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COMMON SATURATED AND UNSATURATED FATTY ACID
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Saturated fatty acid
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Common name
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Systematic name
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No. of carbon
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Occurrence
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Formic
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Methanoic
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1
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Involved in 1 'C' metabolism
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Acetic
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Ethanoic
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2
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Major end product of carbohydrate fermentation by rumen microbes
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Propionic
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Propanoic
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3
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End product of carbohydrate fermentation by rumen microbes
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Butyric
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Butanoic
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4
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Present in small quantities in butter. End products of carbohydrate fermentation by rumen microbes
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Valeric
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Pentanoic
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5
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Caproic
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Hexanoic
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6
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Caprylic
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Octanoic
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8
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Present in small amounts in butter and also in plant products
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Capric
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Decanoic
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10
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Lauric
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dodecanoic
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12
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Palm kernel and coconut oils
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Myristic
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Tetradecanoic
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14
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Nutmeg, coconut oils and butter
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Palmitic
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Hexdecanoic
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16
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Common in all animal and plant fats
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Stearic
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Octadecanoic
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18
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Arachidic
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Cicosanoic
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20
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Peanut oil
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Behenic
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Docosanoic
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22
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Seeds
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lignoceric
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Tetracosanoic
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24
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Cerebrosides and peanut oil.
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Unsaturated Fatty acids
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Common Name
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Systematic Name
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No of 'C' atom and position of double bond
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Occurence
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Palmitoleic
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Hexadecenoic
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16:1;9
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In nearly all fats
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Oleic
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Octadecenoic
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18:1;9
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The most common fatty acid present in natural fats
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Linoleic
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Octadecadienoic
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18:2;9,12
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Present in many plant oils including corn, peanut, cottonseed and soybean.
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g - Linolenic
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Octadecatrienoic
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18:3;9,12,15
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Present in some plants
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a - Linolenic
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Octadecatrienoic
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18:3;9,12,15
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Linseed oil
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Arachidonic
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Eicosatetraenoic
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20:4;5,8,11,14
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Found in animal fats and in peanut oil. It is an important component of phospholipids in animals.
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CLA- Conjugated linoleic acid (18:2;9,11) Found in sea fish and milk.
EPA - Eicosapentenoic acid (20:5; 5,8,11,14,17) found in sea fish.
DHA-Docasahexaenoic acid (22:6; 4,7,10,13,16,19) found in sea fish.
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