preservation
/ˌprɛzɚˈveɪʃən/
noun
[noncount] the act of preserving something: such as
the act of keeping something in its original state or in good condition - often + of
the act of keeping something safe from harm or loss
the act of using a particular treatment on a food so that it can be eaten in the future
the degree to which something is kept safe from harm or ruin