食品科学

• 生物工程 • 上一篇    下一篇

红莲外皮原花青素的纯化与分析

李绮丽,彭芳刚,刘德明,刘珍宝,吴卫国   

  1. 1.湖南农业大学食品科技学院,食品科学与生物技术湖南省重点实验室,湖南 长沙 410128;2.湖南省农业科学院农产品加工研究所,湖南 长沙 410125;3.湖南农业大学 作物种质创新湖南省重点实验室,分析测试中心国家重点实验室,湖南 长沙 410128;4.中南大学药学院,湖南 长沙 410013
  • 出版日期:2014-02-13 发布日期:2014-03-17

Purification and Analysis of Proanthocyanidins from Red Peel of Lotus Seeds

LI Qi-li, PENG Fang-Gang, LIU De-ming, LIU Zhen-bao, WU Wei-guo   

  1. 1. Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; 2. Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences,Changsha 410125, China; 3. Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Analysis and Testing Center of National Key Laboratory, Hunan Agricultural University, Changsha 410128, China;4. School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
  • Online:2014-02-13 Published:2014-03-17

摘要:

原花青素作为多酚的一大类广泛存在于天然植物中。红莲外皮原花青素粗提取物采用大孔树脂AB-8和聚酰胺柱进行两次纯化。纯化物通过红外光谱(infrared spectrum,IR)和电子喷雾离子化质谱(electrosprayionization-mass spectroscopy,ESI-MS)对成分进行分析,并通过反相液相色谱-质谱(reverse phase high-performanceliquid chromatography- mass spectroscopy,RP-HPLC-MS/MS)联用对组分进行分离鉴定。结果表明:纯化物中有9 种原花青素单体和低聚体,其中包括儿茶素和表儿茶素(m/z 289)、棓儿茶素(m/z 305),4 种原花青定二聚体的同分异构体(m/z 577)和2 种原花青定四聚体的同分异构体(m/z 1 153)。

关键词: 莲子, 原花青素, 红外光谱, 液质联用

Abstract:

Proanthocyanidins, a large class of polyphenols, are widely present in natural plants. In this study,
proanthocyanidins extracted from the red peel of lotus seeds were purified by a macroporous resin AB-8 and a polyamide
column. Chromatographic eluates were analyzed by infrared spectroscopy (IR) and electrospray ionization-mass
spectroscopy (ESI-MS). The separated components of proanthocyanidins were further confirmed by reverse phase highperformance
liquid chromatography-mass spectroscopy (RP-HPLC-MS/MS) to be nine monomers and oligomers of
proanthocyandins including (+)-catechin, (-)-epicatechin (m/z 289), (+)-gallocatechin (m/z 305), four isomeric compounds of
procyanidin dimers (m/z 577) and two tetramers (m/z 1 153).

Key words: lotus seed, proanthocyanidins, infrared spectroscopy, reverse phase highperformance liquid chromatography-mass spectroscopy