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林业科学 ›› 2014, Vol. 50 ›› Issue (8): 53-59.doi: 10.11707/j.1001-7488.20140808

• 论文与研究报告 • 上一篇    下一篇

新疆药用植物黑桑的抗氧化性

王传宏, 刘超, 刘静, 向伟, 黄先智, 徐立   

  1. 西南大学生物技术学院 重庆 400715
  • 收稿日期:2013-10-14 修回日期:2014-06-05 出版日期:2014-08-25 发布日期:2014-07-31
  • 基金资助:
    The Fundamental Research Funds for the Central Universities(XDJK2013C053).

Antioxidant Activity of Medicine Mulberry (Morus nigra) in Xinjiang

Wang Chuanhong, Liu Chao, Liu Jing, Xiang Wei, Huang Xianzhi, Xu Li   

  1. College of Biotechnology, Southwest University Chongqing 400715
  • Received:2013-10-14 Revised:2014-06-05 Online:2014-08-25 Published:2014-07-31
  • Contact: 徐立
  • Supported by:
    The Fundamental Research Funds for the Central Universities(XDJK2013C053).

摘要: 为寻找一种天然的抗氧化材料,以新疆药用植物黑桑的根、枝、叶和果实的乙醇提取物为材料,进行总多酚、总黄酮、抗氧化能力以及螯合Fe2+测定。结果显示:果实(桑椹)提取物(EEMF)的总多酚含量(0.943 8 mg·mL-1)以及总黄酮含量(0.174 7 mg·mL-1)与叶提取物(EEML)、枝提取物(EEMB)和根提取物(EEMR)相比并不高,但EEMF的抗氧化能力最强,其清除羟基自由基、DPPH自由基能力分别达到96.46%,96.83%,抑制脂质体氧化能力达到71.14%;此外,EEMF螯合Fe2+能力也强于其他3种。表明黑桑4个部位都具有良好的抗氧化能力,且果实最佳。

关键词: 药桑, 黑桑, 总多酚, 总黄酮, 抗氧化性, 螯合Fe2+

Abstract: In order to find a natural antioxidant material, ethanolic extracts of fruits (EEMF), leaves (EEML), branches (EEMB) and roots (EEMR) of medicine mulberry(Morus nigra) were investigated. The results showed that although the medicine mulberry fruits did not have the highest total polyphenol content (0.943 8 mg·mL-1) and total flavonoids content (0.174 7 mg·mL-1) among those organs, the EEMF possessed the strongest antioxidant effect. The abilities of scavenging hydroxyl radicals, scavenging DPPH radicals and inhibiting lipid oxidation reached to 96.46%, 96.83% and 71.14%, respectively. In addition, Fe2+ chelating ability of EEMF was stronger than that of EEMR, EEMB and EEML. Therefore, medicine mulberry fruit can be used to develop a natural and nutritious food additive.

Key words: medicine mulberry, Morus nigra, total polyphenols, total flavonoids, antioxidant activity, Fe2+-chelating activity

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