RELATIONSHIP BETWEEN TEMPERATURE & GROWTH OF E.COLI 0157:h7
Asked by: munzi-ga
List Price: $5.00
06 Sep 2002 15:06 PDT
Expires: 06 Oct 2002 15:06 PDT
Question ID: 62389
I REQUIRE SCIENTIFIC DATA WHICH ESTABLISHES THE RELATIONSHIP BETWEEN TEMPERATURE AND GROWTH OF E.COLI 0157:h7. I NEED TO DETERMINE WHAT IS A SAFE TEMPERATURE FOR STORING MEAT.
Re: RELATIONSHIP BETWEEN TEMPERATURE & GROWTH OF E.COLI 0157:h7
Answered By: actualwolf-ga on 07 Sep 2002 18:38 PDT
Munzi: Preventing the spread of all types of verocytotoxin-producing E.coli (VTEC) meat depends not so much on the temperature at which you store it, but rather the temperature at which you cook it. According to the Mustafa Khammash at the University of California at Santa Barbara the ideal temperature for the growth of E.coli is 37 Celsius. You can check out a Power Point Presentation of his study of the Feedback Regulation of Bacterial Stress Response at: www.engineering.ucsb.edu/~mdsymp/ppt/khammash.ppt There's a chart on the fourth page down. According to the Insitute of Food Science and Technology temperatures below -5 degrees Celsius may retard the growth of E.Coli, but the organism will survive. From http://www.ifst.org/hottop1.htm "Refrigeration below 5 deg C is thought to prevent growth of VTEC and is an important hygiene measure. However, any organisms present are likely to survive at these temperatures perhaps for several weeks." The key to killing E.coli in meat is to thoroughly cook it at a temperature of 68.3 Celsius (approx. 160 F) or higher, for at least two minutes. hope this helps, -actualwolf Search Strategy: e.coli +temperature +growth Sites Used: Insitute of Food Science and Technology http://www.ifst.org University of California at Santa Barbara http://www.ucsb.edu
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