An unidentified growth factor in the nutrition of Lactobacillus casei.

@article{Rege1954AnUG,
  title={An unidentified growth factor in the nutrition of Lactobacillus casei.},
  author={D. V. Rege and A. Sreenivasan},
  journal={Journal of bacteriology},
  year={1954},
  volume={67 6},
  pages={680-5}
}
The complexity of the nutritive requirements of Lactobacillus casei is known. The organism develops slowly in synthetic or semisynthetic media such as the one described by Landy and Dicken (1942). Assay media for this organism therefore include crude supplements like peptone (Teply and Elvehjem, 1945) or trypsinized casein (Roberts and Snell, 1946). The active principle responsible for the shortening of lag phase of growth supplied by these materials was held to be strepogenin (Sprince and… CONTINUE READING