91精品一久久香蕉国产线看_少妇91在线视频_国产一二区精品视频_无码免费在线动漫操逼_欧美一区中文三级片无码在线_日韩熟AV高清无码_久草亚洲香蕉在线播放_免费欧美三级伊人草草网_姓爱AV在线欧美性爱不卡夜

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.