Bio-Based Production of Non-Straight-Chain and Oxygenated Fatty Acids for Fuels and More
Fatty acids generally can be classified as straight-chain or non-straight-chain. Non-straight-chain fatty acids are less abundant and highly valued in dietary supplements, cosmetics, pharmaceuticals, fuel additives, specialty chemicals and many other products. At present there is no process for producing non-straight-chain fatty acids at commercially relevant levels. The identification of genes needed to synthesize these compounds in bacteria is one solution to producing moderate to large quantities of material.
UW–Madison researchers have identified several enzymes in the bacterium Rhodobacter sphaeroides that can be purified to produce non-straight-chain fatty acids in vitro or expressed in genetically modified microorganisms including E. coli for synthesis in vivo. Strains may be ‘fine-tuned’ to produce a specific type of non-straight-chain fatty acid (e.g., furan-containing) by expressing, overexpressing or deleting the enzymes in various combinations.
- New method for achieving high quantities of valuable fatty acids
- Bio-based production of non-straight-chain fatty acids including furan-containing fatty acids, branched-chain fatty acids and cyclic fatty acids
- These compounds support a variety of end applications such as biofuels, fuel precursors or oxygenated fuel additives, cardio-protective health supplements, antioxidants, stabilizers and chemical feedstocks.
The researchers have produced furan-containing fatty acids (FFA) and methylated unsaturated fatty acids (M-UFA) in vivo using modified R. sphaeroides and E. coli.
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