Coupling Fatty Acids by Ketonic Decarboxylation Using Solid Catalysts for the Direct Production of Diesel, Lubricants, and Chemicals

ChemSusChem ◽  
2008 ◽  
Vol 1 (8-9) ◽  
pp. 739-741 ◽  
Author(s):  
Avelino Corma ◽  
Michael Renz ◽  
Colin Schaverien
Keyword(s):  
Fatty Acids ◽  
Direct Production ◽  
Solid Catalysts

Fatty acid synthesis: from CO2 to functional genomics

2000 ◽  
Vol 28 (6) ◽  
pp. 567-574 ◽  
Author(s):  
J. Ohlrogge ◽  
M. Pollard ◽  
X. Bao ◽  
M. Focke ◽  
T. Girke ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Synthesis ◽  
Regulatory Networks ◽  
Fatty Acid Synthase ◽  
Expression Patterns ◽  
Acid Synthesis ◽  
Acetyl Coa ◽  
Specific Expression ◽  
Direct Production

For over 25 years there has been uncertainty over the pathway from CO2, to acetyl-CoA in chloroplasts. On the one hand, free acetate is the most effective substrate for fatty acid synthesis by isolated chloroplasts, and free acetate concentrations reported in leaf tissue (0.1–1 mM) appear adequate to saturate fatty acid synthase. On the other hand, a clear mechanism to generate sufficient free acetate for fatty acid synthesis is not established and direct production of acetyl-CoA from pyruvate by a plastid pyruvate dehydrogenase seems a more simple and direct path. We have re-examined this question and attempted to distinguish between the alternatives. The kinetics of 13CO2 and 14CO2 movement into fatty acids and the absolute rate of fatty acid synthesis in leaves was determined in light and dark. Because administered 14C appears in fatty acids within < 2–3 min our results are inconsistent with a large pool of free acetate as an intermediate in leaf fatty acid synthesis. In addition, these studies provide an estimate of the turnover rate of fatty acid in leaves. Studies similar to the above are more complex in seeds, and some questions about the regulation of plant lipid metabolism seem difficult to solve using conventional biochemical or molecular approaches. For example, we have little understanding of why or how some seeds produce >50%, oil whereas other seeds store largely carbohydrate or protein. Major control over complex plant biochemical pathways may only become possible by understanding regulatory networks which provide ‘global’ control over these pathways. To begin to discover such networks and provide a broad analysis of gene expression in developing oilseeds, we have produced micro-arrays that display approx. 5000 seed-expressed Arabidopsis genes. Sensitivity of the arrays was 1–2 copies of mRNA/cell. The arrays have been hybridized with probes derived from seeds, leaves and roots, and analysis of expression ratios between the different tissues has allowed the tissue-specific expression patterns of many hundreds of genes to be described for the first time. Approx. 10% of the genes were expressed at ratios ≥ 10-fold higher in seeds than in leaves or roots. Included in this list are a large number of proteins of unknown function, and potential regulatory factors such as protein kinases, phosphatases and transcription factors. The arrays were also found to be useful for analysis of Brassica seeds.

Influence of Surface Hydrophobicity on the Esterification of Fatty Acids over Solid Catalysts

2010 ◽  
Vol 24 (3) ◽  
pp. 2154-2161 ◽  
Author(s):  
Jitendra K. Satyarthi ◽  
Darbha Srinivas ◽  
Paul Ratnasamy
Keyword(s):  
Fatty Acids ◽  
Surface Hydrophobicity ◽  
Solid Catalysts

Screening of active solid catalysts for esterification of tall oil fatty acids with methanol

2017 ◽  
Vol 155 ◽  
pp. 34-38 ◽  
Author(s):  
Jaroslav Kocík ◽  
Ajaikumar Samikannu ◽  
Hasna Bourajoini ◽  
Tung Ngoc Pham ◽  
Jyri-Pekka Mikkola ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Tall Oil ◽  
Solid Catalysts ◽  
Tall Oil Fatty Acids

Organosulfonic acid functionalized montmorillonites as solid catalysts for (trans) esterification of free fatty acids and (waste) oils

2020 ◽  
Vol 146 ◽  
pp. 2416-2429 ◽  
Author(s):  
Sónia M. Silva ◽  
Andreia F. Peixoto ◽  
Cristina Freire
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Solid Catalysts ◽  
Waste Oils

Synthesis of Glycerides of Fatty Acids by Inorganic Solid Catalysts: A Review

2021 ◽  
Author(s):  
Mariana S. Alvarez Serafini ◽  
Gabriela M. Tonetto
Keyword(s):  
Fatty Acids ◽  
Solid Catalysts

Green mechanical activation-assisted solid phase synthesis of cellulose esters using a co-reactant: effect of chain length of fatty acids on reaction efficiency and structure properties of products

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20656-20662 ◽  
Author(s):  
Huayu Hu ◽  
Haixia Li ◽  
Yanjuan Zhang ◽  
Yanmeng Chen ◽  
Zuqiang Huang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Efficient Technology ◽  
Cellulose Esters ◽  
Direct Production ◽  
Phase Synthesis ◽  
Chain Acyl ◽  
Long Chain ◽  
Structure Properties

A green, simple, and efficient technology for direct production of cellulose mixed esters with acetyl and long chain acyl substituents.

Measurements of surface acidity of solid catalysts for free fatty acids esterification in Jatropha curcas crude oil for biodiesel production

Fuel ◽  
2014 ◽  
Vol 115 ◽  
pp. 625-628 ◽  
Author(s):  
Grisel Corro ◽  
Fortino Bañuelos ◽  
Esmeralda Vidal ◽  
Surinam Cebada
Keyword(s):  
Fatty Acids ◽  
Crude Oil ◽  
Free Fatty Acids ◽  
Jatropha Curcas ◽  
Surface Acidity ◽  
Biodiesel Production ◽  
Solid Catalysts

Fatty Acids and Glycerides

1979 ◽  
Vol 7 (4) ◽  
pp. 813-814
Author(s):  
J. L. HARWOOD
Keyword(s):  
Fatty Acids
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