Food Spoilage

• Biology
• Secondary Education
• Age 13

Microorganism

Food Spoilage and Preservation

While returning from the school, Bina ate chaat from a street hawker. When she reached home, she felt ill and complained of stomach ache. What could be the reason?

Rita notices the milk she poured on her breakfast cereal is lumpy and tastes sour. What inference should Rita make?

Heating of milk to 70 degrees and suddenly cooling it

1. Sterilization
2. Pasteurization
3. Evaporation
4. Condensation

1. Refrigeration
2. Drying
3. Freezing
4. Condensing

Jams, Jellies and Squashes are preserved by

1. Drying
2. Dehydrating
3. Salt
4. sugar

Two common chemical preservatives:

1. Sodium benzoate
2. Sodium Metabisulphite
3. Carbon dioxide
4. Calcium Carbonate