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Experimental Study of Sterilizing Molds by Ultrasound |
| REN Jin-lian;NIU Yong |
| Applied Acoustics Institute, Shaanxi Teachers University, Xi’an 710062 |
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| Cite this article: |
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REN Jin-lian, NIU Yong 1998 Chin. Phys. Lett. 15 115-116 |
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Abstract An ultrasound method of sterilizing aspergillus flavus and fusarium is proposed and demonstrated. The dependence of sterilizing effect on ultrasonic intensity, frequency, and treatment time is experimentally investigated. The density of surviving spores decreases first with increasing ultrasonic frequency and then increases with the further increase of the frequency, that is to say, there exists the optimum frequency 26 kHz at which the killing rate is near 100%. The killing rate seems proportional to the intensity and the time.
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| Keywords:
43.35.+d
43.90.+v
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Published: 01 February 1998
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| PACS: |
43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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43.90.+v
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(Other topics in acoustics)
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