Table 2.

Comparison of models of hydrothermal inactivation of E. coli at 250°C

ModelLog N0Log NRESPara3aPara4Para5Para6MSSERMSER2Reference
Log linearb−1.15kmax = 4.780.83480.91370.82667
Log linear + tailc−0.18−5.54kmax = 9.100.04290.20700.992418
Biphasicd−0.14kmax1 = 9.40kmax2 = 0.90f = 0.999970.03540.18820.994710
Weibulle0.23δ = 0.07P = 0.510.32700.57180.941827
Weibull + tailf0.02−5.61δ = 0.19P = 0.840.03220.17950.99522
Double Weibullg0.02d1 = 0.19P = 0.86d2 = 4.81α = 5.080.02660.16300.996114
  • a Para3 to Para6, parameters 3 to 6, respectively.

  • b N/N0=ekmax · t.

  • c N=(N0Nresekmax · t+Nres.

  • d N/N0=f×ekmax1 · t+(1−fekmax2 · t.

  • e N/N0=10−(t/δ)p.

  • f N=(N0Nres)×10−(t/δ)p+Nres.

  • g gN=N0(1+10α)[10(t/δ1)p+α+10(t/δ2)p].