食品科学 ›› 2004, Vol. 25 ›› Issue (3): 63-67.

• 基础研究 • 上一篇    下一篇

火炬树果穗抗氧化物质的提取及其协同效应的研究

 胡迎芬   

  1. 青岛大学生物系
  • 出版日期:2004-03-15 发布日期:2011-10-24

Study of the Staghorn Sumae’s Ear Antioxidative Effect on Lard

 HU  Ying-Fen   

  1. Department of Biology , Qingdao University
  • Online:2004-03-15 Published:2011-10-24

摘要: 用DPPH法测定了不同溶剂对火炬树果穗中抗氧化物质的浸提效果,并以猪油作为底物,采用碘量法研究了火炬树果穗95%乙醇粗提物的抗氧化活性及与其它物质的协同作用。结果表明:不同溶剂火炬树果穗提取物抗氧化性强弱依次为乙醇>乙酸乙酯>正己烷。随着火炬树果穗粗提取物浓度的增加,其抗氧化作用逐渐增强,抗坏血酸、柠檬酸对其具有一定协同作用,但氨基酸对火炬树果穗粗提物无明显协同作用。初步判断火炬果穗粗提物中抗氧化有效成分为酚类物质。

关键词: 火炬树果穗, 抗氧化作用, 协同效应

Abstract: Antioxidative activities of different solvent extracts of Ear of Staghorn Sumae were studied by 1,1-diphenyl-2-picryhydrazyl (DPPH) free radical method, and the antioxidative activities of ethanol extracts with other materials were studiedby Na2S2O3-I2 litrimetric method using lard as substrates. The results show that the antioxidative activities of different solventextracts decreased in the order: ethanol solution >ethyl acetate > n-hexane. Antioxidative activities were strengened whenincreasing the usage of extracts. Ascorbic acid and Citric acid had synergistic antioxidative activities with ethanol extracts, butamino acid had no synergistic effect. The antioxidative components of Staghorn Sumae is Ear are suggested to be polyphenolicsubstances.

Key words: Ear of Staghorn Sumae [Rhus typhina L.], antioxidative effect, synergistic effect