食品科学 ›› 1998, Vol. 19 ›› Issue (1): 16-19.

• 食品科学 • 上一篇    下一篇

脉冲强光杀菌技术的研究

 周万龙, 高大维, 夏小舒   

  1. 华南理工大学食品与生物学院; 深圳大学应用化学系
  • 出版日期:1998-01-15 发布日期:2011-12-09

Study on sterilizing technology with pulsed light

 ZHOU  Wan-Long, GAO  Da-Wei, XIA  Xiao-Shu   

  • Online:1998-01-15 Published:2011-12-09

摘要: 采用脉冲强光杀菌输人能量为700J,光脉冲宽度小于800μs。当闪照次数多于30次时可使枯草芽抱杆菌、酵母由10~5个/nd减少到0个:在一定的时间内,分段照射对杀菌效果影响不大,杀菌作用的主要波段可能是紫外线,脉冲强光不改变菌液的电导率,使其电位有较大的改变。

关键词: 脉冲, 光, 杀菌

Abstract: Sterilizing with pulsed light was studied. The results showed that the main factors affecting sterilizing effect were amount of pulsed light flashs, input voltage, the initial concentration Of microorganisms. More than30 pulsed light flashs can kill Bactillus subtilis, yeast from 10~5/ml to 0. The band mainly deciding sterilizing effect was probably ultraviolel wavelenths. Sterilizing with pulsed light did not caused change in specific conductance but cause change in potential.

Key words: Pulse, Ligh, Sterilization