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A comparative study on antioxidant activity of ten different parts of Nelumbo nucifera Gaertn.

文献类型： 外文期刊

作者： Wu, Yan-Bin 1 ; Zheng, Li-Jun 1 ; Yi, Jun 2 ; Wu, Jian-Guo 1 ; Tan, Chun-Jiang 1 ; Chen, Ti-Qiang 3 ; Wu, Jin-Zhong 1 ; W 1 ;

作者机构： 1.Fujian Univ Tradit Chinese Med, Acad Integrat Med, Fuzhou 350108, Fujian, Peoples R China

2.Fujian Inst Educ, Dept Chem & Life Sci, Fuzhou 350001, Fujian, Peoples R China

3.Fujian Acad Agr Sci, Inst Edible & Med Fungi, Fuzhou 350013, Peoples R China

4.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Hong Kong, Peoples R China

关键词： Louts (Nelumbo nucifera);total phenolic content;total flavonoid content;total proanthocyanidin content;antioxidant activity

期刊名称：AFRICAN JOURNAL OF PHARMACY AND PHARMACOLOGY （ 影响因子：0.839； 五年影响因子：0.875 ）

ISSN： 1996-0816

年卷期： 2011 年 5 卷 22 期

页码：

收录情况： SCI

摘要： The in vitro antioxidant activity of ten different parts of lotus (Nelumbo nucifera Gaertn.) was evaluated and compared. Among the ten lotus extracts, the receptacle did not only possessed the highest phenolic, flavonoid and proanthocyanidin contents, but its 2-picrylhydrazyl free (DPPH) and 2, 2'-Azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activities, reducing power as well as total antioxidant activity were also comparable to, if not better than those of the butylated hydroxytoluene (BHT) control (p < 0.05). Compared with the BHT, all ten lotus extracts even exhibited significantly (p < 0.05) higher metal chelating activity. Nevertheless, the hydroxyl radical scavenging ability of all ten lotus extracts was significantly (p < 0.05) lower than that of the ascorbic acid control. In contrast to the metal chelating ability, phenolic compounds in the ten lotus extracts would likely be responsible for their DPPH and ABTS radical scavenging activities.

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