Preservatives

Definition

Preservatives are substances added to food products to prevent spoilage and extend shelf life.

Scientific / Technical Definition

Preservatives are chemical compounds that inhibit the growth of bacteria, molds, and yeast, or that cause oxidative degradation of food substances, thereby prolonging the edibility of food items and maintaining their nutritional quality.

Benefits

• Prevent spoilage by inhibiting the growth of microorganisms.
• Extend the shelf life of food products.
• Help in maintaining food safety by reducing the risk of foodborne illnesses.
• Maintain the nutritional quality of food by preventing degradation.

Examples

• Sodium benzoate, found in acidic foods like carbonated drinks.
• Sorbic acid, used in cheeses and baked goods.
• Nitrates and nitrites, found in processed meats.

Additional Information

• knownIssues: Some preservatives, such as nitrates, can be converted into potentially harmful compounds in the body and may be linked with certain health issues.

Related Terms

• Antioxidants
• Food Additives
• Processed Foods
• Shelf Life

References

• Preservatives in Food: Finding a Balance
• Food Preservatives - A Review