Skip to main content

Table 1 The transition temperature and the coefficient of linear expansion of different bacteria, yeast, and plastic materials

From: With respect to coefficient of linear thermal expansion, bacterial vegetative cells and spores resemble plastics and metals, respectively

Bacteria, yeast, and plastic materials Transition temperatureTg(°C) Coefficient of linear expansion (×10-6/°C)
Vegetative cells   
  S. aureus 58 ± 0.7 190 ± 10.5
  E. coli 48 ± 0.5 360 ± 13.5
  B. subtilis 71 ± 1.8 105 ± 7.5
  P. aeruginosa 56 ± 0.9 230 ± 16.5
  Saccharomyces pastorianus 54 ± 1.2 280 ± 12.5
Spores   
  G. stearothermophillus 172 ± 1.2 8 ± 0.3
  B. coagulans 131 ± 2.0 11 ± 0.2
  B. subtilis 125 ± 2.5 14 ± 0.6
  B. licheniformis 107 ± 1.1 19 ± 0.5
  B. megaterium 113 ± 0.9 18 ± 0.5
  T. mathranii 239 ± 6.1 5 ± 0.2
  M. thermoacetica 289 ± 6.7 4 ± 0.3
Plastic materials   
  PCL 55 122 ± 3.5
  PE 116 102 ± 7.5
  PET 235 70 ± 5.5
  Nylon 256 65 ± 4.5
  1. Number of measured samples = 20.
  2. PCL: Polycaprolactone, PE: Polyethylene, PET: Polyethylene terephtalate.