Nutrients tend to get lost in these preparations due to heat and oxidation. When the cells of the food are ruptured in any way, shape, and for, like how they tend to be during prepping or cooking, there will be loss of nutrients.
The general rule of thumb is that putting some nutrients through heat will destroy certain nutrients. Many people believe that raw vegetables are packed with more nutrition than cooked vegetables, but it depends on the type of nutrient. In most cases, cooking actually destroys some harmful anti-nutrients, so it's better to have a balance of raw vs. cooked.
Yes. While some nurients may be lost in preserving, most are still there. Preserving could be canning, freezing, or drying foods.
enriched
He preserved food by pasteurization .
Food in which nutrients lost during processing are added back into is food fortification. Skim milk is an example because it has had the fat removed and then has Vitamin D and Vitamin A added back to it.
All fruits and vegetables can be preserved by canning.
Generally, the longer you cook most foods, the more nutrients are lost. So, in many cases, burned food would be less healthy.
Storing food is not a function of nutrients because nutrients are derived from food.
food preservation is a preserved food
In 1960 people preserved food by freezing it. Food was also preserved by home canning or pickling methods and storage.
Food is preserved by curing with salt, smoking, pickling, drying, or canning.
Perhaps - replenish the nutrients.
It spoils.