Autolysis (biology)
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Autolysis is the process by which a cell self-destructs. It is uncommon in adult organisms and usually occurs in injured cells or dying tissue. Autolysis occurs when a lysosome allows the digestive enzymes out of its membranes. The cell then, in effect, digests itself. The effect of autolysis is usually lessened in organelles separated from a cell using cell fractionation, usually by keeping the organelle in the same conditions it was in before removal; usually keeping organelles as 'ice-cold isotonic buffers'.
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In the food industry, the process of autolysis (auto-self; lysis-splitting) involves killing the yeast and encouraging the breakdown of the cells by enzymes is used to give different flavors. For yeast extract, this process is triggered by the addition of salt.
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