EurekaMag.com logo
+ Translate

Identification of cyclopentenyl fatty acids by 1H and 13C nuclear magnetic resonance


, : Identification of cyclopentenyl fatty acids by 1H and 13C nuclear magnetic resonance. Journal of the American Oil Chemists' Society 74(6): 727-730

Gorlic, chaulmoogric and hydnocarpic fatty acids, specific to the seed oil of the genus Hydnocarpus sp. (Flacourtiaceae), are determined only with difficulty by gas chromatography. These fatty acids were isolated in their methyl ester form by a combination of different chromatographic techniques (thin-layer chromatography/Ag+ and high-pressure liquid chromatography). The proton and carbon nuclear magnetic resonance analysis of these fatty acid methyl esters showed some characteristic signals of the cyclopentenyl ring. The presence of these signals in the proton and/or carbon nuclear magnetic resonance spectrum of an oil thus will allow us to confirm the presence of these cyclopentenyl fatty acids in lipids.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002863411

DOI: 10.1007/s11746-997-0209-7

Download PDF Full Text: Identification of cyclopentenyl fatty acids by 1H and 13C nuclear magnetic resonance


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Ingesson, S.Gunnel., 2006: Stability of IQ measures in teenagers and young adults with developmental dyslexia. A follow-up study was performed to investigate the stability of IQ measures in a group of dyslexic teenagers and young adults. Earlier research had shown contradictory results. The 65 subjects, 12 years old on the average at first test, were retes...

Smith, L., 1921: Sugar Cane in St. Croix. In this bulletin, dealing with the cultivation of sugar-cane, the following insects are recorded as attacking it in St. Croix: Diatraea saccharalis (moth borer); root grubs, such as those of Ligyrus tumulosus and Strategus titanus; the weevils, Me...

Lips, C.J.; van der Sluys, V.; van der Donk, J.A.; van Dam, R.H., 1978: Common precursor molecule as origin for the ectopic-hormone-producing-tumour syndrome. When messenger R.N.A. (m-R.N.A.) extracted from various hormone-secreting tumours was injected into Xenopus eggs, the translation products in all cases proved to be a protein of molecular weight 65 00. Analysis by polyacrylamide-gel electrophoresi...

Flaherty, L., 1983: Frontiers in immunogenetics edited by William H. Hildemann, Elsevier/North-Holland, 1981. $45.00/Dfl. 100.00 (xiii + 268 pages) ISBN 0 444 00624 9. Immunology Today 4(7): 203-203

Dimitrov, S., 1977: Afforestation and species composition of forests. Gorsko stopanstvo: 33 (3) 1-6

Viru, A.; Gollnick, P.D.; Tipton, C.M., 1999: Profiles of exercise scientists Yakovlev of Leningrad. FASEB Journal 13(4 PART 1): A384, March 12

Stephens, W.Edryd.; Calder, A.; Newton, J., 2005: Source and health implications of high toxic metal concentrations in illicit tobacco products. A significant flux of heavy metals, among other toxins, reaches the lungs through smoking. Consequently, contaminated soil is usually avoided for tobacco cultivation. Here we compare the heavy metal concentrations in tobacco from a sample of 47 co...

Osaka N., 1980: An inexpensive micro computer peripheral input output expansion. Using a one-chip programmable peripheral interface LSI (8255A), an inexpensive microcomputer (8K PET) peripheral I/O expansion can easily be constructed.

Cao, S-Wen.; Yin, Z.; Barber, J.; Boey, F.Y.C.; Loo, S.Chye.Joachim.; Xue, C., 2011: Preparation of Au-BiVO4 heterogeneous nanostructures as highly efficient visible-light photocatalysts. Au-BiVO(4) heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO(4) microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO(4) hetero...

Jacoby, P.W.; Meadors, C.H.; Ansley, R.J., 1990: Control of honey mesquite with herbicides: influence of plant height. In trials in 1977-83 at rangeland locations in W. and NW Texas, stands of honey mesquite (Prosopis glandulosa var glandulosa) were treated with aerial applications of 2,4,5-T, triclopyr and clopyralid, each alone or in combinations with picloram,...