Lesson 3: Ethanol and Sterilisation

Ethanol has very strong germicidal characteristics.

  • They denature proteins inside pathogens.
  • Ethanol also dissolves the cell wall.
  • It is known to be effective against most bacteria, fungi and viruses.

 

An ethanol percentage of 50-80% destroys the cell wall and/or membrane of bacteria by denaturing their proteins.