天然产物研究与开发 ›› 2025, Vol. 37 ›› Issue (9): 1638-1644.doi: 10.16333/j.1001-6880.2025.9.005 cstr: 32307.14.1001-6880.2025.9.005

• 研究论文 • 上一篇    下一篇

锁阳不同萃取物总黄酮、总多酚含量与其抗氧化活性的相关性研究

王玉梅,王  莹,李  娜,李聪颖*   

  1. 河西学院,张掖 734000
  • 出版日期:2025-09-24 发布日期:2025-09-24
  • 基金资助:
    甘肃省自然科学基金(23JRRG0036);甘肃省自然科学基金(24JRRG020);河西学院博士科研启动金(KYQD2024005);甘肃省河西走廊特色资源利用重点实验室科研项目(XZ2307)

Correlation between total flavonoids and total polyphenols content with antioxidant activities of different extracts of Cynomorium songaricum

WANG Yu-mei,WANG Ying,LI Na,LI Cong-ying*   

  1. Hexi University,Zhangye 734000,China
  • Online:2025-09-24 Published:2025-09-24

摘要:

研究锁阳不同萃取物中总黄酮、总多酚的含量与其抗氧化活性的相关性,预测锁阳的抗氧化活性成分,为锁阳的开发利用提供科学参考。本研究采用二氯甲烷、乙酸乙酯、正丁醇对锁阳醇提物进行萃取,测定不同萃取物中总黄酮和总多酚含量,及其4个指标性成分没食子酸、原儿茶酸、阿魏酸、芦丁的含量;检测不同萃取物对羟基、DPPH、ABTS自由基的清除能力;分析各萃取物中总黄酮和总多酚含量和羟基、DPPH、ABTS自由基清除率的相关性。结果显示,正丁醇萃取物总黄酮和总多酚含量均最高,各萃取物中指标性成分芦丁的含量最高,原儿茶酸的含量最低,各萃取物均具有抗氧化能力,且呈明显的量效关系,其中正丁醇萃取物对DPPH自由基清除的IC50值为0.013 8 mg/mL,对ABTS自由基清除的IC50值为0.010 1 mg/mL,对羟基自由基清除的IC50值为0.340 5 mg/mL;锁阳不同萃取物中总黄酮的含量与两种自由基(DPPH、ABTS)清除能力(IC50值)呈现出极显著的相关关系(P<0.01)、总多酚的含量与两种自由基(DPPH、ABTS)清除能力(IC50值)呈现出显著的相关关系(P<0.05)。锁阳不同萃取物抗氧化活性成分主要富集于正丁醇部位;总黄酮与总多酚可能是锁阳不同萃取物抗氧化作用的基础成分。

关键词: 总黄酮, 锁阳萃取物, 总多酚, 体外抗氧化活性, 相关性

Abstract:

This study investigates the correlation between the content of total flavonoids and total polyphenols in different extracts of Cynomorium songaricum and their antioxidant activities, aiming to predict the active antioxidant components and provide scientific support for the development and utilization of this medicinal plant. Ethanol extracts of C. songaricum were subjected to successive extraction with dichloromethane, ethyl acetate, and n-butanol. The content of total flavonoids, total polyphenols, and four representative compounds: gallic acid, protocatechuic acid, ferulic acid, rutin were determined in each extract. The scavenging activities of the extracts against hydroxyl radicals, DPPH radicals, and ABTS radicals were evaluated. Furthermore, the correlations between the total flavonoids and total polyphenols content and the IC50 values for radical scavenging were analyzed. Results showed that the n-butanol extract contained the highest levels of total flavonoids, total polyphenols. The content of rutin, an indicator component, is the highest among all extracts, while the content of protocatechuic acid is the lowest. All extracts exhibited antioxidant activities in a dose-dependent manner. Specifically, the IC50 values of the n-butanol extract were 0.013 8 mg/mL for DPPH radicals, 0.010 1 mg/mL for ABTS radicals, and 0.340 5 mg/mL for hydroxyl radicals. Significant correlations were observed between the total flavonoids content and the scavenging capacities for DPPH and ABTS radicals (P < 0.01), and between the total polyphenols content and the same antioxidant indices (P < 0.05). The antioxidant active components of different extracts of C. songaricum are mainly enriched in the n-butanol fraction; Total flavonoids and total polyphenols may be the basic components of the antioxidant effects of different extracts of C. songaricum.

Key words:

total flavonoids, Cynomorium songaricum extracts, total polyphenols, in vitro antioxidant activity, correlation

中图分类号:  R284.2