Beneficial Bacteria Help Control Pathogen in Vegetables
June 5, 2008| |
Biological control of human pathogenic bacteria is now feasible based on the developed and tested method of Ching-Hsing Liao, a microbiologist of the Agricultural Research Service, US Department of Agriculture. Dipping crop produce such as bell pepper in a solution of Pseudomonas fluorescens 2-79 was effective in halting the growth of Salmonella and E. coli O157:H7, the causal pathogen in human food poisoning. Pathogen population which multiply 100,000 times when stored at 680F in untreated peppers are suppressed when they are treated with the bacterial solution. Pf2-79 can also limit the growth of cold-tolerant pathogens as well as the common spoilage bacteria.
Further research is currently focused on the large scale validation and the identification of additional bacterial strains that could be used with Pf 2-79 to further improve the safety and quality of crops.
See details of the research in the press release at: http://www.ars.usda.gov/is/pr/2008/080602.htm
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