食品科学

• 工艺技术 •    下一篇

大孔树脂纯化蓝莓果渣多酚及其组成分析

安晓婷,周 涛,李春阳,王兴娜   

  1. 1.江苏省农业科学院农产品加工研究所,江苏 南京 210014;2.南京师范大学金陵女子学院,江苏 南京 210097
  • 出版日期:2013-10-25 发布日期:2013-09-28

Macroporous Resin Purification of Polyphenols from Blueberry Pomace and Its Composition Analysis

AN Xiao-ting,ZHOU Tao,LI Chun-yang,WANG Xing-na   

  1. 1. Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. Ginling College, Nanjing Normal University, Nanjing 210097, China
  • Online:2013-10-25 Published:2013-09-28

摘要:

采用大孔树脂对蓝莓果渣多酚进行纯化,并采用HPLC-DAD-MS分析其多酚组成。结果表明:AB-8树脂的吸附量为24.38mg/g,解吸率为95.49%,并且达到吸附平衡与解吸平衡的时间较短,较适合蓝莓果渣多酚的纯化。最佳吸附条件为上样溶液多酚质量浓度2.6mg/mL、pH2、上样流速2mL/min;最佳洗脱条件为乙醇体积分数60%、洗脱流速2mL/min,在此条件下,蓝莓果渣多酚纯度由11.05%提高到59.29%。HPLC-DAD-MS检测结果显示,蓝莓果渣多酚主要组分为7种花色苷,分别为飞燕草色素-3-半乳糖苷、飞燕草色素-3-葡萄糖苷、矢车菊色素-3-半乳糖苷、牵牛花色素-3-半乳糖苷、牵牛花色素-3-葡萄糖苷、锦葵色素-3-半乳糖苷、锦葵色素-3-葡萄糖苷。

关键词: 蓝莓果渣多酚, 大孔树脂, 纯化, 高效液相色谱-二极管阵列检测-质谱

Abstract:

Polypehenols from blueberry pomace, a byproduct of blueberry juice production, were purified by macroporous
resin chromatography and HPLC-DAD-MS was used to analyze the polyphenol composition of extracts. The results
indicated that the absorption capacity and desorption capacity of AB-8 resin were 24.38 mg/g and 95.49%, respectively. In
addition, the time for reaching the adsorption and desorption equilibrium in AB-8 resin was short, so it was the most suitable
to purify blueberry pomace polyphenols. The optimum adsorption parameters of AB-8 resin were polyphenol concentration
of 2.6 mg/mL, pH 2, feeding rate of 2.0 mL/min, and the optimal desorption parameters were ethanol concentration of 60%
and elution rate of 2.0 mL/min. After purification, the purity of polyphenols was increased from 11.05% to 59.29%. HPLCDAD-
MS analysis showed that the major components of blueberry pomace polyphenols included 7 kinds of anthocyanins
such as delphindin-3-galactoside, delphindin-3-glucoside, malvidin-3-glucoside, petunidin-3-galactoside, petunidin-3-
glucoside, malvidin-3-galactoside, and cyanidin-3-galactioside.

Key words: blueberry pomace polyphenols, macroporous resin, purification, high-performance liquid chromatographydiode-array detection-mass spectrometry (HPLC-DAD-MS)