Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (12): 47-50.

• Biological Engineering • Previous Articles     Next Articles

Efect of Dynamic M agnetic Field on M icroorganisms

Xu xi-lin  Guo Si-Yuan  Li Lin   

  1. College of Light Chemistry and Food Science,South China Univ.ofTech.,Guangzhou 510640,Guangdong,China
  • Received:2005-09-26 Online:2006-12-25 Published:2006-12-25
  • Contact: 许喜林(1964-) , 男, 副教授, 主要从事食品安全、食品微生物的研究. E-mail:xuxilin@ scut. edu. cn
  • About author:许喜林(1964-) , 男, 副教授, 主要从事食品安全、食品微生物的研究.
  • Supported by:

    国家自然科学基金重点项目( 20436020); 广州市科技攻关计划项目( 2004Z2-E0171)

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Abstract:

This paper investigates the survival law of microorganisms under the action of dynamic magnetic field (DMF).The research results show that(1)few yeast cells survive under the action of DMF;(2)DMF has a greater effect on mildew than on yeast,and about 80% of mildew spores cannot sprout due to the action of DMF;and(3)most ofthe bacteria do not survive under the action of DMF although the efect of DMF varies with the spe-cies;and(4)under the action of DMF,the cell structure can be damaged,and some cell components of microorganisms,for example,the nucleic acid,can leak from the cell to the broth．It is thus concluded that DMF treat-ment can be applied to the control of microorganism in industry.

Key words: magnetic field effects, dynamic magnetic field, microorgan ism, survival, industrial application