Immobilized lipase-mediated long-chain fatty acid esterification in dense carbon dioxide: bench-scale packed-bed reactor study

2007 ◽  
Vol 41 (1) ◽  
pp. 74-81 ◽  
Author(s):  
Chiara Giulia Laudani ◽  
Maja Habulin ◽  
Željko Knez ◽  
Giovanna Della Porta ◽  
Ernesto Reverchon
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acid ◽  
Immobilized Lipase ◽  
Packed Bed ◽  
Chain Fatty Acid ◽  
Packed Bed Reactor ◽  
Long Chain Fatty Acid ◽  
Dense Carbon Dioxide ◽  
Acid Esterification ◽  
Long Chain

scholarly journals Preparation and Properties of Jute Fiber Long-Chain Fatty Acid Esters in Supercritical Carbon Dioxide

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1499
Author(s):  
Chong Li ◽  
Yueping Jiang ◽  
Baoshan Huang ◽  
Menghang Zhang ◽  
Yanhong Feng ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acid ◽  
Supercritical Carbon Dioxide ◽  
Chain Fatty Acid ◽  
Fatty Acid Esters ◽  
Jute Fiber ◽  
Oil Absorption ◽  
Long Chain Fatty Acid ◽  
Long Chain ◽  
Supercritical Carbon

A two-step method involving continuous screw-extrusion steam explosion (CSESE) pretreatment and esterification in supercritical carbon dioxide (scCO2) is used to prepare long-chain fatty acid-modified jute fiber. The weight gain percentage (WG %) of CSESE-pretreated jute laurate (JL) was 110.7% when esterification was carried out in scCO2 at 14 MPa and 100 °C for 2 h. The corresponding WG % was 105.5% when esterification was instead carried out in pyridine at 100 °C for 2 h. Scanning electron microscopy and X-ray diffraction indicated that CSESE pretreatment enhanced the reactivity of jute fiber, with esterification in scCO2 simultaneously occurring on the fibers surface and internal walls. The glass transition temperature of esterified jute was approximately 119 °C, indicating that it could be hot processed over a wide temperature range. The esterified jute had an oil absorption ratio of 17.01 g/g, so it can be used as an oil absorption material.

scholarly journals Greater Transport Efficiencies of the Membrane Fatty Acid Transporters FAT/CD36 and FATP4 Compared with FABPpm and FATP1 and Differential Effects on Fatty Acid Esterification and Oxidation in Rat Skeletal Muscle

2009 ◽  
Vol 284 (24) ◽  
pp. 16522-16530 ◽  
Author(s):  
James G. Nickerson ◽  
Hakam Alkhateeb ◽  
Carley R. Benton ◽  
James Lally ◽  
Jennifer Nickerson ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Oxidation ◽  
Chain Fatty Acid ◽  
Acid Oxidation ◽  
Fatty Acid Transport ◽  
Acid Transport ◽  
Rat Skeletal Muscle ◽  
Long Chain Fatty Acid ◽  
Acid Esterification ◽  
Long Chain

In selected mammalian tissues, long chain fatty acid transporters (FABPpm, FAT/CD36, FATP1, and FATP4) are co-expressed. There is controversy as to whether they all function as membrane-bound transporters and whether they channel fatty acids to oxidation and/or esterification. Among skeletal muscles, the protein expression of FABPpm, FAT/CD36, and FATP4, but not FATP1, correlated highly with the capacities for oxidative metabolism (r ≥ 0.94), fatty acid oxidation (r ≥ 0.88), and triacylglycerol esterification (r ≥ 0.87). We overexpressed independently FABPpm, FAT/CD36, FATP1, and FATP4, within a normal physiologic range, in rat skeletal muscle, to determine the effects on fatty acid transport and metabolism. Independent overexpression of each fatty acid transporter occurred without altering either the expression or plasmalemmal content of other fatty acid transporters. All transporters increased fatty acid transport, but FAT/CD36 and FATP4 were 2.3- and 1.7-fold more effective than FABPpm and FATP1, respectively. Fatty acid transporters failed to alter the rates of fatty acid esterification into triacylglycerols. In contrast, all transporters increased the rates of long chain fatty acid oxidation, but the effects of FABPpm and FAT/CD36 were 3-fold greater than for FATP1 and FATP4. Thus, fatty acid transporters exhibit different capacities for fatty acid transport and metabolism. In vivo, FAT/CD36 and FATP4 are the most effective fatty acid transporters, whereas FABPpm and FAT/CD36 are key for stimulating fatty acid oxidation.

scholarly journals Long-chain fatty acid-induced changes in gene expression in neonatal cardiac myocytes

2000 ◽  
Vol 41 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Karin A. J.M. van der Lee ◽  
Michaël M. Vork ◽  
Johan E. De Vries ◽  
Peter H.M. Willemsen ◽  
Jan F.C. Glatz ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acid ◽  
Cardiac Myocytes ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Induced Changes ◽  
Long Chain

scholarly journals 588 Distinct Roles of the Long-Chain Fatty Acid Receptor GPR120 in Different Cell Types of the Intestinal Epithelium

2014 ◽  
Vol 146 (5) ◽  
pp. S-110-S-111
Author(s):  
Arivarasu Natarajan Anbazhagan ◽  
Shubha Priyamvada ◽  
Tarunmeet Gujral ◽  
Waddah A. Alrefai ◽  
Pradeep K. Dudeja ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Intestinal Epithelium ◽  
Cell Types ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Acid Receptor ◽  
Different Cell Types ◽  
Long Chain ◽  
Fatty Acid Receptor
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