中国食品学报2012，Vol.12Issue(2)：158-164,7.
阻抗法快速分析牛奶中的菌落总数
Rapid Detection of Total Bacteria Count in Milk by the Impedance Method
摘要
Abstract
Took the conductance, the total impedance, the double-layer capacitance, the medium capacitance, the impedance angle as the examination parameter, compared and analyzed curves of change rate of these impedance parameters, obtaining that the impedance angle not be suitable for the analysis of the total bacteria count of milk. When the examination parameter was the conductance, the total impedance, or the double-layer capacitance, there was linear correlation between the detection time(DT) and the Iog10 initial bacterial counts. Analyzed the examination error by the formula △=lg(C0/CSPC)=lg(C0)-lg(CSPC). Obtaining the conductance, the total impedance be more suitable than the double-layer capacitance. Finally, compared the change tendency of FPR, FNR along with the DTTH, obtaining the suitable value of DTTH can be 440 min (the conductance and the total impedance as parameter), 410 min (the double-layer capacitance as parameter).关键词
牛奶/阻抗/菌落总数Key words
milk/impedance/the total bacteria count引用本文复制引用
张爱萍,孟瑞锋,侯式娟,唐佳妮,刘东红..阻抗法快速分析牛奶中的菌落总数[J].中国食品学报,2012,12(2):158-164,7.基金项目
十一五国家科技支撑课题(2009BADB9B06) （2009BADB9B06）
