Any of three glyceryl esters of butyric acid found naturally in butter.
- Chemical formula: C3H5(C3H4O2)3.
- When combined with butyrin and water, it made a cheap and more-or-less palatable butter substitute.
- In some fats - e. g., butter - part of the fatty acid is replaced by lower fatty acids - e. g., butyric, or in porpoise oil, by valerianic acid - both occurring as glycerin esters, butyrin, valerin, respectively.
- Besides, they possess good storage stability, can be dissolved in low M.W ketones (acetone, butanone) and esters (acetic ether, acetic butyrin).
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