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李美玲,彭健玲,江海都,柴胜丰,朱成豪,熊忠臣.9种金花茶花抗氧化活性及其主要活性物质含量的研究[J].广西科学院学报,2020,36(4):419-426. [点击复制]
- LI Meiling,PENG Jianling,JIANG Haidu,CHAI Shengfeng,ZHU Chenghao,XIONG Zhongchen.Study on Antioxidant Activity and Content of Main Active Components of 9 Kinds of Yellow Camellia Flowers[J].Journal of Guangxi Academy of Sciences,2020,36(4):419-426. [点击复制]
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| 9种金花茶花抗氧化活性及其主要活性物质含量的研究 |
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李美玲1,2, 彭健玲1,2, 江海都1,3, 柴胜丰1, 朱成豪1, 熊忠臣1
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| (1.广西壮族自治区中国科学院广西植物研究所, 广西植物功能物质研究与利用重点实验室, 广西桂林 541006;2.广西师范大学生命科学学院, 广西桂林 541006;3.桂林理工大学旅游与风景园林学院, 广西桂林 541006) |
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| 摘要: |
| 为比较不同种类金花茶花抗氧化活性的差异及其与主要活性成分含量的关系，本研究对9种金花茶花进行羟基自由基（·OH）去除能力、氮自由基（DPPH·）去除能力、超氧阴离子自由基（O2-·）去除能力和总还原力的测定，并综合评价其抗氧化活性；然后用分光光度法测定主要活性成分总黄酮和茶多酚的含量，分析其与抗氧化活性间的关系。结果显示，不同种类的金花茶花的抗氧化活性由强到弱依次为凹脉金花茶（Camellia impressinervis）>毛瓣金花茶（C.pubipetala）>中东金花茶（C.achrysantha）>武鸣金花茶（C.wumingensis）>崇左金花茶（C.chuongtsoensis）>龙州金花茶（C.longzhouensis）>普通金花茶（C.nitidissima）>天峨金花茶（C.tianeensis）>东兴金花茶（C.tunghinensis）。不同金花茶花的总黄酮含量和茶多酚含量差异显著（P<0.05），其中中东金花茶花的总黄酮和茶多酚含量最高，分别为24.71%和10.21%；东兴金花茶花的含量最低，分别为2.42%和1.03%。Pearson相关性分析表明，金花茶花的总黄酮和茶多酚含量与其对·OH去除能力和总还原力呈极显著正相关的关系（P<0.01）。总黄酮及茶多酚是金花茶花抗氧化活性的部分物质基础，该结果可为进一步研究开发优质金花茶产品提供科学参考。 |
| 关键词: 金花茶花 抗氧化活性 茶多酚 总黄酮 评价 |
| DOI：10.13657/j.cnki.gxkxyxb.20210115.009 |
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| 基金项目:国家自然科学基金项目（32060248），广西创新驱动发展专项（桂科AA18118049，桂科AA17204056）和广西植物功能物质研究与利用重点实验室项目（ZRJJ2019-2）资助。 |
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| Study on Antioxidant Activity and Content of Main Active Components of 9 Kinds of Yellow Camellia Flowers |
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LI Meiling1,2, PENG Jianling1,2, JIANG Haidu1,3, CHAI Shengfeng1, ZHU Chenghao1, XIONG Zhongchen1
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| (1.Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, Guangxi, 541006, China;2.College of Life Science, Guangxi Normal University, Guilin, Guangxi, 541006, China;3.College of Tourism and Landscape Architecture, Guilin University of Technology, Guilin, Guangxi, 541006, China) |
| Abstract: |
| In order to compare the difference of antioxidant activity of different yellow Camellia flowers and their relationship with the content of main active components,the ·OH,DPPH·,O2-· removal capacity and total reducing power of flowers in 9 kinds of yellow Camellia flowers were measured and comprehen-sively evaluated,and the content of total flavonoids,tea polyphenols of these materials were also determined by the spectrophotometry.The relationship between antioxidant activity and the content of main active components was analyzed.The results showed that the antioxidant capacity of different kinds of yellow Camellia flowers in order from strong to weak was C.impressinervis>C.pubipetala>C.achrysantha>C.wumingensis>C.chuongtsoensis>C.longzhouensis>C.nitidissima>C.tianeensis>C.tunghinensis.The contents of total flavonoids and tea polyphenols in different yellow Camellia flowers were significantly different (P<0.05). The contents of total flavonoids and tea polyphenols in C.achrysantha were the highest,which were 24.71% and 10.21% respectively,while that in C.tunghinensis were the lowest,which were 2.42% and 1.03% respectively.Pearson correlation analysis showed that the content of total flavonoids and tea polyphenols in flowers was significantly positively correlated with their ·OH removal capacity and total reducing power (P<0.01). Total flavonoids and tea polyphenols are part of the material basis of the antioxidant capacity of yellow Camellia flowers.The results provide a scientific reference for further research and development of high quality Camellia products. |
| Key words: yellow Camellia flowers antioxidant activities tea polyphenols total flavonoids evaluation |
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