as the only organic compound. Approximately one g Mediums.-For much of the work a amounts of several soils were added to a simplified culture medium was used in series of tubes of 5.0 ml of 0.1% which thiamine was the only organic thiamine synthetic medium. One g compound supplied. The vitamin was amounts of feces from the guinea pig, the only source of organic carbon, but rabbit, monkey, TI - Bacterial Destruction of Thiamine JF - The Journal of Infectious Diseases DO - 10.1093/infdis/81.2.130 DA - 1947-09-01 UR - https://www.deepdyve.com/lp/oxford-university-press/bacterial-destruction-of-thiamine-dhWwADoG2P SP - 130 EP - 134 VL - 81 IS - 2 DP - DeepDyve ER -