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Animal fat classification
Can be divided into terrestrial warm-blooded animals and poultry fats:
Be like butter, sheep fat, lard to wait, it is solid commonly, its main component is the glycerol triacide of palmitic acid, stearic acid.
Marine mammals and fish oils, such as whale oil, fish oil, generally liquid, the main components in addition to nutmeg acid, palmose acid, stearic acid, oleic acid, but also contains 22~24 carbon and 4~6 double bond unsaturated acid and 10~14 carbon unsaturated acid!
The use of animal fats
Mainly for consumption, such as pork fat, beef fat, sheep fat, etc. Also widely used in the manufacture of hardening oil, soap, glycerin, lubricating oil and leather industry and drugs; Fish oil is a raw material for preparing coatings. By boiling it.
The fats and oils of land animals are mainly concentrated in adipose tissue and viscera, such as pig fat, cow fat, sheep fat, etc. There is also an emulsifying state in the milk of mammals, such as butter. There are also small amounts in the bone marrow, such as bone oil. The fatty acids comprising triglycerides are mainly oleic acid palmitic acid and stearic acid. It contains more saturated acids than vegetable oils. Most of the oils in fish are found in the liver, such as cod liver oil. Most of the oil of sea animals, such as dolphin oil, is found under the skin.
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