Why cant oils containing PUFAs be used in biodiesel production?

Question

Why cant oils containing PUFAs be used in biodiesel production?

Answer 1

PUFAs are long-chain fatty acids containing two or more double bonds.

They provide structural & functional characteristics, and are involved in a wide range of biological components including membranes (in phospholipids).

Equally important PUFAs serve as precursors for conversion into metabolites that regulate critical biological functions.

Biodiesel is a non-petroleum and environmentally-friendly alternative to petroleum-based diesel fuel and not fatty acid.

PUFA is fatty acid it is not used!

Answer 2

Just about any organic substance can be processed into a diesel substitute.  First generation biodiesel is typically a mix of fatty acid methyl esters and its production from straight vegetable oil produces glycerine as a first by-product.  However, the glycerine could be further processed itself as could PUFAs to produce a mixture which would run a diesel engine.  Second and third generation biodiesels will be synthesised from organic feedstock, often first split down to syngas before starting the fischer-tropsch synthesis up to F-T wax then reducing this to get the diesel like properties desired.  Straight chain molecules burn cleaner and with higher power output than aromatic ring molecules and F-T allows you to produce almost any mix of molecules to order.