Culture Procedures in Microbiologic Assays with L. arabinosus and L. casei.

Abstract

Summary

The results indicate that the culture of L. arabinosus used in these studies |or microbiological assay was not easily affected by frequency of transfer of stock cultures or by incubation of assay tubes at fixed temperatures between 30°C and 37°C. In the case of the culture of L. casei, both the dilution of the inoculum and the age of the culture from which it was prepared affected assay titration values.