Medicinal Plant

2011, v.2(06) 35-37

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

摘要(Abstract):

[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.

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