Discussion
In which of following processes, glutaraldehyde is used as a sterilizing agent?
Answer: C
Glutaraldehyde is used in cold sterilization.
A 2% alkaline glutaraldehyde solution kills bacteria, spores and viruses by cross-linking proteins, at room temperature. It is used to sterilise heat-sensitive instruments such as endoscopes, which cannot be autoclaved; this chemical sterilisation without heat is called cold sterilization.
Pasteurization and autoclaving use moist heat, and incineration uses burning; none relies on glutaraldehyde.
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