Anthocyanins in cowpea [Vigna unguiculata (L.) Walp. ssp. unguiculata]

被引：0
|
作者：
Tae Joung Ha
Myoung-Hee Lee
Yu Na Jeong
Jin Hwan Lee
Sang-Ik Han
Chang-Hwan Park
Suk-Bok Pae
Chung-Dong Hwang
In-Youl Baek
Keum-Yong Park
机构：
[1] Rural Development Administration,Department of Functional Crop, National Institute of Crop Science (NICS)
来源：
Food Science and Biotechnology | 2010年 / 19卷
关键词：
cowpea; anthocyanin; high performance liquid chromatography;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The aim of this study was to isolate and identify the anthocyanins in the black seed coated cowpea [Vigna unguiculata (L.) Walp. ssp. unguiculata] using reverse phase C-18 open column chromatography and high performance liquid chromatography (HPLC) with diode array detection and electro spray ionization/mass spectrometry (DAD-ESI/MS) analysis, respectively. Anthocyanins were extracted from the coat of black cowpea with 1% trifluoroacetic acid (TFA) in methanol, isolated by RP-C-18 column chromatography, and their structures elucidated by 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. The isolated anthocyanins were characterized as delphinidin-3-O-glucoside (2) and cyanidin-3-O-glucoside (4). Furthermore, 5 minor anthocyanins were detected and identified as delphinidin-3-O-galactoside (1), cyanidin-3-O-galactoside (3), petunidin-3-O-glucoside (5), peonidin-3-O-glucoside (7), and malvidin-3-O-glucoside (8) based on the fragmentation patterns of HPLC-DADESI/MS analysis.
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页码：821 / 826
页数：5
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