In vitro antioxidant capacities and fatty acid compositions of three Centaurea species collected from Central Anatolia region of Turkey

2010 ◽  
Vol 48 (10) ◽  
pp. 2638-2641 ◽  
Author(s):  
Gokhan Zengin ◽  
Yavuz Selim Cakmak ◽  
Gokalp Ozmen Guler ◽  
Abdurrahman Aktumsek
Keyword(s):  
Fatty Acid ◽  
Central Anatolia ◽  
Antioxidant Capacities ◽  
Fatty Acid Compositions

Phosphatidylethanolamine in Liver Mitochondria and Endoplasmic Reticulum; Molecular Species Distribution and Turnover

1975 ◽  
Vol 53 (6) ◽  
pp. 698-705 ◽  
Author(s):  
J. G. Parkes ◽  
W. Thompson
Keyword(s):  
Endoplasmic Reticulum ◽  
Fatty Acid ◽  
Specific Activity ◽  
Liver Mitochondria ◽  
Relative Activity ◽  
Layer Chromatography ◽  
Kinetics Of ◽  
Fatty Acid Compositions

Phosphatidylethanolamine from mitochondria and microsomes of guinea pig liver was separated by thin-layer chromatography into eight different classes differing in degree of unsaturation. The fatty acid compositions and molar proportions of each class isolated from microsomes were very similar to the corresponding class in mitochondria. In both organelles about half of the total was dienoic species while tetraenes comprised approximately 20%. Stearic acid was the major saturated fatty acid and in each membrane a greater selectivity for stearate over palmitate was found in each sub-class of phosphatidylethanolamine, when compared with the corresponding class of phosphatidylcholine.Following the intraperitoneal injection of [2-3H]glycerol, the labelling of each molecular class of phosphatidylethanolamine showed very similar progressions in microsomes and mitochondria over a 3 h interval. In both organelles the highest relative specific activity was attained by penta-plus hexaenoic classes, while the large dienoic class had the lowest relative activity, which, however, increased with time. Analysis of the dienoic class of phosphatidylethanolamine from whole liver showed it to be constituted by a rapidly turning over palmitoyl–linoleoyl fraction and a slowly labelled stearoyl–linoleoyl fraction, a pattern also exhibited by dienoic phosphatidylcholines.The similarities in profile of molecular classes of phosphatidylethanolamine and in the kinetics of labelling in vivo point to a close metabolic relation between the lipids of both organelles, suggestive of a transfer of different molecular classes at comparable rates from the endoplasmic reticulum, the site of synthesis, to the mitochondria. This is consistent with numerous other studies in vitro that have demonstrated inter-organelle exchange of lipids.

scholarly journals Effect of Dietary Docosahexaenoic Acid on In Vitro Thermogenesis and Fatty Acid Compositions of Brown Adipose Tissue.

1998 ◽  
Vol 48 (3) ◽  
pp. 189-196 ◽  
Author(s):  
Hiroshi OHINATA ◽  
Shyamal Kumar SAHA ◽  
Tomie OHNO ◽  
Noriaki HATA ◽  
Yoshihisa MISAWA ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Brown Adipose Tissue ◽  
Brown Adipose ◽  
Dietary Docosahexaenoic Acid ◽  
Fatty Acid Compositions

scholarly journals Observations on the pattern on biohydrogenation of esterified and unesterified linoleic acid in the rumen

1974 ◽  
Vol 31 (1) ◽  
pp. 99-108 ◽  
Author(s):  
R. C. Noble ◽  
J. H. Moore ◽  
C. G. Harfoot
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Free Fatty Acids ◽  
Free Acid ◽  
Octadecenoic Acid ◽  
Conjugated Diene ◽  
Plasma Triglycerides ◽  
Fatty Acid Compositions

