THE OPTIMUM HYDROGEN ION CONCENTRATION FOR THE GROWTH OF PNEUMOCOCCUS
Open Access
- 1 September 1918
- journal article
- Published by Rockefeller University Press in The Journal of Experimental Medicine
- Vol. 28 (3) , 345-357
- https://doi.org/10.1084/jem.28.3.345
Abstract
1. The optimum hydrogen ion concentration for the growth of the various types of pneumococcus is a pH of about 7.8. 2. The limiting hydrogen ion concentrations for the growth of pneumococcus are a pH of 7.0 and a pH of 8.3. 3. Phosphates used in adjusting reactions of media retard growth if present in a concentration greater than 0.1 molecular. 4. Culture media for pneumococci should, therefore, have an initial reaction between a pH of 7.8 and 8.0 and a total salt concentration not exceeding 0.1 M.Keywords
This publication has 2 references indexed in Scilit:
- A General Method of Estimating the Relative Turbidity or Opacity of Fluid Suspensions including Bacterial EmulsionsBiochemical Journal, 1916
- Chart Presentation of Recent Work on IndicatorsBiochemical Journal, 1911