Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5144737 | Ultrasonics Sonochemistry | 2017 | 33 Pages |
Abstract
Effects of low-intensity ultrasound (at different frequency, treatment time and power) on Saccharomyces cerevisiae in different growth phase were evaluated by the biomass in the paper. In addition, the cell membrane permeability and ethanol tolerance of sonicated Saccharomyces cerevisiae were also researched. The results revealed that the biomass of Saccharomyces cerevisiae increased by 127.03% under the optimum ultrasonic conditions such as frequency 28Â kHz, power 140Â W/L and ultrasonic time 1Â h when Saccharomyces cerevisiae cultured to the latent anaphase. And the membrane permeability of Saccharomyces cerevisiae in latent anaphase enhanced by ultrasound, resulting in the augment of extracellular protein, nucleic acid and fructose-1,6-diphosphate (FDP) contents. In addition, sonication could accelerate the damage of high concentration alcohol to Saccharomyces cerevisiae although the ethanol tolerance of Saccharomyces cerevisiae was not affected significantly by ultrasound.
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Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Chunhua Dai, Feng Xiong, Ronghai He, Weiwei Zhang, Haile Ma,