Question

preservatives and Their types with example

Answer 1

chemicals that helps to preserve anything.ex-
Benzoates
Nitrites
Sulphites
Sorpates.
thank you . Different types of preservatives are - artificial preservatives ex-
antioxidant etc.

Answer 2

food preservation essentially means longer relation of the nutritive value of preseitive method

some methods are

1 ) dehydration

2) by adding salt and sugar

3) refrigeration and freezing

4) pasteuration

5) smoking

6) preservation by chemical

7) heating

8) canning