Dihydrosterculic acid, a major fatty acid component ofEuphoria longana seed oil

Lipids ◽  
1969 ◽  
Vol 4 (5) ◽  
pp. 317-320 ◽  
Author(s):  
R. Kleiman ◽  
F. R. Earle ◽  
I. A. Wolff
1969 ◽  
Vol 15 (4) ◽  
pp. 365-374 ◽  
Author(s):  
G. A. Adams ◽  
T. G. Tornabene ◽  
M. Yaguchi

Lipopolysaccharides (LPS) prepared from N. catarrhalis cells were separated into a chloroform-soluble fraction (26%) and a chloroform-insoluble fraction (74%). Both LPS fractions contained D-glucose, D-galactose, D-glucosamine, galactosamine, lipid A, ethanolamine, fatty acids, acetyl, phosphate, and protein in approximately equal proportions. The lipid A moieties prepared from the two LPS fractions were also similar in composition to each other. The fatty acids and galactosamine of the LPS fractions were recovered quantitatively in their lipid A fractions. The major fatty acid component was β-hydroxylauric acid in contrast with β-hydroxymyristic acid, which is the major fatty acid component of the lipid A of N. perflava and other Gram-negative bacteria. The lipid A of N. catarrhalis also contained a considerable amount of D-glucose and D-galactose, which are not normal constituents of lipid A fractions. The presence of amino acids (ca. 2%) in all fractions suggested that proteins were an integral part of the LPS molecules. The absence of heptose and 3-deoxyoctulosonic acid (KDO) from the N. catarrhalis LPS shows that it lacks a lipopolysaccharide "core" structure similar to that present in the LPS of N. perflava; the polysaccharide part of the LPS molecule is also compositionally different from that of N. perflava. These differences may provide additional evidence to that already accumulated from other sources that N. catarrhalis is taxonomically a "false neisseria".


1991 ◽  
Vol 42 (8) ◽  
pp. 1285 ◽  
Author(s):  
AP Negri ◽  
HJ Cornell ◽  
DE Rivett

The wool fibre contains a fatty acid component which can only be liberated from the fibre by treatment with alcoholic alkali solutions. The major fatty acid from this component has been isolated in quantity and purified. Using GC/MS and NMR, the fatty acid was identified as 18-methyleicosanoic acid. The results obtained from transesterification experiments suggest that the fatty acid is covalently bound to the fibre protein by an ester linkage.


Nature ◽  
1961 ◽  
Vol 192 (4799) ◽  
pp. 265-265 ◽  
Author(s):  
D. S. McLAREN ◽  
W. W. C. READ

1970 ◽  
Vol 41 (3) ◽  
pp. 203-206
Author(s):  
MIH Mondal ◽  
MA Khaleque ◽  
MA Hossain ◽  
MA Hye

Studies were carried out on the preparation of powerful phenyl from petuli (Trewia nudiflora linn) seed oil. It was found that petuli seed contains 22 % of pale-yellow coloured oil. The physical and chemical characteristics of the oil were determined by the conventional methods and the fatty acid by gas liquid chromatography (G.L.C). From the results it is evident that the oil can be used suitably for the preparation of powerful phenyl on accounts of its high α-elaeostearic acid (38 %) a major fatty acid component content and higher saponification value (185). This phenyl was applied on bacteria and found effective result. Bangladesh J. Sci. Ind. Res. 41(3-4), 203-206, 2006


2000 ◽  
Vol 53 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Utako Umemura ◽  
Mako Ishimori ◽  
Sayuri Watanabe ◽  
Hiroyasu Iso ◽  
Takashi Shimamoto ◽  
...  

1988 ◽  
Vol 43 (8) ◽  
pp. 1063-1068 ◽  
Author(s):  
J. Stein ◽  
H. Budzikiewicz

AbstractThe structures of six ceramide-1-phosphoethanolamines have been elucidated which differ in the long chain base as well as in the fatty acid component


2015 ◽  
Vol 61 (2) ◽  
pp. 14-29 ◽  
Author(s):  
Mouna Ben Farhat ◽  
Rym Chaouch -Hamada ◽  
Ahmed Landoulsi

Summary A comparative study of the oil yield and fatty acid composition of three Salvia species seeds collected in different locations has been conducted. Seed oil extraction was made using a Soxhlet-extractor and fatty acid analysis was undertaken using a GC-FID. The effect of the collecting site on oil yield, as well as the content of individual fatty acid and total fatty acid and fatty acid content was significant. Seed oil yield varied from 14.94 to 22.83% and the total fatty acids ranged from 67.36 to 82.49 mg/g DW. α-Linolenic (24.02-49.19%), linoleic (20.13-42.88%), oleic (12.97-17.81%) and palmitic (8.37-16.63%) acids were the most abundant fatty acids in all analyzed samples. α-Linolenic acid was found to be the major fatty acid in S. verbenaca and S. officinalis species, however, S. aegyptiaca was characterized by the prevalence of linoleic acid. Among the unsaturated fatty acids, which were represented in all samples in high amounts (78.16-89.34%), the polyunsaturated fatty acids (α-linolenic and linoleic acids) showed important levels ranging from 63.09 to 74.71%. Seeds of S. verbenaca were the richest in polyunsaturated fatty acids.


2002 ◽  
Vol 56 (4) ◽  
pp. 147-156 ◽  
Author(s):  
Dusan Jovanovic ◽  
Branislav Markovic ◽  
Miroslav Stankovic ◽  
Ljiljana Rozic ◽  
Tatjana Novakovic ◽  
...  

Developed in the late 1800s as a butter substitute, margarine is made with vegetable oils. Margarine was created by a scientist from Provence (France) Hippolyte Mege-Mouries, in response to an offer by the Emperor Louis Napoleon III. To formulate his entry, Mege-Mouries used margaric acid, a fatty acid component isolated in 1813 by Michael Chevreul and named because of the lustrous pearly drops that reminded him of the Greek word for pearl - margarites.


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