Results 171 to 180 of about 7,477 (223)

Natural phenols and diglycerides in virgin olive oil and their relation [PDF]

Natural Product Research, 2008
This work is to be included among an evaluation of analytical methods to be used for determination of olive oil quality. Studies on the diglycerides and phenols fraction have been conducted on some olive oils, obtained from cultivars grown in Calabria ...
Armandodoriano Bianco, Francesco Bonadies   +1 more
exaly   +2 more sources

Chemoenzymatic synthesis and antimicrobial activity evaluation of monogalactosyl diglycerides [PDF]

European Journal of Medicinal Chemistry, 2008
Monogalactosyl diglycerides with medium to long fatty acid acyl chains, were prepared and examined for antimicrobial activity against Gram positive, Gram negative bacteria and fungi.
Giuseppe Procida, Francesca Cateni, Elena Banfi   +2 more
exaly   +2 more sources

Diglycerides [PDF]

, 2019
Reed A. Nicholson, Alejandro G. Marangoni   +1 more
openaire   +2 more sources

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The polymorphism of diglycerides

Journal of the Science of Food and Agriculture, 1992
AbstractThe polymorphism of 1,3‐dipalmitin, 1,2‐dipalmitoyl‐sn‐glycerol, 1.2‐dipalmitoyl‐rac‐glycerol has been examined by X‐ray diffraction, IR spectroscopy and Raman spectroscopy and differential scanning calorimetry. The respective spectra and thermographs are presented for these polymorphs.
R J Shannon, J. Fenerty, R J Hamilton, F B Padley   +3 more
openaire   +2 more sources

Determination of Ceramides and Diglycerides by the Diglyceride Kinase Assay

Analytical Biochemistry, 2001
This review will discuss the utilization of the diglyceride (DG) kinase assay as an analytical method that allows the simultaneous quantitation of DG and ceramide from cell and tissue samples. This enzymatic approach is sensitive, quantitative, and linear over a broad range (20 pmol to 20-25 nmol) for both classes of lipids.
A, Bielawska, D K, Perry, Y A, Hannun
openaire   +2 more sources

Synthesis of glycosyl diglycerides

Chemistry and Physics of Lipids, 1973
Abstract Synthesis of mono- and diglycosyl digly cerides with natural structure from 1,2-di-O-acyl-sn-glycerols, 1,2-O-isopropylidene-sn-glycerol, 2,5-methylene-D-mannitol by the orthoester method of glycosylation is reported.
V.I. Shvets, A.I. Bashkatova, R.P. Evstigneeva   +2 more
openaire   +1 more source

Acyl migration in diglycerides

Journal of the Chemical Society C: Organic, 1966
The equilibrium between 1,2-dipalmitin and 1,3-dipalmitin as a result of acyl migration has been studied using thin-layer chromatography and densitometry. When isomerisation is catalysed by potassium hydroxide, the composition of the equilibrium mixture varies with the temperature of the isomerisation.
I. P. Freeman, I. D. Morton
openaire   +1 more source

The preparation of unsymmetrical diglycerides

Journal of the Chemical Society C: Organic, 1967
Racemic 1,2-di-O-acylglycerols containing stearic and palmitic acids were prepared from 1,2-di-O-acyl-3-O-2′-tetrahydropyranylglycerols by hydrolysis of the tetrahydropyranyl group with boric acid. The 1,2-di-O-acyl-3-O-2′-tetrahydropyranylglycerols were obtained by acylation of 3-O-2′-tetrahydropyranylglycerol which was prepared from glycerol 1,2 ...
Jill Gigg, Roy Gigg
openaire   +1 more source

Quantitative analysis of sulfolipid (sulfoquinovosyl diglyceride) and galactolipids (monogalactosyl and digalactosyl diglycerides) in plant tissues

Analytical Biochemistry, 1968
Abstract A method has been developed for the quantitative and rapid estimation of sulfolipid and galactolipids in plant tissues. The procedure is based on the isolation of pure glycolipids by a combination of DEAE-cellulose column and thin-layer chromatography.
P G, Roughan, R D, Batt
openaire   +2 more sources

Monogalactosyl diglyceride and digalactosyl diglyceride from commercial rapessed “lecithin”

Journal of the American Oil Chemists' Society, 1972
AbstractBy silicic acid column separation small quantities of glycolipid‐rich fractions have been isolated from commercial Swedish rapeseed “lecithin.” Major components in these fractions are monogalactosyl diglyceride and digalactosyl diglyceride which have been identified by Rf on thin layer chromatography specific color reactions and IR spectrometry.
openaire   +1 more source