天津农学院学报 ›› 2020, Vol. 27 ›› Issue (3): 74-78.doi: 10.19640/j.cnki.jtau.2020.03.017

• 研究与简报 • 上一篇    下一篇

碧根果壳总黄酮的提取工艺优化和抗氧化活性研究

康坤1, 王俊斌1,2,通信作者, 王海凤3, 王凤堂1, 王耀国1, 王昊1   

  1. 1.天津农学院 基础科学学院,天津 300384;
    2.天津农学院 化学实验教学中心,天津 300384;
    3.天津农学院 农业分析测试中心,天津 300384;
  • 收稿日期:2020-04-13 出版日期:2020-10-10 发布日期:2020-10-10
  • 通讯作者: 王俊斌(1979-),男,副研究员,博士,主要从事生物活性物质提取和功能方面的研究。E-mail:419647768@qq.com。
  • 作者简介:康坤(1997-),女,本科在读,主要从事生物活性物质提取和功能方面的研究。E-mail:2310909343@qq.com。
  • 基金资助:
    天津农学院大学生创新创业训练计划项目(201810061243); 天津农学院教育教学研究与改革项目(2018-B-05)

Optimization of extraction and antioxidant activity of total flavonoids in pecan shell

KANG Kun1, WANG Jun-bin1,2,Corresponding Author, WANG Hai-feng3, WANG Feng-tang1, WANG Yao-guo1, WANG Hao1   

  1. 1. College of Basic Sciences, Tianjin Agricultural University, Tianjin 300384, China;
    2. Chemistry Experiment Teaching Center, Tianjin Agricultural University, Tianjin 300384, China;
    3. Center for Agricultural Analysis and Measurement, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2020-04-13 Online:2020-10-10 Published:2020-10-10

摘要: 以碧根果壳为材料,采用超声辅助浸提法提取总黄酮。以总黄酮提取率为评价指标,在单因素试验结果的基础上,利用正交法对提取工艺条件进行优化,并考察碧根果壳黄酮提取物对1,1-二苯基-2-三硝基苯肼(DPPH)、超氧阴离子自由基的清除能力。结果表明:在乙醇浓度为65 %、料液比为1∶30、提取温度为40 ℃、提取时间为50 min的条件下,碧根果壳总黄酮提取率达到最高。在一定浓度范围内,碧根果壳黄酮提取物的浓度越大,其抗氧化能力也越高。

关键词: 碧根果壳, 总黄酮, 正交试验, 抗氧化能力

Abstract: In this study, the pecan shell was used as the material to extract total flavonoids by ultrasonic-assisted extraction. Taking the extraction rate of total flavonoids as the evaluation index, on the basis of single-factor test results, the orthogonal extraction method was used to optimize the extraction process conditions, and the scavenging ability of total flavonoids from the pecan shell to 1,1-diphenyl-2-picrylhydrazyl(DPPH)and superoxide anion free radical was estimated. The results showed that the extraction rate of the total flavonoids reached the highest under the conditions of ethanol concentration of 65%, material-liquid ratio of 1∶30, extraction temperature of 40 ℃ and extraction time of 50 minutes. Within a certain concentration range, the greater the concentration of the flavonoids extract of pecan shell is, the higher its antioxidant capacity will be.

Key words: pecan shell, total flavonoids, orthogonal design, antioxidant activity

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