Abstract: The capability of C.laurentii growth in wort medium was studied, which included the growth dynamics of C. laurentii in Erlenmeyer flasks and in fermentor. The populations of C.laurentii increase quickly in wort medium. There is almost no postponing stage in its growth life. In Erlenmeyer flasks, the maximum yeast populations can reache within 20h after inoculation in Erlenmeyer flasks with the growth of C.laurentii coming into stationary phase. In fermentor, the growth of C. laurentii comes into stationary phase after 30h incubation. The growth of C.laurentii in wort medium makes the pH value of medium decrease.

Key words: C.laurentii, the capability of growth, incubation in Erlenmeyer flasks, incubation in fermentor, pH value