7
Which of the following chemical is NOT used for in-package ‘humidity buffering’?
EXPLANATION
Storage Systems, Controlled/Modified Atmosphe
- In-Package Humidity Buffering:
- Humidity-buffering agents (humectants, desiccants) regulate package relative humidity ($85 - 95\%$) to prevent water vapor condensation and decay:
- Inorganic salts (e.g., potassium chloride, $KCl$), sorbitol, xylitol, and bentonite clay.
- Ethoxyquin: A synthetic quinoline antioxidant applied as a drench or dip to prevent superficial scald in stored apples and pears; it possesses zero humidity-buffering properties.
- Correct Option: Option 1 (Ethoxyguin).
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