草莓树（杜鹃花科）果实中的酚类物质：花色苷和没食子酸衍生物的鉴定
Phenolics of Arbutus unedo L. (Ericaceae) fruits: identification of anthocyanins and gallic acid derivatives.
作者信息
Pawlowska Agata Maria, De Leo Marinella, Braca Alessandra
机构信息
Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy.
出版信息
J Agric Food Chem. 2006 Dec 27;54(26):10234-8. doi: 10.1021/jf062230o.
Arbutus unedo L., the strawberry tree (Ericaceae family), is an evergreen shrub or small tree, typical of the Mediterranean fringe and climate. The aim of the present study was to evaluate the profile of the phenolic constituents of A. unedo fruits. Seven compounds were purified by Sephadex LH-20 column chromatography of the MeOH extract followed by HPLC and were characterized as arbutin, beta-D-glucogalline, gallic acid 4-O-beta-D-glucopyranoside, 3-O-galloylquinic acid, 5-O-galloylquinic acid, 3-O-galloylshikimic acid, and 5-O-galloylshikimic acid, by means of NMR and ESI-MS analyses. Moreover, LC-PDA-MS analysis of the red pigment of A. unedo fruits revealed the presence of three anthocyanins recognized as cyanidin 3-O-beta-D-galactopyranoside, delphinidin 3-O-beta-D-glucopyranoside, and cyanidin 3-O-beta-D-arabinopyranoside. These pigments were also quantified.
草莓树（杜鹃花科），学名为Arbutus unedo L.，是一种常绿灌木或小乔木，是地中海沿岸及其气候条件下的典型植物。本研究的目的是评估草莓树果实中酚类成分的概况。通过对甲醇提取物进行葡聚糖凝胶LH - 20柱色谱，随后进行高效液相色谱，纯化出七种化合物，并通过核磁共振（NMR）和电喷雾电离质谱（ESI - MS）分析，将其鉴定为熊果苷、β - D - 葡萄糖没食子酸酯、没食子酸4 - O - β - D - 吡喃葡萄糖苷、3 - O - 没食子酰奎宁酸、5 - O - 没食子酰奎宁酸、3 - O - 没食子酰莽草酸和5 - O - 没食子酰莽草酸。此外，对草莓树果实红色素的液相色谱 - 光电二极管阵列 - 质谱（LC - PDA - MS）分析显示存在三种花青素，分别为矢车菊素3 - O - β - D - 吡喃半乳糖苷、飞燕草素3 - O - β - D - 吡喃葡萄糖苷和矢车菊素3 - O - β - D - 吡喃阿拉伯糖苷。这些色素也进行了定量分析。
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