GE Fei,GUI Lin,TAO Yu-gui,et al.DPPH Radical Scavenging Activity of Extract from Soybean Residue and Coordination Effect[J].Soybean Science,2010,29(01):113-117.[doi:10.11861/j.issn.1000-9841.2010.01.0113]
大豆豆渣粗提物清除DPPH自由基活性及其协同效应的研究
- Title:
- DPPH Radical Scavenging Activity of Extract from Soybean Residue and Coordination Effect
- 文章编号:
- 1000-9841(2010)01-0113-05
- Keywords:
- Extract from soybean residue; 1-Dphenyl-2-picrylhydrazyl(DPPH); Antioxidation effect; Coordination effect
- 分类号:
- TS202.3
- 文献标志码:
- A
- 摘要:
- 用二苯代苦味肼基自由基(DPPH)-TLC法和酶标仪法对大豆豆渣石油醚、乙酸乙酯、丙酮、乙醇粗提物的自由基清除活性进行了定性和定量分析,考察了抗氧化剂维生素C、柠檬酸对大豆豆渣乙醇粗提物清除DPPH自由基活性的协同效应。结果表明:大豆豆渣不同极性粗提物均有一定的自由基清除活性,其中乙醇粗提物的自由基清除活性最强,在浓度为10.0 mg·mL-1,于37℃下保温15 min时,对0.4 mg·mL-1的DPPH自由基的清除率可达76.48%;维生素C和柠檬酸对大豆豆渣乙醇粗提物均能产生一定的协同效应,且维生素C的协同作用强于柠檬酸。
- Abstract:
- To study the DPPH radical scavenging activity of the extracts from soybean residue and the coordination effect with other antioxidants,DPPH-TLC and DPPH-Microplate assays were used to determine the free radical scavenging activities of the petroleum ether,ethyl acetate,acetone and ethanol extracts from soybean residue. The results revealed that these extracts all had free radical scavenging activities. The DPPH radical scavenging activity of the ethanol extracts was much higher than that of petroleum ether,ethyl acetate and acetone extracts. At concentration of 10.0 m·mL-1,the ethanol extract from soybean residue could reach 76.48% of 0.4 m·mL-1 DPPH radicals after incubating at 37℃ for 15 minutes. At the same time,coordination of DPPH radical scavenging activity of the ethanol extract from soybean residue with Vc and citric acid was studied. Vc and citric acid could intensify DPPH radical scavenging activity of ethanol extract from soybean residue. Vc exhibited stronger synergistic effect than that of citric acid.
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备注/Memo
基金项目:安徽省高校自然科学基金资助项目(KJ2009B071);安徽工程科技学院引进人才科研启动基金资助项目(2007YQ005);芜湖市科技计划资助项目(2008505)。