食品科学

• 基础研究 • 上一篇    下一篇

紫甘薯花色苷在双水相萃取体系中的分配特性

陈姗姗1,2,王 丹1,张 超1,马 越1,张 晖2,赵晓燕1,*   

  1. 1.北京市农林科学院蔬菜研究中心,农业部华北地区园艺作物生物学与种质创制重点实验室,
    农业部都市农业(北方)重点实验室,北京 100097;2.江南大学食品学院,江苏 无锡 214122
  • 出版日期:2013-10-15 发布日期:2013-09-27
  • 通讯作者: 赵晓燕
  • 基金资助:

    北京市自然科学基金重点项目(6111001);国家现代农业产业技术体系建设专项(CARS-25-E-02)

Partition Characteristics of Anthocyanins from Purple Sweat Potato during Aqueous Two-phase Extraction

CHEN Shan-shan1,2,WANG Dan1,ZHANG Chao1,MA Yue1,ZHANG Hui2,ZHAO Xiao-yan1,*   

  1. 1. Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Key Laboratory
    of Urban Agriculture (North), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry
    Sciences, Beijing 100097, China;2. School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • Online:2013-10-15 Published:2013-09-27
  • Contact: ZHAO Xiao-yan

摘要:

采用液质联机法鉴定紫甘薯花色苷结构,通过高效液相色谱法测定花色苷各组分含量,研究不同结构紫甘薯花色苷在双水相萃取体系中的分配特性。结果表明:紫甘薯中主要含有8种花色苷,分别为不同酰基化的芍药素和矢车菊素。花色苷苷元和酰基化结构影响其在双水相萃取体系上下相中的分配。相同酰基化的花色苷,芍药素花色苷分配系数大于矢车菊素花色苷。含相同苷元的花色苷,双酰化结构在双水相体系中的分配系数大于单酰化结构。

关键词: 紫甘薯, 花色苷, 双水相, 分配系数

Abstract:

Anthocyanins in purple sweet potato were tentatively identified and quantified by HPLC-MS to assess their partition
characteristics during aqueous two-phase extraction. Eight anthocyanins including cyanidin and peonidin with different acylated
groups were indentified. The anthocyanidin and acylated groups of anthocyanins could influence their partitions in the aqueous
two-phase system. Cyanidin-type anthocyanins had a greater partition coefficient than peonidin-type ones of the same degree of
acetylation. With the same aglycones, diacylated anthocyanins had a greater partition coefficient than monoacylated ones.

Key words: purple sweet potato, anthocyanin, aqueous two-phase, distribution coefficient

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