What are the following ? Give one example of each. (3 marks)
(i) Sweetening agents
(ii) Food preservatives
Related Videos :-
(i) Sweetening agents : Those chemical substances which are sweet in taste but do not add any
calories to our body are called artificial sweetening agents. These are excreted as such through
Example : Saccharin, aspartame etc.
(ii) Food preservatives : They are used to prevent spoilage of food due to microbial growth.
Example : Table salt, vegetable oils, sodium benzoate etc.
(iii) Antibiotics : Those chemical substances which are produced completely or partially by
chemical synthesis in low concentration and either kill or inhibit the growth of microorganisms
by intervening in their metabolic processes, are known as antibiotics.
Examples : Tetracycline, Vancomycin.