食品科学 ›› 2011, Vol. 32 ›› Issue (15): 39-42.doi: 10.7506/spkx1002-6630-201115009

• 基础研究 • 上一篇    下一篇

溪黄草根不同溶剂提取物的抗氧化性

董 怡,林恋竹,赵谋明*   

  1. 华南理工大学轻工与食品学院
  • 出版日期:2011-08-15 发布日期:2011-07-26
  • 基金资助:
    广东省科技计划项目(2007A020902002)

Antioxidant Activity of Different Solvent Extracts from Rabdosia serra (Maxim.) Hara Roots

DONG Yi,LIN Lian-zhu,ZHAO Mou-ming*   

  1. (School of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China)
  • Online:2011-08-15 Published:2011-07-26

摘要: 考察7种溶剂(蒸馏水、60%乙醇、无水乙醇、甲醇、丁醇、氯仿和乙酸乙酯)对溪黄草根中可溶出成分的提取效果,研究7种提取物总酚含量、清除DPPH自由基能力、清除ABTS+ ·能力和螯合Fe2+的能力。结果表明:水和60%乙醇对溪黄草根中可溶出成分的提取效果最好;60%乙醇提取物总酚含量最高,清除DPPH自由基能力最高(超过迷迭香提取物、竹叶提取物、抗坏血酸棕榈酸酯),清除ABTS+ ·能力最好(超过迷迭香提取物),并具有较强的螯合Fe2+能力(超过迷迭香提取物、竹叶提取物、抗坏血酸棕榈酸酯)。

关键词: 溪黄草根, 总酚, 抗氧化性

Abstract: The extraction efficiency of soluble components from Rabdosia serra (Maxim.) Hara roots using seven kinds of solvents such as distilled water, 60% ethanol, aqueous ethanol, methanol, butanol, chloroform and ethyl acetate was explored. Meanwhile, total phenol contents and the abilities to scavenge DPPH and ABTS free radicals and to chelate Fe2+ of seven different extracts were also evaluated. The results showed that water and 60% ethanol extracts had better effectiveness in extracting soluble components from R. serra (Maxim.) Hara roots. In addition, the highest content of total phenols was detected in 60% ethanol extract. Moreover, 60% ethanol extract also revealed the best DPPH racial scavenging capacity (better than rosemary extract, bamboo extract and ascorbyl palmitate), the best ABTS+ · scavenging capacity (better than rosemary extract), and the best Fe2+ chelating capacity (better than rosemary extract, bamboo extract and rutin).

Key words: Rabdosia serra (Maxim.) Hara root, total phenols, antioxidant capability

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