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CaO (quicklime) is an example of _____________

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CaO (quicklime) is an example of _____________

(a) ethylene scavengers

(b) moisture absorbers

(c) flavor and odor absorbers

(d) temperature-controlled packages

This question was posed to me in an online interview.

This intriguing question comes from Active Packaging in Food topic in portion Modern Packaging Techniques of Food Packaging Technology

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Correct choice is (d) temperature-controlled packages

Best explanation: CaO (quicklime) is an example of temperature-controlled packages. Temperature-controlled active packages generally include self-heating and self-cooling systems. An exothermic chemical reaction between CaO (quicklime) and a water based solution generates heat. Self- heating packages are commercially available for coffee, tea, and ready-to-eat meals.

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