食品科学 ›› 2012, Vol. 33 ›› Issue (17): 40-43.

• 基础研究 • 上一篇    下一篇

荔枝皮原花青素低聚体的定性分析

周玮婧1,2,隋 勇2,孙智达2,*,谢笔钧2   

  1. 1.武汉市食品药品检验所 2.华中农业大学食品科学技术学院
  • 收稿日期:2011-07-18 修回日期:2012-07-30 出版日期:2012-09-15 发布日期:2012-11-09
  • 通讯作者: 孙智达 E-mail:sunzhida@mail.hzau.edu.cn
  • 基金资助:

    国家自然科学基金-广东省联合基金;“十一五”国家科技支撑计划项目

Qualitative Analysis of Oligomeric Procyanidins from Litchi chinensis Pericarp

  • Received:2011-07-18 Revised:2012-07-30 Online:2012-09-15 Published:2012-11-09
  • Contact: zhida Sun E-mail:sunzhida@mail.hzau.edu.cn

摘要: 制备并定性分析荔枝皮原花青素低聚体(LPOPC)。荔枝皮原花青素(LPPC)通过乙醇浸提,AB-8大孔树脂纯化,Toyopearl HW-40S 树脂层析分级处理得到LPOPC,并按聚合度分成了3个组分。通过红外光谱、高效液相色谱(HPLC)和液相色谱-质谱联用(LC-MS)等分析表明,LPOPC中主要成分为(-)-表儿茶素,并且含有A型原花青素二聚体和A型原花青素三聚体。通过选择性的级分收集,可以得到纯度较高的原花青素单体、二聚体和三聚体。

关键词: 荔枝皮, 原花青素, 低聚体, LC-MS

Abstract: Litchi (Litchi chinensis Sonn.) is a subtropical fruit of high commercial value; however, its pericarp results in a reduced market value. In the present study, oligomeric procyanidins from Litchi chinensis pericarp (LPOPC) were prepared and qualitatively analyzed. LPOPC were extracted with ethanol aqueous solution, purified by AB-8 macroporous resin chromatography, and fractionated by Toyopearl HW-40S resin chromatography to obtain LPOPC. LPOPC was found to comprise three fractions with different degrees of polymerization (DP). The results of FT-IR, HPLC and LC-MS analyses revealed that the major components of LPOPC were (-)-epicatechin, procyanidin A2, procyanidin A3. Highly pure monomer, dimmers and trimers were obtained through selective collection of fractions.

Key words: Litchi chinensis pericarp, procyanidins, oligomer, LC-MS 

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