8.3.2.Continuous HTST sterilisation HTST(High Temperature Short Time) 30 20 1 C/Co 10 0 0 120 130 140 Sterilisation temp (T,C) Effect of sterilisation temperature on a chemical reaction in a continuous sterilisation.C/Co is the fraction of non-reacted chemical compound.F is the sterilisation time according to eq.8.C/Co was obtained from eq.6 and the temperature dependence of the two reaction rate constants,k,was obtained from the Arrhenius equation(eq.4).Parameters:as for the batch sterilisation,Fig 10.4
8.3.2. Continuous HTST sterilisation HTST( High Temperature Short Time)
8.4.The D-Value and Z-Value log No)=-b log(N) log(N)=log(No)-t 3 2 0 time(t) Heat inactivation curve plotted on 10log basis showing the definition of the D-value
t No D N 1 log( ) = − 8.4. The D-Value and Z-Value