What are food preservatives? Explain how sugar and oil preserve the food.
Answers
Answer:
(ii) Sugar : Jams, jellies and squashes are preserved by sugar. Sugar reduces the moisture contents which inhibits the growth of bacteria which spoil food. (iii) Oil : Edible oils are used as preservatives in vegetables and pickles. (iv) Vinegar: It is used to preserve fruits, vegetables, fish, meat and pickles.
Answer:
Food preservatives are an essential constituent of processed foods serving the purpose of extending the shelf life of products and preventing deterioration.
Explanation:
The value of sugar in food preservation is dependent on the amount of sugar used and adding too little sugar to a food will still enable the development of microorganisms. This is seen in the production of jams and jellies where adding too little sugar promotes the growth of mold and yeast.
Oil. Oil is a natural food preservative as it can be used in several foods to preserve.