FOOD TECHNOLOGY

Detailed explanation-1: -Preservatives play an essential role in many products used every day to help prevent the growth of harmful microorganisms and to protect products from contamination or spoilage. They are made of natural chemicals such as salt or alcohol, and they can also be man-made, or synthetic chemicals.

Detailed explanation-2: -Salt’s Role in the Prevention of Microbial Growth Salt is effective as a preservative because it reduces the water activity of foods. The water activity of a food is the amount of unbound water available for microbial growth and chemical reactions.

Detailed explanation-3: -Chemical Method Preservation by salt is known as salting. Salting helps to preserve fruits for a long term. Meats and fishes can also be preserved by salting. Other synthetic preservatives include vinegar, sodium benzoate, sodium metabisulphite, etc.

Detailed explanation-4: -3.1 Benzoic acid in the form of its sodium salt, constitutes one of the most common chemical food preservative. Sodium benzoate is a common preservative in acid or acidified foods such as fruit juices, syrups, jams and jellies, sauerkraut, pickles, preserves, fruit cocktails, etc.