摘要:本实验按照一定条件萌发处理,测定不同萌发期黑豆豆芽中总黄酮、异黄酮、皂苷的含量,并利用对超氧阴离子自由基和羟自由基的清除作用研究不同萌发期黑豆豆芽的抗氧化活性。结果表明,黑豆在萌发96 h 时的异黄酮提取率最高为0.32%;48 h 时黑豆的皂苷提取率最高为3.45%;72 h 时黑豆的总黄酮提取率最高为1.18mg/g。随着培养时间的增加,黑豆提取液对超氧阴离子自由基清除率有减小的趋势,在96 h 时最小为70%,在60 h时最大为96%;随着培养时间增加,黑豆提取液对羟自由基清除活性有减小的趋势,在96 h 时最小0.53%,在6 h 时最大为85.03%。39167 毕业论文关键字:黑豆;异黄酮;总黄酮;皂苷;抗氧化活性
The Several Secondary Metabolic Components and Antioxidant Activity Change of Black Beans in the Different Germinnation
Abstract: The purpose of this study was to study the changes of isoflavones,saponins,iotal flavonids and antioxidant activity, during the period of different time. The results showed that while the isoflavone extraction rate up to 0.32% in 96 h, the saponin extraction rate of black beans up to 3.45% in 48 h, the total flavonids extraction rate up to 1.18mg/g in 72 h. With increasing incubation time, the black bean extract of superoxide anion radical scavenging rate tended to decrease, While 96 h at a minimum of 70%, at 60 h up to 96%, As the culture time, black bean extract on hydroxyl radical scavenging activity tended to decrease, 96 h at a minimum of 0.53% during 6 h maximum of 85.03%.
Key words: Black beans; Isoflavones; Flavonoids; Saponins; Antioxidant activity
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