Attachment and colonization by Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica subsp. enterica serovar Typhimurium, and Staphylococcus aureus on stone fruit surfaces and Survival through a simulated commercial export chain.

摘要: The ability of the foodborne pathogens Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica subsp. serovar Typhimurium, and Staphylococcus aureus to attach, colonize, survive on stone fruit surfaces was investigated. Fifty microliters bacterial suspension spot inoculated onto sterile intact fructoplane whole peaches plums. Minimum time required for initial adhesion attachment recorded different surface contact times. Surface colonization patterns four survival under simulated commercial export conditions also were evaluated. L. monocytogenes Typhimurium attached immediately surfaces. E. O157:H7 S. visibly after 30 s 1 h, respectively, direct exposure. Holding freshly harvested at 0.5 degrees C simulate cold storage significantly lowered titer plums titers fruit. a low inoculum level high levels did not chain that exceeded minimum infectious dose. However, able when an artificially level. In this case, final end supply higher than laboratory experiment, potential natural contamination unable conditions.