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Can rancidity occur in ready- to eat fresh meals?

放大字體  縮小字體 發布日期:2007-09-17
核心提示:Oxidation of fats, generally known as rancidity, is caused by a biochemical reaction between fats and oxygen. In this process the long-chain fatty acids are degraded and short-chain compounds are formed. One of the reaction products is butyric acid,

Oxidation of fats, generally known as rancidity, is caused by a biochemical reaction between fats and oxygen. In this process the long-chain fatty acids are degraded and short-chain compounds are formed. One of the reaction products is butyric acid, which causes the typical rancid taste.

  Rancidity is dependent on temperature; at low temperatures, as in the refrigerator, the reaction occurs, but at a very low rate. In cooled fresh ready-to-eat meals bacterial spoilage will generally occur before rancidity can be observed.

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