Question

Ca(OH)2 and NaOH acts as _______ scavenging system.

(a) oxygen

(b) carbon Dioxide

(c) ethylene

(d) moisture

This question was posed to me during an interview for a job.

My enquiry is from Active Packaging in Food in division Modern Packaging Techniques of Food Packaging Technology

Answer 1

Right answer is (b) carbon Dioxide

For explanation: Ca(OH)2 and NaOH acts as carbon dioxide scavenging system. Potassium hydroxide, calcium oxide and silica gel also serves as CO2 scavengers. It is generally used in dehydrated poultry products, roasted coffee, beef jerky, etc.