食品科学

• 基础研究 • 上一篇    下一篇

连翘叶中连翘苷和连翘酯苷A对食用油脂的抗氧化活性

邱智军1,2,原江锋1,张国庆2,刘胜男2   

  1. 1.河南科技大学食品与生物工程学院,河南 洛阳 471023;2.三门峡出入境检验检疫局,河南 三门峡 472000
  • 出版日期:2015-09-15 发布日期:2015-09-11

Antioxidant Activity of Forsythin and Forsythiaside A from Forsythia suspensa Leaves on Edible Oils

QIU Zhijun1,2, YUAN Jiangfeng1, ZHANG Guoqing2, LIU Shengnan2   

  1. 1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China;
    2. Sanmenxia Entry-Exit Inspection and Quarantine Bureau, Sanmenxia 472000, China
  • Online:2015-09-15 Published:2015-09-11

摘要:

针对连翘叶中提取、分离和纯化的连翘苷和连翘酯苷A进行研究,通过油脂抗氧化实验,分别以油脂的酸价值和过氧化值为参考指标,评价连翘苷和连翘酯苷A的抗氧化活性和VC、柠檬酸对连翘苷和连翘酯苷A的协同增效作用。结果表明:制备得到纯度为93%连翘苷和92%连翘酯苷A,连翘苷和连翘酯苷A对猪油氧化作用均有一定的抑制作用,且随着剂量的增加,抑制效果越明显;其中,连翘酯苷A对油脂氧化的抑制作用远优于连翘苷,效果与阳性对照2,6-二叔丁基-4-甲基苯酚接近;VC和柠檬酸对连翘苷和连翘酯苷A的抗氧化作用均表现出协调增效作用。

关键词: 连翘苷, 连翘酯苷A, 食用油脂, 抗氧化

Abstract:

This study was focused on the antioxidant activity of forsythin and forsythiaside A isolated and purified from
leaves of Forsythia suspensa. and the synergistic effect of the two compounds with vitamin C and citric acid as evaluated
by acid value and peroxide value (POV) of lard. The results showed that forsythin with purity of 93% and forsythiaside A
with purity of 92% were obtained and that both of these compounds had concentration-dependent inhibitory effects on
lipid oxidation in lard. The inhibitory effect of forsythiaside A was close to that of the positive control 2,6-di-tert-butyl-4-
methylphenol (BHT) but the inhibitory effect of forsythin on lipid oxidation was far weaker than that of forsythoside A. Both
vitamin C and citric acid exhibited remarkable synergistic antioxidant activity with forsythin and forsythiaside A.

Key words: forsythin, forsythiaside A, edible oil, antioxidant activity

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