Effect of ultrasonic frequency and power on the disruption of algal cells

•The disruption of algae is dependent on both the frequency and acoustic power.•High-frequency sonication for algal cell is more effective than low-frequency.•Less energy is needed for disrupting D. salina than C. concordia at any frequency.•Suitable disruption frequencies were associated with the c...

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Bibliographic Details
Published in:Ultrasonics sonochemistry 2015-05, Vol.24, p.165-171
Main Authors: Yamamoto, Ken, King, Patrick M., Wu, Xiaoge, Mason, Timothy J., Joyce, Eadaoin M.
Format: Article
Language:English
Subjects:
Algae
Cavitation
Chlorophyta - physiology
Disruption
High frequency sonication
Sonication - methods
Species Specificity
Ultrasonic Waves
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Summary:•The disruption of algae is dependent on both the frequency and acoustic power.•High-frequency sonication for algal cell is more effective than low-frequency.•Less energy is needed for disrupting D. salina than C. concordia at any frequency.•Suitable disruption frequencies were associated with the cell’s mechanical properties. In this work the effect of ultrasonic waves on suspensions of Chlamydomonas concordia and Dunaliella salina have been investigated at frequencies of 20, 585, 864 and 1146kHz and at different acoustic powers. Results showed that the reduction in algal numbers was dependent on both frequency and acoustic power. The order of efficiency of the ultrasonic disruption of C. concordia at different frequencies was 20
ISSN:1350-4177
1873-2828
DOI:10.1016/j.ultsonch.2014.11.002