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。
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.
出处
《西南农业学报》
CSCD
北大核心
2011年第1期380-383,共4页
Southwest China Journal of Agricultural Sciences
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)
关键词
高压脉冲电场
普洱熟茶
细菌
High pulsed electric field（HPEF）
Fermented puer-tea
Bacteria
作者简介
王白娟（1979-），女，白族，云南剑川人，讲师、硕士，主要从事农业信息的研究。
