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Study on Scavenging Activities on DPPH Free Radical of Bioflavonoid of Kidney Beans under Different Germination Periods

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【Author】 LI Qiong* Liupanshui Vocational Technical College, Liupanshui, Guizhou 553000, China

【摘要】 [Objective] To explore the scavenging activities on DPPH free radical of bioflavonoid of kidney beans under different germination periods. [Method] After temperature-keeping and humidity-keeping germinating of kidney beans seeds, 1, 3, 5, 7 and 9 day-old germinating seeds were taken and dried then extracted with ethanol for preparing bioflavonoid extracts under different germination periods whose DPPH scavenging activities were also investigated. [Result] The bioflavonoid content of kidney beans decreased after germination, and the lesser of the content, the longer of the germination time; the scavenging activities on DPPH free radical tended to decrease with the increase of germination time, which also decreased with the increasing dilution degrees under the same germination period; DPPH scavenging rates of bioflavonoid extracts made under different germination periods were far bigger than the vitamin C of the same concentration. [Conclusion] The bioflavonoid of kidney beans had stronger capability to scavenge the free radical.

  • 【分类号】S567.239
  • 【下载频次】34
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