Mathematical Analysis for Growth Depression of Vibrio parahaemolyticus in Shrimp under a High Carbon Dioxide Atmosphere

作者：Makino Yoshio^*; Ito Yuki; Oshita Seiichi; Kawagoe Yoshinori; Kawabuchi Yukie; Sugawara Tatsuya; Hirata Takashi

来源：Food Science and Technology Research, 2011, 17(1): 63-67.

• Vibrio parahaemolyticus
• shrimp
• carbon dioxide
• Gompertz model
• logistic model

Growth depression of Vibrio parahaemolyticus in pink shrimp under a high CO2 atmosphere was studied. A strain was isolated from prawn and identified as V parahaemolyticus. The identified strain was used to inoculate pink shrimp and stored at 20 degrees C under air, N-2, and CO2. The plate count under CO2 16 h after inoculation was significantly lower than those under air and N-2. The plate count under a steady state of CO2 was lower by log 3.6 to log 3.7 than those under air and N-2. The growth of V. parahaemolyticus in/on the shrimp was fitted and simulated using the Gompertz equation and a new logistic model, to determine its growth rate parameters. CO2 reduced the value of the parameter equivalent to maximum plate count.

• 出版日期2011-1