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SSC MTS 2019 PYQ — Question 42

SSC MTS Previous Year - 07 August 2019 - Shift 1 • General Awareness • Q42

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Which of the following gas causes rancidity in food product?

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Correct answer: A

Explanation

Correct Answer is option 1 i.e. Oxygen

Rancidity:
  • Rancidity is the oxidation of fats that is caused by hydration (water), oxidation (oxygen), metallic atoms or microbes.
  • When the substance containing oils and fats are exposed to air they get oxidised and become rancid due to which their smell, taste and colour change.
  • For example when a when butter is kept open for a long time then its smell and taste gets changed.
  • Oxidative rancidity can be prevented by light-proof packaging, oxygen-free atmosphere (air-tight containers) and by the addition of antioxidants.