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高压脉冲电场对普洱熟茶中细菌影响的研究

Research on Bacterial Effects in Pu’er Fermented Tea by High Pulsed Electric Field Equipment

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【作者】 王白娟; 戴宏; 吴文彬; 叶飞; 王勇;

【Author】 WANG Bai-juan1,DAI Hong2,WU Wen-bin3,YE Fei4,WANG Yong5(1.Foundation and Information Engineering College,Yunnan Agricultural University,Yunnan Kunming 650201,China;2.School of Physical Science and Technology of Yunnan University,Yunnan Kunming 650091,China;3.Environmental Engineering School of Kunming Metallurgy College,Yunnan Kunming 650033,China;4.Kunming University of Science and Technology,Yunnan Kunming 650093,China;5.Tang zibian Community of Maguan County,Yunnan Wenshan 663700,China)

【机构】 云南农业大学基础与信息工程学院; 云南大学物理科学技术学院; 昆明冶金高等专科学校环境工程学院; 昆明理工大学; 马关县塘子边社区;

【摘要】 普洱熟茶中存在多种细菌,采用高压脉冲电场对来自云南省不同地方的8种普洱熟茶样品选择不同强度、不同频率和不同作用时间进行了灭菌处理。结果表明,处理前后其细菌总数发生了很大变化,以B组效果最好,平均灭菌率为92%,合适条件下灭菌率近100%。高压脉冲电场可为普洱熟茶的灭菌提供一条新途径。

【Abstract】 For fermented puer-tea,many different type of bacteria existed in it.In this paper,8 types of fermented puer-tea from different place under high pulsed electric field(HPEF) were treated for sterilization,the conditions of HPEF we chose were under different intensity,different frequency and different long time.The results showed that total number of bacteria greatly changed after treatment,the average sterilization rate was 92 % and the sterilization rate was nearly 100% under exact conditions.According to the results of experiments,HPEF could provide a new method of sterilization for fermented puer-tea.

【基金】 云南省教育厅课题“高压脉冲电场对普洱茶主要化学成分的影响”(2010Y319)
  • 【文献出处】 西南农业学报 ,Southwest China Journal of Agricultural Sciences , 编辑部邮箱 ,2011年01期
  • 【分类号】S571.1
  • 【被引频次】8
  • 【下载频次】187
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