JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2016, Vol. 51 ›› Issue (5): 1-5.doi: 10.6040/j.issn.1671-9352.0.2015.542

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Effects of extraction agents on the antioxidant activity and condensability of Aronia melanocarpa polyphenol

LI Zhao1,2, LI Hong-qiang2, CHEN Guo-gang1, WU Jian3,4, XU Jian2*   

  1. 1. Food College, Shihezi University, Shihezi 832000, Xinjiang, China;
    2. National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Information Engineering, Zhejiang A &
    F University, Linan 311300, Zhejiang, China;
    4. Research Center for Smart Agriculture and Forestry, Zhejiang A &
    F University, Linan 311300, Zhejiang, China
  • Received:2015-11-18 Online:2016-05-20 Published:2016-05-16

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Abstract: Since the healthy effects of polyphenols have been gradually recognized, Aronia melanocarpa, a polyphenols-rich berry, received more and more attentions. Efficient extraction of total polyphenols from this kind of berry was an important way of the high-value usage. In this paper, a comparative study of extracting effects of acidic ethanol, ethanol and water on Aronia melanocarpa polyphenols was performed. The results showed that acidic ethanol had the highest polyphenols extraction ratio, while the extraction ratio of water was 28.77% of acidic ethanol. The analysis of polyphenols antioxidant activity(DPPH radical removing capability)showed that the water-extracted polyphenols had a higher antioxidant activity than those extracted from alcohol and acidic ethanol. The ratio of total DPPH radical removal capability of acidic ethanol-, ethanol- and water-extracted polyphenols was 100∶76.10∶70.83. In addition, the condensabilities of the three kinds of extractions were compared. When the extractions were evaporated to 10% of original volume, the antioxidant activity was almost not lost. However, after being freeze-dried, only the water-extractd polyphenol was 山 东 大 学 学 报 (理 学 版)第51卷 - 第5期李曌,等:野樱莓多酚提取剂对多酚抗氧化活性和可浓缩性的影响 \=-completely reconstituted. Considering the cost, safety and other factors, water had certain advantages to Aronia melanocarpa polyphenols extraction.

Key words: polyphenols, solubility, DPPH, extract solvent, Aronia melanocarpa

CLC Number: 

  • R154
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