Food Preservation Methods
Methods of food preservation in food industry, Based on the mode of action,
(i) slowing down or inhibiting chemical deterioration and microbial growth,
(ii) directly inactivating bacteria, yeasts, molds, or enzymes, and
(iii) avoiding recontamination before and after processing
Difficult to make a clear distinction between inhibition and inactivation.
Example, preservation by drying and freezing.
Freezing and Drying is to control the growth of microorganisms during storage,
There is also destruction of microorganisms.
Freezing causes the apparent death of 10-60% of the viable microbial population and this gradually increases during storage