The testing of agricultural irrigation water for bacterial pathogens with Michael Casteel, Ph.D., President, Microbial Intelligence Group.
Duration: 44 minutes, 35 seconds.
Previously a Research Microbiologist San Francisco Public Utilities Commission. His responsibilities included biosafety and QA/QC programs.
His research at the Univ. of North Carolina involved the development of methods for the isolation of human enteric pathogens on fruits and vegetables, in water, and in soil followed by detection using PCR and RT-PCR, in-vitro methods the detection of traditional (fecal coliforms; E. coli), microbial indicators in environmental media, and the development of methods for the chemical disinfection of enteric pathogens and microbial indicators on produce and in water.
Dr. Casteel earned his PhD in Environmental health microbiology/ infectious disease epidemiology and a MSPH, Environmental health microbiology at the Univ. of North Carolina at Chapel Hill. He obtained a BSEH from Old Dominion University.
1. Your introduction and background.
2. Why should agricultural irrigation water be tested for bacterial pathogens?
3. Which tests are traditionally performed?
4. What are the governmentally-required tests and reports?
5. Is there a difference between well water, canal water and rention pond water?
6. What products and services does the MICROBIAL INTELLIGENCE GROUP offer?
Michael J. Casteel, Ph.D.
Microbial Intelligence Group, L.L.C.
Enhanced Food Safety--From Ship and Pray to Test and Release with Andy Moreno.
Duration: 7 minutes, 18 seconds.
Traditional Food Production has been described as the "ship and pray" model due to the grab sampling of the finished product with culture testing.
The "Test and Release” mode of agricultural operations requires the surveillance of the entire process during several steps: irrigation water, pre-harvest, post harvest, wash water cycle, and finished products. Should the surveillance program indicate an "alert" to the presence of a bacterial pathogen, then the lot should be withheld from the market. A Test and Release” Surveillance program employs PCR tests to validate production with Statistical Process Control (SPC). This program allows for Periodic Testing of Randomized samples against established upper control limits.