Abstract
Among 205 strains of yeast cultured by the Takamine Laboratory, Sacch. rouxii 4028 and Candida albicans 4888 were found to be most available for the preparation of pyridoxal-5-phosphate. 0.2 mcg of pyridoxal-5-phosphate was formed in 1ml of the medium by the strains. The maximum amounts of pyridoxal-5-phosphate were found at about three days after inoculation in the cells, and at about four days in the medium. Therefore, it has been assumed that pyridoxal-5-phosphate may accumlate for the logarithmic phase in the cells and excrete into the broth in the stationary phase.
