Experimental Study of Sterilizing Molds by Ultrasound
REN Jin-lian, NIU Yong
Applied Acoustics Institute, Shaanxi Teachers University, Xi’an 710062
Experimental Study of Sterilizing Molds by Ultrasound
REN Jin-lian;NIU Yong
Applied Acoustics Institute, Shaanxi Teachers University, Xi’an 710062
关键词 ：
43.35.+d ,
43.90.+v
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.
Key words ：
43.35.+d
43.90.+v
出版日期: 1998-02-01
:
43.35.+d
(Ultrasonics, quantum acoustics, and physical effects of sound)
43.90.+v
(Other topics in acoustics)
[1]
LI Xiao-Chun;LIU Zheng-You;LIANG Hong-Yu;XIAO Qing-Wu. Band Gap and Waveguide States in Two-Dimensional Disorder Phononic Crystals
[2]
ZENG Lü-Ming;XING Da;GU Huai-Min;YANG Di-Wu;YANG Si-Hua;XIANG Liang-Zhong. Fast Microwave-Induced Thermoacoustic Tomography Based on Multi-Element Phase-Controlled Focus Technique
[3]
ZHANG Bi-Xing;WANG Cheng-Hao;LAI Pu-Xiang. Theoretical and Experimental Investigation of Ultrasonic Focusing with Annular Phased Array
[4]
SU Yi-Xiong;Ruikang K. WANG;ZHANG Fan;YAO Jian-Quan. Two-Dimensional Photoacoustic Imaging of Blood Vessel Networks within Biological Tissues
[5]
WU Di;LI Ming-Xuan;WANG Xiao-Min. Shear Wave Field Radiated by an Electromagnetic Acoustic Transducer
[6]
ZHANG Dong;KUSHIBIKI Junichi;ZOU Wei. Model Equation for Acoustic Nonlinear Measurement of Dispersive Specimens at High Frequency
[7]
ZHANG Bi-Xing. Excitation of Elastic Wave of an Arbitrary Plane Source on Surface of a Multilayered Medium
[8]
PENG Ruo-Long; QIAN Meng-Lu. Scholte Wave at Air--Metal Interface Generated by a Pulsed Disc-Like Source
[9]
NI Qing;CHENG Jian-Chun. Homogenization of Two-Dimensional Phononic Crystals at Low Frequencies
[10]
YU Jin-Fei;ZHANG Dong;GONG Xiu-Fen;GONG Yan-Jun;ZHU Zhe-Min;LIU Xue-Ming. Frequency Dependences of Sound Attenuation and Phase Velocity in Suspensions Containing Encapsulated Microbubbles
[11]
HAN Qing-Bang;WANG Hao;QIAN Meng-Lu. Liquid--Solid Interface Waves with Laser Ultrasonic and Mirage Effect
[12]
HU Wen-Xiang;QIAN Meng-Lu. Propagating Properties of Cylindrical Rayleigh Waves Generated by a Pulsed Laser Line Source
[13]
LI Ming-Xuan;WANG Xiao-Min;MAO Jie. Thickness Measurement of a Film on a Substrate by Low-Frequency Ultrasound
[14]
ZHANG Bi-Xing;LU Lai-Yu;WANG Cheng-Hao. Inversion of Rayleigh Wave in a Stratified Half Space
[15]
WU Rui-Xin;WANG Yao-Jun;. Ultrasonic Scattering by an Elastic Sphere in Matrix with Imperfect Interface
1998, Vol. 15 
