About food preservation, principles of food preservation and advantages of food preservation

1. BY: MALIHA FIRDOUS

2. FOOD PRESERVATION
FOOD PRESERVATION IS A
PROCESS THROUGH WHICH
PHYSICAL OR CHEMICAL AGENTS
ARE USED TO PREVENT
MICROBIAL SPOILAGE OF FOOD.

3. PRINCIPLES OF FOOD PRESERVATION
INHIBTION PRINCIPLE
KILLING PRINCIPLE

4. METHODS EMPLOYED TO ACHIEVE
INHIBITING PRINCIPLE
REDUCTION IN PH
USE OF PRESERVATIVES
USE OF LOW TEMPERATURE

5. aMETHODS EMPLOYED TO ACHIEVE
KILLING PRINCIPLE
HEAT TREATMENT
IRRADIATION
USES OF GASES
PASTEURIZATION

6. ADVANTAGES OF FOOD PRESERVATION
• Prevents the food from spoilage by the action of
enzymes and microorganisms.
• It increases the safe storage period of food
stuffs.
• It increases the availability of out of season food
stuffs.