Preservation (of Latin. conservare, "received, retain ") are the durable making of articles, in particular from such from biologically degradable substances existing like animals and plants, as well as parts of and to products of them. The preservation prevents and/or retards in physical or chemical way decay processes, which are caused by drainage or swelling, oxidation, enzyme reactions or micro organisms such as mould and yeast mushrooms or rot bacteria.

Food

More jeher the preservation of food is from particularly great importance since.

Depending upon the too preserving article different procedures are used like a drying, a smoking and a thickening, a salts or a sugars as well as soaking with preserving working substances, e.g. inserting into alcohol or vinegar, the a acidifying by as controlled bacterial transformation, as well as Luftabschluss with following sterilization (a-cook). Newer preservation methods are chilling and the irradiation. Since the 19ten century knows one the physical protection of the can.

Nichtlebensmittel

With articles, which are not intended for the consumption, still further procedures application e.g. find like a soaking with plastic with wood, sandstone and A procedure for the preservation of biological fabric is called Plastination.

Genes

In the genetics by preservation of the preservation degrees of a gene in the process of the evolution, thus the similarity and relationship about genes among themselves one understands. There the term means not the durable making or preservation of a substance, but the preservation of information.

Articles in category "Preservation"

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