Studies on the constituents of Cyclanthera pedata fruits: Isolation and structure elucidation of new triterpenoid saponins
Articolo
Data di Pubblicazione:
1999
Citazione:
Studies on the constituents of Cyclanthera pedata fruits: Isolation and structure elucidation of new triterpenoid saponins / N. De Tommasi, F. De Simone, G. Speranza, C. Pizza. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 47:11(1999), pp. 4512-4519. [10.1021/jf9900128]
Abstract:
The isolation of nine triterpenoid saponins (1-9), among them six new natural compounds (1-6), from the MeOH extract of the fruits of Cyclanthera pedata is reported. All of the structures were elucidated by spectroscopic methods, including the concerted application of one-dimensional H-1-H-1 total correlation spectroscopy, H-1-H-1 nuclear Overhauser effect spectroscopy), and C-13-C-13; DEPT-NMR and two-dimensional NMR techniques (double-quantum filtered correlated spectroscopy, rotating-frame Overhauser enhancement spectroscopy, heteronuclear single quantum coherence, and heteronuclear multiple bond correlation). A comparative study of seeds and fruits has been also carried out.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Cyclanthera pedata; Cucurbitaceae; fruits; food source; triterpenoid saponins; 1H and 13C NMR analysis
Elenco autori:
N. De Tommasi, F. De Simone, G. Speranza, C. Pizza
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