date:Apr 01, 2017
h assistant, began to investigate the persistence and internalization of L. monocytogenes in romaine lettuce, the fastest growing crop in the U.S. in terms of production, export and consumption.
Their research showed L. monocytogenes in romaine lettuce can persist up to 60 days or until the time of harvest. The bacteria could be found throughout the plant tissue, indicating yet another way foodborne pathogens can reach consumers, especially in ready-to-eat foods.
At the Purdue Center for Food