Condition of oilmeal and control of Salmonella using organic acid in an olimeal manufacturing plant
2005
Morita, T.(Nisshin Oillio Group Ltd., Yokosuka, Kanagawa (Japan). Research Lab.) | Iida, T. | Kamata, S.
Although organic acid has been used for sterilization at many domestic oilmeal plants in recent years for the control of Salmonella, the effect is not clear. In order to clarify the sterilization effect by organic acid in contaminated oilmeal, the influence of temperature, relative humidity and acid concentration were evaluated. The following results were obtained. 1) Temperature of oilmeal in the manufacturing process and during storage varied greatly location. 2) The sterilization effect of organic acid tended to be high in storage at high temperatures and high relative humidity. 3) There was almost no sterilization effect of organic acid under conditions of low temperature or low relative humidity. 4) Sterilization methods that can effectively sterilize oilmeal for a short period of time are required for use in oilmeal plants, and it was demonstrated that in two days, the optimal conditions are 45 deg C with 1 w/w % acid or 60 deg C without acid.
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