What are common additives and preservation used in food preservation?

at times salt can be used(:

Yes, ethyl alcohol (95% grain alcohol) is commonly used in herbal extracts not just as a solvent, but to prevent molds and bacteria from forming. In the case of specific foods, I'm unaware of any,...

-vacuum packing -heating -freezing -cooling -boiling -waxing -smoking -drying -bottling and canning -

We do food preservation to extend the life of some food so we can eat it at a time when fresh food is not available.

Food Preservation is the protection of perishable foods from deterioration by removing conditions necessary for growth. preservation comes in general, in two types: packaging and alternative...