scholarly journals Stereoselective oxidation of regioisomeric octadecenoic acids by fatty acid dioxygenases

2011 ◽  
Vol 52 (11) ◽  
pp. 1995-2004 ◽  
Author(s):  
Ernst H. Oliw ◽  
Anneli Wennman ◽  
Inga Hoffmann ◽  
Ulrike Garscha ◽  
Mats Hamberg ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Octadecenoic Acids ◽  
Stereoselective Oxidation ◽  
Fatty Acid Dioxygenases

HYDROXY FATTY ACID GLYCOSIDES OF SOPHOROSE FROM TORULOPSIS MAGNOLIAE

1961 ◽  
Vol 39 (4) ◽  
pp. 846-855 ◽  
Author(s):  
P. A. J. Gorin ◽  
J. F. T. Spencer ◽  
A. P. Tulloch
Keyword(s):  
Fatty Acid ◽  
Hydroxy Fatty Acid ◽  
Octadecenoic Acids

The oil formed during fermentation by a strain of Torulopsismagnoliae consisted mainly of partly acetylated 2-O-β-D-glucopyranosyl-D-glucopyranose units attached β-glycosidically to 17-L-hydroxyoctadecanoic and 17-L-hydroxy-9-octadecenoic acids.

scholarly journals The products of partial hydrogenation some higher polyethylenic esters

1929 ◽  
Vol 122 (790) ◽  
pp. 563-570 ◽  
Keyword(s):  
Fatty Acid ◽  
Methyl Oleate ◽  
Methyl Linoleate ◽  
Fatty Acid Ester ◽  
Selective Hydrogenation ◽  
Acid Ester ◽  
Methyl Linolenate ◽  
Partial Hydrogenation ◽  
Octadecenoic Acids ◽  
Preceding Communication

It is well known that, when an unsaturated higher fatty acid ester (such as methyl linoleate or linolenate) is hydrogenated, the process is largely selective, and no fully-saturated ester is produced until nearly 90 per cent, of the polyethylenic ester has been transformed into monoethylenic compounds ( i. e ., methyl oleate and iso-oleates). Accordingly, if the monoethylenic esters produced by selective hydrogenation of, for example, methyl linolenate. CH 3 . CH 2 . CH : CH . CH 2 . CH : CH. CH 2 . CH : CH. [CH 2 ] 7 . COOMe were a mixture of the esters of Δ 9 : 10 -, Δ 12 : 13 -, and Δ 15 : 16 -octadecenoic acids in more or less equivalent proportions, it should be possible to determine the position of the ethylenic linkages in the original compound by careful oxidation of the mixture of methyl oleates formed, according to the methods given in the preceding communication.

Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

1982 ◽  
Vol 40 ◽  
pp. 78-79
Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser
Keyword(s):  
Electron Beam ◽  
Fatty Acid ◽  
Inelastic Scattering ◽  
Temperature Dependence ◽  
Structural Damage ◽  
Direct Result ◽  
Second Step ◽  
Strong Temperature Dependence ◽  
Electron Dose ◽  
Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

Effect of light intensity on the ultrastructure of the filamentous cyanobacterium, Anabaena variabilis

1988 ◽  
Vol 46 ◽  
pp. 300-301
Author(s):  
C. S. Bricker ◽  
S. R. Barnum ◽  
B. Huang ◽  
J. G. Jaworskl
Keyword(s):  
Fatty Acid ◽  
Light Intensity ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Anabaena Variabilis ◽  
Chloroplast Envelope ◽  
Major Constituent ◽  
Filamentous Cyanobacterium ◽  
Photosynthetic Membrane ◽  
Effect Of Light

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.

The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen
Keyword(s):  
Systematic Review ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Meta Analysis ◽  
Chain Polyunsaturated Fatty Acid ◽  
Inflammation Markers ◽  
Pufa Supplementation ◽  
Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

Fatty acid ketodienes and fatty acid ketotrienes: Michael addition acceptors that accumulate in wounded and diseased Arabidopsis leaves

2000 ◽  
Vol 24 (4) ◽  
pp. 467-476 ◽  
Author(s):  
Sabine Vollenweider ◽  
Hans Weber ◽  
Stephanie Stolz ◽  
Aurore Chetelat ◽  
Edward E. Farmer
Keyword(s):  
Fatty Acid ◽  
Michael Addition
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