Profiling the phenolic compounds of Artemisia pectinata by HPLC-PAD-MSn.
Profiling the phenolic compounds of Artemisia pectinata by HPLC-PAD-MSn.
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DOI：
10.1002/pca.1045
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发表时间：
2008-07
期刊：
影响因子：
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通讯作者：
Chao-Mei Ma;M. Hattori;Hu-Biao Chen;S. Cai;M. Daneshtalab
中科院分区：
文献类型：
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作者：
Chao-Mei Ma;M. Hattori;Hu-Biao Chen;S. Cai;M. Daneshtalab
采用 HPLC-PAD-MS(n) 方法对梳状蒿 (Neopallasia pectinata) 地上部分的酚类化合物进行了分析，这种植物此前没有关于其酚类成分的报道。反式咖啡酰奎尼酸的三种异构体以及顺式5-咖啡酰奎尼酸、反式二咖啡酰奎尼酸的六种异构体、反式二咖啡酰奎尼酸甲酯的两种异构体（包括一种新异构体）、一种反式咖啡酰阿魏酰奎尼酸和三种黄酮类化合物，通过分析它们的UV和MS(n)光谱并与从天然来源中分离的标准化合物进行比较，明确鉴定出它们，或合成的，或者是替代标准品（绿咖啡提取物）。通过分析 UV 和 MSn 数据并与文献中报道的数据进行比较，鉴定了其他化合物。 MS(n)实验还表明存在二咖啡酰奎尼酸糖苷、咖啡酰奎尼酸二糖苷、咖啡酰奎尼酸糖苷和奎尼酸二糖苷组。
An HPLC-PAD-MS(n) method was employed to profile the phenolic compounds of the aerial part of Artemisia pectinata (Neopallasia pectinata), a plant with no previous reports concerning its phenolic constituents. Three isomers of trans-caffeoylquinic acid accompanied by cis-5-caffeoylquinic acid, six isomers of trans-dicaffeoylquinic acid, two isomers of methyl trans-dicaffeoylquinate (including one new isomer), a trans-caffeoylferuloylquinic acid and three flavanoids were identified unambiguously by analysis of their UV and MS(n) spectra in comparison with standard compounds that were isolated from natural sources, or synthesised, or were surrogate standards (green coffee extract). Other compounds were identified by analysis of their UV and MSn data in comparison with those reported in the literature. MS(n) experiments also suggested the presence of groups of dicaffeoylquinic acid glycosides, caffeoylquinic acid diglycosides, caffeoylquinic acid glycosides and quinic acid diglycosides.