食品科学 ›› 2010, Vol. 31 ›› Issue (19): 49-53.doi: 10.7506/spkx1002-6630-201019008

• 基础研究 • 上一篇    下一篇

灵芝三萜皂苷(GCTL1)的体外抗氧化作用

崔月花1,章克昌2   

  1. 1.扬州大学生物科学与技术学院 2.江南大学 教育部工业生物技术重点实验室
  • 收稿日期:2010-01-27 出版日期:2010-10-15 发布日期:2010-12-29
  • 通讯作者: 崔月花 E-mail:yhcui@yzu.edu.cn
  • 基金资助:

    扬州大学博士科研启动基金项目

Assessment of in vitro Antioxidant Activity of a Triterpenoidal Saponin from Ganoderma lucidum Fruit Bodies

CUI Yue-hua1,ZHANG Ke-chang2   

  1. 1. College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China;2. Key Laboratory of Industrial
    Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
  • Received:2010-01-27 Online:2010-10-15 Published:2010-12-29
  • Contact: CUI Yue-hua E-mail:yhcui@yzu.edu.cn

摘要:

采用化学模拟体系研究灵芝三萜皂苷(GCTL1)对超氧阴离子自由基、羟自由基、DPPH 自由基及过氧化氢自由基的清除能力,测定其还原力和铁螯合力,并与合成的抗氧化剂进行比较。结果表明,GCTL1 具有较好的抗氧化作用。GCTL1 清除超氧阴离子自由基、羟自由基、DPPH 自由基、过氧化氢自由基的IC50 分别为:(0.247 ±0.05)、(0.197 ± 0.002)、(0.09 ± 0.02)、(0.279 ± 0.04)mg/mL;还原力为0.5、铁螯合力为50% 时GCTL1 质量浓度分别为(0.425 ± 0.01)、(0.180 ± 0.04)mg/mL,并且在一定质量浓度范围内具有剂量依赖效应;GCTL1 的总体抗氧化能力高于VC 和2,6 二叔丁基对甲酚(BHT)。

关键词: 灵芝, 三萜皂甙, 抗氧化活性, 清除率

Abstract:

To assess the in vitro antioxidant activity of a triterpenoidal saponin from Ganoderma lucidum, named GCTL1, GCTL1 was tested for its abilities to scavenge superoxide anion, hydroxyl, DPPH and hydroxyl peroxide free radicals, reducing power and ferric-chelating capacity and was compared with BHT and vitamin C, synthetic antioxidants. GCTL1 had interesting antioxidant effect. The IC50 values for scavenging superoxide anion, hydroxyl, DPPH and hydroxyl peroxide were (0.247 ±0.05), (0.197 ± 0.002), (0.09 ± 0.02) mg/mL and (0.279 ± 0.04) mg/mL, respectively, and the concentrations for achieving 0.5 reducing power and 50% ferric-chelating capacity were (0.425 ± 0.01) mg/mL and (0.180 ± 0.04) mg/mL. All these antioxidant properties were dependent on concentration varying in a certain range. Collectively, our findings demonstrate that GCTL1 is better antioxidant than BHT and vitamin C.

Key words: Ganoderma lucidum, triterpenoidal saponins, antioxidant activity, scavenging activity

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