Abstract
The synergistic effect of high hydrostatic pressure (HHP) treatment and food additives (FAs) on the inactivation of Salmonella enteritidis was investigated. At 1% concentrations, all of the FAs tested showed significant synergistic effects, and 9 of 30 FAs showed strong synergistic effects. Citric acid, adipic acid, C8-sugarester, C10-sugarester, tannin, nisin, wasabi extract, ε-polylysine, and protamine each showed a strong inactivation effect when administered alone at the 1% level. In the HHP treatment at 250 MPa for 30 min, the minimum effective concentrations of C8-sugarester, C10-sugarester, and protamine were 0.25, 0.125, and 0.06%, respectively. These results indicate that some FAs are useful for increasing the inactivation ratio of S. enteritidis in HHP treatment.
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