Comparison between dry heat sterilization and moist heat sterilization?

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Mechanism of killing by dry heat
  • Dry heat kills the organisms by destructive oxidation of essential cell constituents
  • Killing of the most resistant spores by dry heat requires a temperature of about 160 °C for 60 minutes
  • Dry heat is employed for glassware; syringes, metal instruments and paper wrapped goods, which are not spoiled by high temperatures.
  • It is also used for anhydrous fats, oils and powders that are impermeable to moisture.

Mechanism of killing by moist heat
  • Moist heat kills the organisms by coagulating and denaturing their enzymes and structural protein.
  • Sterilization by moist heat of the most resistant spores generally requires 121 °C for 15-30 minutes.
  • Moist heat is used for the sterilization of culture media, and all other materials through which steam can penetrate
  • Moist heat is more effective than dry heat
  • Sterilization can be done at lower temperatures in a given time at a shorter duration at the same temperature.
  • upon heating wet proteins release free -sh groups and form smaller peptide chains which in turn form new complexes different from the orignal protein molecules
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What is the definition of dry heat sterilization?

Dry Heat Sterilization by Devansh . Dry-heat sterilization is generally a less complicated process than steam sterilization; it is, however, relatively slow and requires hi

Does heat make you sterile?

The production of healthy sperm requires a cool environment, about 3 or 4 degrees C lower than core temperature. Thus keeping the testicles warm will result in malformed batch
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Is lyophilization a method of dry heat sterilization?

If we limit our discussion to the enveloped viruses HIV, HCV and HBV, then lyophilization is a sterilization method as explained in my recent article [Cell Tissue Bank (2011)
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What is difference between dry heat and moist heat?

Dry heat is the absolute substance temperature without accounting for the modulating effects of water vapor in the substance. Moist heat is the relative substance temperature