Real-time monitoring of induced adaptation of redox active Escherichia coli biofilm by EQCM-controlled extracellular redox environment

2010 ◽  
Vol 12 (4) ◽  
pp. 600-602 ◽  
Author(s):  
Xuan-Hui Xie ◽  
Erin Lin Li ◽  
Zi Kang Tang
Keyword(s):  
Escherichia Coli ◽  
Real Time ◽  
Real Time Monitoring ◽  
Redox Environment ◽  
Redox Active

Real-Time Bioluminescence Analysis of Escherichia coli O157:H7 Survival on Livestock Meats Stored Fresh, Cold, or Frozen

2018 ◽  
Vol 81 (11) ◽  
pp. 1906-1912 ◽  
Author(s):  
SEONG B. PARK ◽  
SHECOYA B. WHITE ◽  
CHRISTY S. STEADMAN ◽  
CLAY A. CAVINDER ◽  
SCOTT T. WILLARD ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Real Time ◽  
Bacterial Growth ◽  
Room Temperature ◽  
Storage Conditions ◽  
Escherichia Coli O157 ◽  
Production Environment ◽  
Real Time Monitoring ◽  
E Coli ◽  
C Storage

ABSTRACT Foodborne bacteria such as Escherichia coli O157:H7 can cause severe hemorrhagic colitis in humans following consumption of contaminated meat products. Contamination with pathogenic bacteria is frequently found in the food production environment, and adequate household storage conditions of purchased foods are vital for illness avoidance. Real-time monitoring was used to evaluate bacterial growth in ground horse, beef, and pork meats maintained under various storage conditions. Various levels of E. coli O157:H7 carrying the luxCDABE operon, which allows the cells to emit bioluminescence, were used to inoculate meat samples that were then stored at room temperature for 0.5 day, at 4°C (cold) for 7 or 9 days, or −20°C (frozen) for 9 days. Real-time bioluminescence imaging (BLI) of bacterial growth was used to assess bacterial survival or load. Ground horse meat BLI signals and E. coli levels were dose and time dependent, increasing during room temperature and −20°C storage, but stayed at low levels during 4°C storage. No bacteria survived in the lower level inoculum groups (101 and 103 CFU/g). With an inoculum of 107 CFU/g, pork meats had higher BLI signals than did their beef counterparts, displaying decreased BLI signals during 7 days storage at 4°C. Both meat types had higher BLI signals in the fat area, which was confirmed with isolated fat tissues in the beef meat. Beef lean and fat tissues contrasted with both pork fat and lean tissues, which had significantly higher BLI signals and bacterial levels. BLI appears to be a useful research tool for real-time monitoring of bacterial growth and survival in various stored livestock meats. The dependence of E. coli O157:H7 growth on meat substrate (fat or lean) and storage conditions may be used as part of an effective antibacterial approach for the production of safe ground horse, beef, and pork meats.

Real‐time monitoring of Escherichia coli concentration with planar microwave resonator sensor

2019 ◽  
Vol 61 (11) ◽  
pp. 2534-2539 ◽  
Author(s):  
Sevda Mohammadi ◽  
Rakesh Narang ◽  
Mehdi Mohammadi Ashani ◽  
Hamid Sadabadi ◽  
Amir Sanati‐Nezhad ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Real Time ◽  
Microwave Resonator ◽  
Real Time Monitoring

Ultra-small CoOx/GO catalyst supported on ITO glass obtained by electrochemical post-treatment of a redox-active infinite coordination polymer: a portable reactor for real-time monitoring of catalytic oxidative degradation of colored wastewater

2020 ◽  
Vol 7 (2) ◽  
pp. 554-570 ◽  
Author(s):  
Xinrui You ◽  
Chunyu Huang ◽  
Wei Huang ◽  
Guoyue Shi ◽  
Jingjing Deng ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Real Time ◽  
Oxidative Degradation ◽  
Post Treatment ◽  
Electrochemical Polarization ◽  
Real Time Monitoring ◽  
Redox Active ◽  
Ito Glass ◽  
Colored Wastewater

Ultra-small CoOx/GO on ITO glass obtained by electrochemical polarization of a Co-ICP and its application in catalytic oxidative degradation of colored wastewater.

Impedimetric microbial sensor for real-time monitoring of phage infection of Escherichia coli

2013 ◽  
Vol 47 ◽  
pp. 340-344 ◽  
Author(s):  
Ming Soon Cheng ◽  
Jia Shin Ho ◽  
Suk Hiang Lau ◽  
Vincent T.K. Chow ◽  
Chee-Seng Toh
Keyword(s):  
Escherichia Coli ◽  
Real Time ◽  
Phage Infection ◽  
Real Time Monitoring ◽  
Microbial Sensor
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