scholarly journals Fatty acid Constituent from the Heat Processed Roots of Panax ginseng

2013 ◽  
Vol 25 (2) ◽  
pp. 1086-1088 ◽  
Author(s):  
Ill-Min Chung ◽  
Min-Young Kim ◽  
Nagella Praveen ◽  
Youn-Pyo Hong ◽  
Ateeque Ahmad
Keyword(s):  
Fatty Acid ◽  
Panax Ginseng ◽  
Fatty Acid Constituent

scholarly journals Active synthesis of C24:5, n-3 fatty acid in retina

1996 ◽  
Vol 316 (3) ◽  
pp. 859-864 ◽  
Author(s):  
N. P. ROTSTEIN ◽  
G. L. PENNACCHIOTTI ◽  
H. SPRECHER ◽  
M. I. AVELDAÑO
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Minor Component ◽  
Major Fatty Acid ◽  
Active Synthesis ◽  
Fatty Acid Constituent ◽  
A Minor ◽  
Long Chain ◽  
Pufa Metabolism ◽  
Active Formation

The formation of 14C-labelled long-chain and very-long-chain (n-3) pentaenoic and hexaenoic fatty acids was studied in bovine retina by following the metabolism of [14C]docosapentaenoate [C22:5, n-3 fatty acid (22:5 n-3)], [14C]docosahexaenoate (22:6 n-3), and [14C]acetate. With similar amounts of 22:5 n-3 and 22:6 n-3 as substrates, the former was actively transformed into 24:5 n-3, whereas the latter was virtually unmodified. Labelled 24:5, 26:5, 24:6 and 22:6 were formed from [1-14C]22:5 n-3, showing that pentaenoic fatty acids including 24:5 n-3 can be elongated and desaturated within the retina. When retinal microsomes were incubated with [1-14C]22:5 n-3, 24:5 n-3 was the only fatty acid formed. In retinas incubated with [14C]acetate, 24:5 n-3 was the most highly labelled fatty acid among the polyenes synthesized, 24:6 n-3 being a minor product. Such selectivity in the elongation of two fatty acids identical in length, 22:5 n-3 and 22:6 n-3, despite the fact that 22:5 is a minor and 22:6 a major fatty acid constituent of retina, suggests that the active formation of 24:5 n-3 plays a key role in n-3 polyunsaturated fatty acid (PUFA) metabolism. This compound might give rise to even longer pentaenes via elongation, and to the major PUFAs of retina, 22:6 n-3, by 6-desaturation and chain shortening. Of all retinal lipids, a minor component, triacylglycerol (TG), incorporated the largest amounts of [14C]22:5 and 22:6. TG also concentrated most of the [14C]24:5 formed in retina, whether from [14C]22:5 n-3 or from [14C]acetate, suggesting an important role for this lipid in supporting PUFA metabolism and the synthesis of 22:6 n-3.

scholarly journals On the Fatty Acid Constituent of Sendan (Melia japonica, G. Don) Seed Oil from Tosa Province

1965 ◽  
Vol 14 (2) ◽  
pp. 51-54
Author(s):  
Nenokichi HIRAO ◽  
Hiromu KAMEOKA ◽  
Takeo IMADA ◽  
Rikio YAMAMOTO
Keyword(s):  
Fatty Acid ◽  
Seed Oil ◽  
Fatty Acid Constituent

scholarly journals Effect of Fatty Acid Constituent and Degree of Substitution in Sucrose Ester of Fatty Acid on Stability of Aqueous Emulsion

1974 ◽  
Vol 27 (9) ◽  
pp. 455-459
Author(s):  
Tetsuo ISHIZUKA ◽  
Shinya MATSUSHITA ◽  
Takeo TAKAHASHI ◽  
Shingo NAKAMURA
Keyword(s):  
Fatty Acid ◽  
Sucrose Ester ◽  
Degree Of Substitution ◽  
Aqueous Emulsion ◽  
Fatty Acid Constituent

scholarly journals Effect of Fatty Acid Constituent and Degree of Substitution on Surface Activity of Sucrose Ester of Fatty Acid

