Q. Show the techniques of preservation?
The various methods can be used for preservation of foods. Some of the common methods employed to preserve foods are summarized herewith:
• Heat (blanching, pasteurization, sterilization...)
• Cold (chilling, freezing etc.)
• Drying (partial or fully)
• Acid (fermentation, addition)
• Sugar and salt (addition- osmotic effect)
• Smoke (heat + smoke, formaldehyde and others)
• Atmospheric conditions (O2 or CO2)
• Radiation (X-ray, UV, microwaves, ionizing)
• Chemicals (preservatives)