多波形超声波辐照对啤酒酵母细胞生长的影响

Effects of Multi_Waveform Ultrasound Irradiation on the Growth of Saccharomyces Cerevisiae

研究了四种波形的超声波对啤酒酵母细胞生长的影响. 在细胞生长的调整期进行超声辐照时， 各种处理对细胞生长都有不同程度的促进作用， 其中第三波形的效果最好； 在对数生长期进行处理时， 对细胞生长有抑制作用， 且前期处理效果最好的波形对后期的抑制作用也最明显. 在平衡期进行处理， 对细胞生长没有明显影响.

： Four types of ultrasonic waves are employed to study the effects of ultrasonic i rradiation on the growth of Saccharomyces cerevisiae cells at different phas e of growth. When cells were irradiated with Wave III at lag phase, positive eff ects were observed. Effects observed at logarithmic phase show that the worse w aveform at logarithmic phase is the better one at lag phase. No obvious effects were observed at platform phase under ultrasonic irradiation.