1974 ◽  
Vol 27 (9) ◽  
pp. 449-453
Author(s):  
Tetsuo ISHIZUKA ◽  
Takao WATANABE ◽  
Ichiro SASAKI ◽  
Shingo NAKAMURA
Keyword(s):  
Fatty Acid ◽  
Surface Activity ◽  
Sucrose Ester ◽  
Degree Of Substitution ◽  
Fatty Acid Constituent

scholarly journals The effect of sn-2 fatty acid substitution on phospholipase C enzyme activities

1987 ◽  
Vol 244 (3) ◽  
pp. 497-502 ◽  
Author(s):  
J S Bomalaski ◽  
M A Clark
Keyword(s):  
Arachidonic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Palmitic Acid ◽  
Phospholipase C ◽  
Saturated Fatty Acids ◽  
Human Monocyte ◽  
Fatty Acid Constituent ◽  
Monocyte Cell ◽  
Fold Excess

The human monocyte cell line U937 expresses phospholipase A2 and phospholipase C activities and produces eicosanoids. The phospholipase C (PLC) activity exhibits substrate preference for phosphatidyl-choline (PC), rather than phosphatidylinositol or phosphatidylethanolamine. In order to characterize the PLC activity found in these cells, the effects of substitution of the sn-2 fatty acid on this activity were examined. PC substrates with palmitic acid (PC-2P), oleic acid (PC-2O), arachidonic acid (PC-2A) and linoleic acid (PC-2L) at the sn-2 position were used. The sn-1 fatty acid was palmitic acid. PC-2L and PC-2A with the longer-chain less-saturated fatty acids linoleic acid and arachidonic acid esterified at sn-2 were found to be better substrates for PLC activity than PC-2P or PC-2O in these cells. This preference was maintained even when substrate phospholipid was solubilized in non-ionic, anionic, cationic and zwitterionic amphiphiles. Furthermore, when a 500-fold excess of 1,2-diolein or 1,2-dipalmitin was added to the reaction, the specificity of the PLC activity for PC-2A and PC-2L remained unchanged. When similar experiments were performed with phosphatidylinositol as a substrate, we did not observe any effect when the sn-2 position was altered. These data show that the fatty acid constituent at the sn-2 position affects the observed PLC activity when phosphatidylcholine, but not phosphatidylinositol, is used as a substrate by these cells.

scholarly journals Absolute configuration of the .BETA.-hydroxyl fatty acid constituent of permetin A.

1985 ◽  
Vol 38 (11) ◽  
pp. 1610-1613 ◽  
Author(s):  
ASAO MURAI ◽  
YUSUKE AMINO ◽  
TOSHIHIKO ANDO
Keyword(s):  
Fatty Acid ◽  
Absolute Configuration ◽  
Fatty Acid Constituent

scholarly journals Proximate Composition and Nutritional Attributes of Ready-to-Cook Catfish Products

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2716
Author(s):  
John M. Bland ◽  
Casey C. Grimm ◽  
Peter J. Bechtel ◽  
Uttam Deb ◽  
Madan M. Dey
Keyword(s):  
Fatty Acid ◽  
Amino Acid ◽  
Lipid Content ◽  
Nutrient Content ◽  
Area Ratio ◽  
Atherogenic Index ◽  
Surface Area Ratio ◽  
Fish Products ◽  
Fatty Acid Constituent ◽  
Thrombogenic Index

To increase the demand for U.S. farm-raised catfish, five healthy, convenient ready-to-cook products were developed to expand consumers’ options beyond basic fresh or frozen fillets. Five new catfish products were produced, consisting of one hundred samples of each, including three size-types of Panko-breaded fish products (strips, center cuts of regular fillets, and center cuts from Delacata fillets) and two marinated products (sriracha and sesame-ginger). The breaded products were to be prepared by baking for convenience over traditional frying methods, while the marinated products were to be microwaved as healthy and convenient products. The nutrient content of the samples was analyzed, including protein, moisture, fat, fiber, ash, and carbohydrate, as well as minerals, amino acid, and fatty acid constituent content, with associated atherogenic index (AI) and thrombogenic index (TI), showing unique differences between the Panko-breaded and marinated products. In addition, a trend was observed showing an increase in moisture, protein, ash, and carbohydrate percentages, and a decrease in lipid content related to the volume-to-surface-area ratio, having the order of strips < standard fillets < Delacata fillets.

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.

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