What are food preservatives?

Food preservatives are substances added to food to help prevent spoilage, decay, and bacterial growth. They are commonly used in the food industry to extend the shelf life of food products, maintain their freshness, and ensure their safety for consumption. Some common types of food preservatives include:

1. Antimicrobials: These are substances that inhibit or kill bacteria, yeasts, and molds that can cause spoilage and foodborne illnesses. Examples include vinegar, citric acid, and sodium benzoate.

2. Antioxidants: These are substances that prevent the oxidation of fats and oils, which can lead to rancidity and spoilage. Examples include vitamin E, vitamin C, and BHA (butylated hydroxyanisole).

3. Enzyme inhibitors: These are substances that prevent enzymes from breaking down food, which can cause spoilage and discoloration. Examples include sodium metabisulfite and potassium sorbate.

4. Chelating agents: These are substances that bind with metal ions, which can promote spoilage and discoloration in food. Examples include citric acid and EDTA (ethylenediaminetetraacetic acid).

While food preservatives play an important role in ensuring the safety and quality of our food supply, some people may have allergies or sensitivities to certain preservatives. It is important to read food labels carefully and consult with a healthcare professional if you have concerns about consuming certain types of food preservatives.