1. Studies have been made of the effects of different concentrations of either free or esterified linoleic acid on the biohydrogenation of linoleic acid by rumen micro-organisms in vitro. A comparison has been made with the changes which occurred in the fatty acid compositions of rumen free fatty acids and plasma triglycerides of sheep given intraruminal infusions of linoleic acid or maize oil.2. In the in vitro experiments, with increasing concentrations of 18:2 added as the free fatty acid, a decreasing proportion of this 18:2 was hydrogenated to 18:0 andtrans-11-octadecenoic acid accumulated. The accumulation of large amounts oftrans-11-octadecenoic acid was accompanied in all instances by the accumulation of a conjugated diene identified ascis-9,trans-11-octadecadienoic acid. There appeared to be a product–precursor relationship between the conjugated diene and thetrans-11 monoene.3. When linoleic acid was presented in vitro as the triglyceride, the extent to which hydrogenation occurred was, in all instances, greater than when equivalent amounts of 18:2 were presented as the free acid. Only small amounts of thecis-9,trans-11 diene were detected, and there was no apparent product–precursor relationship between this conjugated diene and the C18monoenoic acids. The C18monoenoic acids that accumulated consisted of bothcisandtransisomers; thecisisomers consisted largely ofcis-9- andcis-11-octadecenoic acids, which together comprised about 30% of the C18monoenoic acids present.4. The infusion of free linoleic acid into the rumen of sheep resulted in an increase in the proportion of total 18:1 and a decrease in the proportions of 16:0 and 18:0 in the total rumen free fatty acids. This increase which occurred in the concentration of 18:1 consisted predominantly of thetrans-11 isomer. A concomitant increase in the concentration of the C18trans-11 acid was observed to occur in the fatty acids of the plasma triglycerides. Infusion of maize oil into the rumen of sheep resulted in little change in the fatty acid compositions of either the free fatty acids in the rumen or the triglycerides of the plasma.5. The findings in vitro and in vivo are discussed with reference to each other and with reference to the possibility that biohydrogenation of 18:2 derived from the triglyceride proceeds by a different pathway from that of 18:2 presented as the free acid.

scholarly journals Sterol and Fatty Acid Composition of Candida lusitaniae Clinical Isolates

2002 ◽  
Vol 46 (2) ◽  
pp. 531-533 ◽  
Author(s):  
F. Peyron ◽  
A. Favel ◽  
R. Calaf ◽  
A. Michel-Nguyen ◽  
R. Bonaly ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Amphotericin B ◽  
Fatty Acid Pattern ◽  
Sterol Composition ◽  
Clinical Isolates ◽  
Cationic Dye ◽  
In Vitro Susceptibility ◽  
Candida Lusitaniae ◽  
Fatty Acid Compositions

ABSTRACT The sterol and fatty acid compositions of four amphotericin B-resistant and of two amphotericin B-susceptible Candida lusitaniae clinical isolates were determined. A flow cytofluorometric susceptibility test (FCST) with a membrane potential-sensitive cationic dye was used as a complement to the conventional method for selecting the isolates. Compared to susceptible isolates, resistant ones showed a greatly reduced ergosterol content and changes in sterol composition, consistent with a defect in Δ8→7 isomerase. Within each group, no correlation between the sterol or fatty acid pattern or composition and both the degree of in vitro susceptibility and FCST MIC was found.

Fatty Acid Compositions of Bovine Adipose Tissue and of in vitro Lipogenesis

1974 ◽  
Vol 104 (4) ◽  
pp. 430-433 ◽  
Author(s):  
Marvin A. Pothoven ◽  
Donald C. Beitz ◽  
Ann Zimmerli
Keyword(s):  
Adipose Tissue ◽  
Fatty Acid ◽  
Fatty Acid Compositions

In vitro modulation of inflammatory cytokine production by three lipid emulsions with different fatty acid compositions

2004 ◽  
Vol 23 (6) ◽  
pp. 1324-1332 ◽  
Author(s):  
Jean-Marie Reimund ◽  
Olivier Scheer ◽  
Christian D Muller ◽  
Guillaume Pinna ◽  
Bernard Duclos ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Inflammatory Cytokine ◽  
Cytokine Production ◽  
Lipid Emulsions ◽  
Inflammatory Cytokine Production ◽  
Fatty Acid Compositions

Comparison of Fatty Acid Compositions and Tocopherols in Perilla germplasm of South Korea

2017 ◽  
Author(s):  
JS Sung ◽  
YJ Jeong ◽  
DJ Kim ◽  
YY Lee ◽  
YA Jeon ◽  
...  
Keyword(s):  
Fatty Acid ◽  
South Korea ◽  
Fatty Acid Compositions
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