2011 Annual Report
In collaboration with scientists at Kangwon University, in Kangwon South Korea, the acid resistance of 50 pathogenic Escherichia coli (E. coli) strains was investigated. Under this cooperative research agreement we have previously shipped 50 strains to Kangwon University. The survival of these strains in acid solutions typical of acidified vegetables was found to vary with the source of isolation of the bacterial strain. Strains from food sources were found to be less acid resistant than strains isolated from cattle feces or meat. These unexpected results will be used to support further research to investigate how pathogenic E. coli strains survive in acid and acidified foods.
Authorized Department Officer's Designated Representative (ADODR) Monitoring Activities: ADODR met with Cooperator regularly regarding sampling of sweetpotatoes from the storage facility and selection of potential clones for evaluation on quality of fried products. Research progress has been monitored by email and telephone conversations.