食品科学 ›› 2011, Vol. 32 ›› Issue (15): 135-138.doi: 10.7506/spkx1002-6630-201115031

• 基础研究 • 上一篇    下一篇

桑白皮中白藜芦醇、氧化白藜芦醇和桑皮苷的抗氧化活性

王元成,伍 春,陈 虎,郑 颖,徐 立*,黄先智   

  1. 西南大学生物技术学院
  • 出版日期:2011-08-15 发布日期:2011-07-26
  • 基金资助:
    教育部博士点基金项目(20090182120018);国家现代农业(蚕桑)产业技术体系建设专项(nycytx-27-gw504)

Antioxidant Activities of Resveratrol, Oxyresveratrol, Esveratrol, Mulberroside A from Cortex mori

WANG Yuan-cheng,WU Chun,CHEN Hu,ZHENG Ying,XU Li*,HUANG Xian-zhi   

  1. (College of Biotechnology, Southwest University, Chongqing 400716, China)
  • Online:2011-08-15 Published:2011-07-26

摘要: 二苯乙烯类化合物具有很好的抗氧化和抑制酪氨酸酶的活性,以熊果苷、VC、VE为参照,对桑白皮中的3种二苯乙烯类化合物(氧化白藜芦醇、白藜芦醇、桑皮苷)的抗氧化和清除自由基的生物活性进行比较研究。结果表明:还原力强弱:VC>白藜芦醇>氧化白藜芦醇>VE>熊果苷>桑皮苷;清除DPPH自由基能力:VC>VE>氧化白藜芦醇>白藜芦醇>桑皮苷>熊果苷;清除ABTS+ ·能力:白藜芦醇>氧化白藜芦醇>熊果苷>桑皮苷>VC >VE。

关键词: 桑白皮, 二苯乙烯类物质, 抗氧化性, 食品添加剂

Abstract: Stilbene compounds can protect foods from oxidation and inhibit tyrosinase activity. Using arbutin, vitamin C (VC) and vitamin E (VE) as the reference substances, the antioxidant activities and radical scavenging capacities of 3 kinds of stilbene compounds such as resveratrol, oxyresveratrol and mulberroside A from Cortex mori were investigated. The results showed that the six investigated antioxidant substances ranked in the following order: VC > resveratrol > oxyresveratrol > VE > arbutin > mulberroside A in terms of their reducing power, VC > VE > oxyresveratrol > resveratrol > arbutin > mulberroside A in terms of their DPPH radical scavenging capacity, and resveratrol > oxyresveratrol > arbutin > mulberroside A > VC > VE in terms of their ABTS+ · scavenging capacity. These results will promote their application in food additives.

Key words: Cortex mori, stilbene compounds, antioxidant activity, food additives

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