抄録
In the field of biotechnology at present, in order to evaluate the viability of bacteria, colony counting is generally used. However, colony counting requires 10 to 48 hours, so delicate changes with passage of time cannot be measured. In this study, we developed a measurement tool of bacterial motion by applying PIV technique in order to evaluate the viability of bacteria quickly. By this tool, not only translational motion but also rotational motion velocity of bacteria can be measured. So the viability of wild strains with tumbling can be evaluated without mutants.
