Question

Which one of the following absorbents is NOT used as an ethylene absorber in active packaging of fruits and vegetables?

• A. ( {Potassium permanganate} )
• B. ( {Activated carbon} )
• C. ( {Calcium hydroxide} )
• D. ( {Silica gel} )

Hint:

Ethylene absorbers are crucial in reducing ethylene concentration in the storage environment of fresh produce, thereby delaying ripening and spoilage.

Answer 1

The Correct Option is C

Ethylene absorbers are widely used in the active packaging of fruits and vegetables to slow down ripening and extend shelf life. Common ethylene absorbers include potassium permanganate, which oxidizes ethylene gas, and activated carbon or silica gel impregnated with chemicals to adsorb ethylene effectively. Calcium hydroxide, however, is not used as an ethylene absorber. Instead, it is commonly used for pH regulation or as a desiccant, but it does not have any significant role in ethylene absorption.