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Introduction to Chemistry — CHEMISTRY STD 6 — Question

ICSE BoardEnglish MediumSTD 6CHEMISTRYIntroduction to Chemistry3 Marks
Question
Differentiate between the terms food preservatives and food processing with appropriate examples.
✓

Answer

Food preservatives – are substances or chemicals – added to food or beverages to
1. Prevent decomposition by bacteria or microbes.
2. Reduce the risk of foodborne infections.
3. Preserve the nutritional quality of food.
Preservatives Food items
Benzoic acid Jams, pickles, carbonated drinks.
Nitrates Meat products
Sulphur compounds Beverages, wines, etc

Food processing mostly involves both packaging and preservation.
Food processing is performed to turn food into something that is more palatable and convenient to eat.
Examples: cakes and biscuits

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