| 广西红树植物银叶树不同部位提取物体外抗氧化性分析 |
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| 引用本文： | 张艳军,彭重威,钟秋平,欧闰庄,全小红.广西红树植物银叶树不同部位提取物体外抗氧化性分析[J].广西农业科学,2013(12):2066-2070. |
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| 作者姓名： | 张艳军 彭重威 钟秋平 欧闰庄 全小红 |
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| 作者单位： | [1]钦州学院化学化工学院,广西钦州535000 [2]钦州学院化学海洋学院,广西钦州535000 |
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| 基金项目： | 广西教育厅科研项目（200911LX437）;钦州学院引进人才科研启动基金项目（2007） |
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| 摘 要： | 【目的】测定广西银叶树树叶、树枝和种子提取物的抗氧化活性，为银叶树资源的药用开发提供参考。【方法】以L-抗坏血酸试剂作为阳性对照，测定银叶树树叶、树枝和种子乙醇提取物对DPPH自由基、羟基自由基的清除作用和还原能力及各提取物中总黄酮和总酚含量。【结果】银叶树不同部位提取物对DPPH 自由基和羟基自由基均有一定的清除作用，且在一定浓度范围与其浓度呈正相关，其中对DPPH自由基、羟基自由基清除率强弱依次为：L-抗坏血酸＞树枝提取物＞树叶提取物＞种子提取物。提取物还原能力强弱顺序为：L-抗坏血酸＞树枝提取物＞树叶提取物＞种子提取物。银叶树不同部位提取物的总黄酮平均含量在3.65%-5.56%，以树枝提取物总黄酮含量最高，为5.56%；银叶树不同部位提取物的总酚平均含量在18.83%-23.27%，以树枝提取物总酚含量最高，为23.27%。【结论】银叶树不同部位提取物均具有一定的抗氧化性，可作为抗氧化剂资源进一步研究。
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| 关 键 词： | 银叶树 抗氧化活性 自由基 还原能力 总黄酮 总酚 |
In vitro antioxidant activities in different parts of Heritiera Iittoralis Dryand of mangrove plants in Guangxi |
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| ZHANG Yan-jun,PENG Chong-wei,ZHONG Qiu-ping,OU Run-zhuang,QUAN Xiao-hong.In vitro antioxidant activities in different parts of Heritiera Iittoralis Dryand of mangrove plants in Guangxi[J].Guangxi Agricultural Sciences,2013(12):2066-2070. |
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| Authors: | ZHANG Yan-jun PENG Chong-wei ZHONG Qiu-ping OU Run-zhuang QUAN Xiao-hong |
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| Institution: | 1 (tSchool of Chemistry and Chemical Engineering of Qinzhou University, Qinzhou, Guangxi 535000, China; 2Marine School of Qinzhou University, Qinzhou, Guangxi 535000, China) |
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| Abstract: | 【Objective】Antioxidant activities in different parts （leaves, branches and seeds） of Heritiera littoralis extracts were measured in order to provide references for exploring pharmaceutical value of Heritiera littoralis resources.【Method】L-ascorbic acid reagent was used as the positive control. Antioxidant activity was evaluated by testing the scavenging activity on DPPH· and hydroxyl free radical（·OH） and reducing power of the extracts in different parts. Besides, the total content of flavonoids and polyphenols in the extracts was analyzed. 【Result】The results showed that the Heritiera littoralis extracts of different parts had scavenging effect on DPPH· and OH free radicals. The scavenging effect was positively related to the concentration in a certain concentration range. The ability sequence of scavenging DPPH· and hydroxy radical was L-ascorbic acid〉branch extracts〉leaf extracts〉seed extracts. Reducing power sequence of extracts was L-ascorbic acid〉branch extracts〉leaf extracts〉seed extracts. The average content of total flavonoids in extracts from different parts was between 3.65% and 5.56% （branch extracts）. The average content of total phenols from different parts extracts was between 18.83% and 23.27% （branch extracts）. 【Conclusion】The extracts in different parts of Heritiera littoralis have antioxidant activity, which provides references for development and utilization of Heritiera littoralis. |
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| Keywords: | Hedtiera littoralis Dryand antioxidant activity flee radical reducing power total flavonoids total phenols |
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