Processed Food Deterioration
The principal mechanisms involved in the deterioration of processed foods are as
1. Microbiological spoilage sometimes accompanied by pathogen development.
2. Chemical and enzymatic activity causing lipid breakdown, color, odor, flavor, and texture changes
3. Moisture and/or other vapor migration producing changes in texture, water activity and flavor. Formulation and processing variables which affect these mechanisms and which can be used to control deterioration include: (1) moisture and water activity; (2) pH: (3) heat treatments; (4) emulsifier systems; (5) preservatives and additives; and (6) packaging