Inactivation Kinetics of Vibrio parahaemolyticus on Sand Shrimp (Metapenaeus ensis) by Cinnamaldehyde at 4°C

Figure 1

The growth of V. parahaemolyticus was estimated by culture-based enumeration immediately before and after inoculation with an initial population of 4.5 log CFU/ml, or 2.5 mg/ml cinnamaldehyde treatment, and at intervals throughout 26 days of storage. Growth curves were constructed by plotting log CFU/ml against time; Figure 1(a) for shrimp meat, Figure 1(b) for shrimp shell, Figure 1(c) for whole shrimp, Figure 1(d) for shrimp meat with cinnamaldehyde treatment, Figure 1(e) for shrimp shell with cinnamaldehyde treatment, and Figure 1(f) for whole shrimp with cinnamaldehyde treatment. Colony forming units were quantified with total bacterial count on NA (−) and V. parahaemolyticus (+) on TCBS. Bars represent the standard deviation of three independent samples.

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