Series quartz crystal sensor for remote bacteria population monitoring in raw milk via the Internet

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Series quartz crystal sensor for remote bacteria population monitoring in raw milk via the Internet
出版類型SCI(Sciences Citation Index)
出版年度2006
AuthorsYuan-Guey Lee, 李元貴
開始頁1581
頁數9
出版日期2006 / 2
其他編號0000
中文摘要

A remote monitoring system based on a piezoelectric quartz crystal (SPQC) sensor was developed for the determination of the bacteria population in raw milk. The system employs the Windows XP server operating system, and its programs for data acquisition, display and transmission were developed using the LabVIEW 7.1 programming language. The circuit design consists of a circuit with a piezoelectric quartz crystal (SPQC) and a pair of electrodes. This system can provide dynamic data monitoring on a web-page via the Internet. Immersion of the electrodes in a cell culture with bacteria inoculums resulted in a change of frequency caused by the impedance change due to microbial metabolism and the adherence of bacteria on the surface of the electrodes. The calibration curve of detection times against density of bacteria showed a linear correlation coef?cient (R2 = 0.9165) over the range of 70–106 CFU ml?1. The sensor could acquire suf?cient data rapidly (within 4 h) and thus enabled real-time monitoring of bacteria growth via the Internet. This system has potential application in the detection of bacteria concentration of milk at dairy farms. c 2005 Elsevier B.V. All rights reserved.

期刊名稱Biosensors and Bioelectronics
校址:912 屏東縣內埔鄉學府路1號 總機:886-8-7703202 傳真:886-8-7740165 系統開發統維護單位:國立屏東科技大學 電算中心 版權所有