Methodology for identification of phenolic acids in complex phenolic mixtures by high-resolution two-dimensional nuclear magnetic resonance. Application to methanolic extracts of two oregano species

被引：52

作者：

Gerothanassis, IP ^{[1
]}

Exarchou, V

Lagouri, V

Troganis, A

Tsimidou, M

Boskou, A

机构：

[1] Univ Ioannina, Dept Chem, Sect Organ Chem & Biochem, GR-45110 Ioannina, Greece

[2] Aristotle Univ, Sch Chem, Food Chem & Technol Lab, GR-54006 Salonika, Greece

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1998年 / 46卷 / 10期

关键词：

oregano; phenolic acids; H-1; NMR; COSY; TOCSY; NOESY/ROESY;

D O I：

10.1021/jf9804591

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Spectroscopic methodology in analyzing two-dimensional (2D) NMR spectra of a mixture of several phenolic compounds that occur in natural products is described. Particular emphasis has been given to the determination of scalar coupling connectivities by homonuclear 2D correlated spectroscopy (COSY), remote intraresidue connectivities by totally correlated spectroscopy (TOCSY), and spatially close but uncoupled H-1 nuclei by homonuclear 2D nuclear Overhauser effect spectroscopy (NOESY/ROESY). Preliminary data to identify phenolic acids in the methanolic extracts from two oregano plants are also reported.

引用

页码：4185 / 4192

页数：8

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