AN222, a 4-page fact sheet by Larry Eubanks, Chad Carr, and Chris Pantaleo, presents the results of a study to determine the growth of generic E. coli and aerobic bacteria as indicators of pathogenic bacteria on beef muscle held at 50°F for eight hours. Includes references. Published by the UF Department of Animal Sciences, November 2009.
http://edis.ifas.ufl.edu/AN222