Extraction and HPLC analysis of phenolic compounds in leaves, stalks, and textile fibers of Urtica dioica L.

被引：119

作者：

Pinelli, Patrizia ^{[1
]}

Ieri, Francesca ^{[1
]}

Vignolini, Pamela ^{[1
]}

Bacci, Laura ^{[2
]}

Baronti, Silvia ^{[2
]}

Romani, Annalisa ^{[1
]}

机构：

[1] Univ Florence, Dept Pharmaceut Sci, I-50019 Florence, Italy

[2] CNR, Inst Biometeorol IBIMET, I-50145 Florence, Italy

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2008年 / 56卷 / 19期

关键词：

HPLC-DAD/MS; MS/MS spectra; Urtica dioica L. (nettle); flavonoids; anthocyanins; caffeoyl derivatives;

D O I：

10.1021/jf801552d

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

In the present study the phenolic composition of leaves, stalks, and textile fiber extracts from Urtica dioica L. is described. Taking into account the increasing demand for textile products made from natural fibers and the necessity to create sustainable "local" processing chains, an Italian project was funded to evaluate the cultivation of nettle fibers in the region of Tuscany. The leaves of two nettle samples, cultivated and wild (C and W), contain large amounts of chlorogenic and 2-O-caffeoylmalic acid, which represent 71.5 and 76.5% of total phenolics, respectively. Flavonoids are the main class in the stalks: 54.4% of total phenolics in C and 31.2% in W samples. Anthocyanins are second in quantitative importance and are present only in nettle stalks: 28.6% of total phenolics in C and 24.4% in W extracts. Characterization of phenolic compounds in nettle extracts is an important result with regard to the biological properties (antioxidant and antiradical) of these metabolites for their possible applications in various industrial activities, such as food/feed, cosmetics, phytomedicine, and textiles.

引用

页码：9127 / 9132

页数：6

共 28 条

[1] In vitro immunomodulatory activity of flavonoid glycosides from Urtica dioica L. [J].