| dc.contributor.author |
Assimiadis, MK |
en |
| dc.contributor.author |
Tarantilis, PA |
en |
| dc.contributor.author |
Polissiou, MG |
en |
| dc.date.accessioned |
2014-06-06T06:43:46Z |
|
| dc.date.available |
2014-06-06T06:43:46Z |
|
| dc.date.issued |
1998 |
en |
| dc.identifier.issn |
00037028 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/1441 |
|
| dc.relation.uri |
http://www.scopus.com/inward/record.url?eid=2-s2.0-0032048425&partnerID=40&md5=8e6acba8d13f6b59a4c100337335a5ad |
en |
| dc.subject |
cis-trans Carotenoids |
en |
| dc.subject |
Crocus sativus L |
en |
| dc.subject |
FT-Raman |
en |
| dc.subject |
NMR |
en |
| dc.subject |
Saffron |
en |
| dc.subject |
Spectroscopy |
en |
| dc.subject |
UV-vis |
en |
| dc.subject.other |
Extraction |
en |
| dc.subject.other |
Fourier transform infrared spectroscopy |
en |
| dc.subject.other |
High pressure liquid chromatography |
en |
| dc.subject.other |
Molecular structure |
en |
| dc.subject.other |
Nuclear magnetic resonance spectroscopy |
en |
| dc.subject.other |
Plants (botany) |
en |
| dc.subject.other |
Protons |
en |
| dc.subject.other |
Ultraviolet spectroscopy |
en |
| dc.subject.other |
Carotenoids |
en |
| dc.subject.other |
Isomers |
en |
| dc.subject.other |
Pigments |
en |
| dc.title |
UV-vis, FT-Raman, and 1H NMR spectroscopies of cis-trans carotenoids from saffron (Crocus sativus L.) |
en |
| heal.type |
journalArticle |
en |
| heal.publicationDate |
1998 |
en |
| heal.abstract |
Stigmata of Crocus sativus L. were extracted in water, and the extract was analyzed by using a high-pressure liquid chromatography (HPLC) method. The carotenoids of saffron [cis and Irans glycosyl esters of crocetin or crocins (CRCs)] were isolated, and the two major isomer compounds (all-trans-digentiobiosyl crocetin and 13-cis-digentiobiosyl crocetin) were characterized spectroscopically with ultraviolet-visible (UV-vis), Fourier transform (FT)-Raman, and 1H NMR spectroscopies. The 13-cis compound showed in a UV-vis spectrum an additional peak at 330 nm, in an FT-Raman spectrum the presence of a peak at 1138 cm-1, and in the 1H NMR downfield shifts of protons 12 and 15 and an upfield shift of proton 14, with respect to the all-trans isomer, according to differences in their skeletal structures. These features are shown also by the profile of their two-dimensional spectra. |
en |
| heal.journalName |
Applied Spectroscopy |
en |
| dc.identifier.issue |
4 |
en |
| dc.identifier.volume |
52 |
en |
| dc.identifier.spage |
519 |
en |
| dc.identifier.epage |
522 |
en |