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Concept Maps

Preservation of Food — Concept Maps

NIOS · Class 10 · Home Science

4 concept maps of Preservation of Food for NIOS Class 10 Home Science, each also written out as a text outline.

45 questions34 flashcards3 formulas & key relations5 concepts

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4 Concept Maps

Food Preservation Overview - Complete Concept Map

Food Preservation Overview - Complete Concept Map

The map in words

  • Food Preservation
    • Spoilage Causes
      • Microorganisms
        • Bacteria
        • Fungi
        • Yeasts
      • Enzymes
        • Ripening
        • Decay
        • Browning
      • Pests
        • Insects
        • Worms
        • Rats
    • Preservation Methods
      • Low Temperature
        • Refrigeration 4-7C
        • Freezing -18C
        • Cold Storage 10-40C
      • High Temperature
        • Pasteurization 63-72C
        • Sterilization 121C
        • Boiling 100C
      • Dehydration
        • Sun Drying
        • Blanching Process
        • Storage Conditions
      • Preservatives
        • Natural
          • Salt
          • Sugar
          • Acid
          • Oil
          • Spices
        • Chemical
          • Sodium Benzoate
          • Potassium Metabisulphite
          • Citric Acid
    • Food Classification
      • Non-Perishable
        • Months to Years
        • Rice Pulses Sugar
      • Semi-Perishable
        • Weeks to Months
        • Potatoes Eggs Biscuits
      • Perishable
        • Days to Weeks
        • Milk Vegetables Fruits
    • Principle
      • Kill Microorganisms
        • Heat Treatment
      • Prevent Microorganisms
        • Temperature Control
        • Moisture Removal
        • Chemical Addition
      • Stop Enzyme Action
        • Blanching
        • Low Temperature
        • Heat

Mind map showing the different signs and types of food spoilage that students should recognize

Mind map showing the different signs and types of food spoilage that students should recognize

The map in words

  • Signs of Food Spoilage
    • Visual Changes
      • Mould growth
      • Discoloration
      • Soft spots
    • Chemical Changes
      • Bad smell
      • Fermentation
      • Bubbles
    • Physical Damage
      • Insect holes
      • Worm damage
      • Decay

Flowchart showing the three main causes of food spoilage and how they lead to the need for preservation methods

Flowchart showing the three main causes of food spoilage and how they lead to the need for preservation methods

The map in words

  • Food Spoilage Causes
    • Micro-organisms
      • Need: Moisture, Temperature, Air, Food
        • Prevention
      • Results: Growth and Decay
    • Enzymes
      • Cause: Ripening and Over-ripening
    • Insects and Rodents
      • Make: Holes and Damage

Food preservation

Food preservation

The map in words

  • Food preservation
    • Food spoilage
    • Food storage
    • Causes of spoilage
    • Principles of preservation
    • Low temperature methods
    • High temperature methods
    • Preservatives
    • Dehydration

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Frequently Asked Questions

What are the important topics in Preservation of Food for NIOS Class 10 Home Science?
Key topics in Preservation of Food include Food Spoilage and Shelf Life, Principles and Methods of Food Preservation, Preservatives and Dehydration, Hygiene and Safe Handling of Stored Food. Study these first, then practise questions on each for the NIOS Class 10 board exam.
What do the concept maps for Preservation of Food show?
The 4 maps show how the ideas in Preservation of Food connect: Food Preservation Overview - Complete Concept Map; Mind map showing the different signs and types of food spoilage that students should recognize. Each map is also written out as an outline on this page.
How should I revise Preservation of Food for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 45 practice questions on Preservation of Food. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Preservation of Food

All NIOS Class 10 Home Science Concept Maps

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