基于能量密度的PEF灭菌实验研究  

Experimental Research about High Voltage Pulsed Sterilization Based on the Energy Density

作　　者：魏新劳[1] 延二宝[1] 李家辉[1] 王永红[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2010年第5期18-21,26,共5页Journal of Harbin University of Science and Technology

摘　　要：介绍了高压脉冲电场灭菌系统的组成,阐述了高压脉冲发生器的设计原理及食品处理室的结构.提出了单个脉冲下处理室能量密度的概念,并以此概念对脉冲电压幅度、脉冲电容器电容量及处理室容积对液体试品细菌残活率的影响进行了统一说明.实验结果表明:细菌残活率随单个脉冲下处理室能量密度的增大而降低.The elementary composition of a system for food pasteurization by using high voltage pulsed field has be explained.The design principle of a high voltage pulsed field generator and the structure of the treatment chamber are introduced.By proposing the concept of single pulse energy density,we have a unified description about the effects of voltage pulse range,capacitance of high voltage pulse capacitors and the chamber capacity with the fraction of surviving cells in liquid sample.The experimental results show that the bacteria fraction of surviving cells will be decreased by increasing the chamber energy density.

关 键 词：高压脉冲电场 灭菌 处理室能量密度 残活率 

分 类 号：TM832[电气工程—高电压与绝缘技术]