What foods contain odd chain fatty acids?

Dietary odd-chain saturated fatty acids (OCFAs) are present in trace levels in dairy fat and some fish and plants.

What products are formed from the oxidation of odd numbered fatty acids?

Oxidation of Odd-Chain Fatty Acids Oxidation of fatty acids with odd numbers of carbons ultimately produces an intermediate with three carbons called propionyl-CoA, which cannot be oxidized further in the beta-oxidation pathway.

What food is a main source of long chain fatty acids?

Although fish is the main source of LC-PUFAs, there are several limitations in using fish oil as a source of supply of these essential fatty acids.

How are odd chain fatty acids made?

In addition, odd chain fatty acids can be synthesized using propionyl CoA as the primer molecule in place of acetyl CoA and as products of even chain length fatty acids by alpha-oxidation. Propionyl CoA can also be carboxylated to D-methylmalonyl CoA by the enzyme propionyl CoA carboxylase (Fig. 14.8).

What happens to odd chain fatty acids?

Metabolism. Oxidation of odd-carbon fatty acids requires three additional enzymes. This enzyme is responsible for carboxylating the α-carbon of a Propionyl-CoA to produce D-methylmalonyl-CoA. After this, methylmalonyl-CoA epimerase carries out an isomerization reaction.

Where does oxidation of odd chain fatty acids occur?

Fatty acid β-oxidation can also occur in peroxisomes. In animals, peroxisomes are believed to be important in the initial breakdown of very-long-chain fatty acids and methyl branched fatty acids [11]. The enzymes involved in fatty acid oxidation in peroxisomes are different from mitochondria.

What is special about odd chain fatty acids?

Odd-chain fatty acids are those fatty acids that contain an odd number of carbon atoms. Most fatty acids are even chain, e.g. palmitic (C16) and stearic (C18). On a molecular level, the odd-chain fatty acids are biosynthesized and metabolized slightly differently from the even-chained relatives.